🧠 PTA 251 NEURO FINAL – FULL DEEP DIVE REVIEWER (CH 10–14)

Source: Your study guide + Kessler + O’Sullivan

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🧠 CHAPTER 10 – PNF (PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION)

📖 WHAT IS PNF (ACTUAL UNDERSTANDING)

PNF is a neurorehab approach that improves movement by using sensory input (touch, stretch, resistance).

🧠 Think of it like this: The brain forgot how to move correctly → PNF “reminds” it using patterns and cues.

🧠 PRINCIPLES (YOU WILL GET TESTED HERE)

🔥 Must Know: Traction = movement, Approximation = stability

📊 PNF PATTERNS (FUNCTION IS EVERYTHING)

⚠️ Common Trap: They won’t ask pattern names—they’ll ask FUNCTION.

📊 PNF TECHNIQUES (THIS IS GUARANTEED TESTED)

🧠 VESTIBULAR SYSTEM (O’SULLIVAN CH 21)

📖 PERIPHERAL SYSTEM

• 3 Semicircular Canals → detect rotation
• Utricle + Saccule → detect linear movement

Simple: Detects head movement and position.

📖 CENTRAL SYSTEM

Processes vestibular info + controls eye movements via VOR.

VOR: Keeps eyes stable when head moves.

📊 SYMPTOMS DIFFERENTIATION (HIGH-YIELD)

📊 TESTS

🔥 Must Know: Positive Dix-Hallpike → treat with Epley

🧠 CHAPTER 11 – STROKE (CVA)

📊 TYPES

📊 SYNDROMES

📊 BRUNNSTROM

🧠 INTERVENTIONS

• Positioning
• Early mobility
• Scapular protection

🧠 CHAPTER 12 – TBI

📊 TYPES

• Concussion
• Contusion
• Diffuse Axonal

📊 GCS

Eye (4) + Verbal (5) + Motor (6)

🔥 Must Know: 3 worst, 15 best

🧠 PROBLEMS

• Cognition
• Behavior
• Motor

🧠 CHAPTER 13 – SCI

📊 KEY MUSCLES

🔥 Must Know: C6 = grasp

🧠 COMPLICATIONS

• Autonomic dysreflexia → SIT UP
• Orthostatic hypotension

🧠 CHAPTER 14 – NEURO DISORDERS

🔥 FINAL EXAM TRUTH

You are not tested on memorization. You are tested on:

• Pattern recognition
• Clinical decisions
• Safety

If you can answer “WHY this intervention?” → you will pass.

🧠 PTA 251 NEURO FINAL – DEEP DIVE MASTER REVIEWER (CH 10–14)

Built directly from your study guide and book.

🧠 CHAPTER 10 – PNF (PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION)

📖 WHAT IS PNF (REAL UNDERSTANDING)

PNF is a treatment approach that uses sensory input (touch, stretch, resistance) to improve movement.

🧠 Translation: The nervous system isn’t activating muscles correctly → PNF gives it the “right signals” to fix movement.

🧠 PRINCIPLES (THIS IS WHAT QUESTIONS ARE BUILT FROM)

🔥 Must Know: Traction = movement, Approximation = stability

📊 PNF PATTERNS (FUNCTIONAL THINKING)

⚠️ Common Trap: They describe the FUNCTION, not the pattern name.

📊 PNF TECHNIQUES (CLINICAL DECISION SECTION)

🧠 VESTIBULAR SYSTEM (O’SULLIVAN CH 21)

📖 PERIPHERAL SYSTEM

• Semicircular canals → detect rotation
• Otolith organs (utricle/saccule) → detect linear motion

💡 If this is damaged → dizziness with movement

📖 CENTRAL SYSTEM

Brain processes vestibular input and controls eye movement through VOR.

VOR: keeps eyes stable when head moves

📊 SYMPTOMS (HIGH-YIELD DIFFERENTIATION)

🔥 Must Know: Vertigo = vestibular problem

📊 TESTS (WHAT THEY ACTUALLY MEAN)

🔥 Must Know: Positive Dix-Hallpike → Epley maneuver

🧠 CHAPTER 11 – STROKE (CVA)

📊 TYPES

📊 SYNDROMES (THIS IS TEST FAVORITE)

🔥 Must Know: MCA = MOST COMMON

🧠 IMPAIRMENTS (WHY THEY HAPPEN)

• Motor → damaged motor cortex → weakness/spasticity
• Sensory → neglect
• Cognitive → aphasia
• Postural → pusher syndrome (push toward weak side)

📊 BRUNNSTROM (RECOVERY LOGIC)

1 → Flaccid 3 → Spasticity peak 6 → Normal

💡 Exam Tip: If spastic → stage 2–3

📊 MODIFIED ASHWORTH

Measures spasticity severity

🔥 0 = none, 4 = rigid

🧠 INTERVENTIONS (WHY EACH ONE)

• Positioning: prevent contractures + protect joints
• Early mobility: prevents complications
• Scapular mobilization: prevents shoulder injury
• Functional training: improves independence

🧠 CHAPTER 12 – TBI

📊 TYPES

• Concussion → mild
• Contusion → bruising
• Diffuse axonal → severe widespread damage

📊 GCS (CRITICAL TEST AREA)

Eye (4) + Verbal (5) + Motor (6)

🔥 3 = worst, 15 = best

🧠 PROBLEM AREAS (THIS IS HOW QUESTIONS ARE ASKED)

• Consciousness → coma, alertness
• Cognition → memory, attention
• Behavior → impulsive, unsafe
• Motor → weakness

⚠️ Trap: Behavior ≠ strength problem

🧠 CHAPTER 13 – SCI

📊 KEY MUSCLES (FUNCTIONAL THINKING)

🔥 Must Know: C6 = grasp objects

🧠 COMPLICATIONS (HIGH-YIELD SAFETY)

• Autonomic dysreflexia: HIGH BP → sit patient up
• Orthostatic hypotension: BP drop → dizziness
• Pressure ulcers: immobility

🧠 CHAPTER 14 – NEURO DISORDERS

🔥 FINAL EXAM STRATEGY

• Think FUNCTION (not memorization)
• Match impairment → intervention
• Safety ALWAYS first

If you can answer “WHY this treatment?” → you will pass.

🧠 NEURO FINAL HIGH‑YIELD REVIEW

Source: Kessler Ch 10–14, O’Sullivan Ch 21, NPTE pages, Power Points.
NPTE‑style reasoning • Only your uploaded materials • Tutor‑friendly

1. PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION (PNF)

Kessler Ch 10, NPTE 261‑268, PPT Ch 10

🔑 Principles of PNF

• Manual contacts – hands provide direction & pressure → facilitate muscle contraction.
• Body position & mechanics – therapist aligns with force line; saves back, maximizes control.
• Stretch (stretch reflex) – quick stretch at beginning of range facilitates agonist.
• Manual resistance – smooth, graded resistance to increase motor output.
• Irradiation / overflow – strong contraction spreads to weaker muscles (use stronger patterns to activate weaker ones).
• Traction & approximation – traction (separation) facilitates movement; approximation (compression) facilitates stability.
• Timing of movement – distal to proximal (normal development) or “timing for emphasis”.
• Patterns of movement – diagonal, spiral; D1 & D2 for UE/LE, plus scapular/pelvic.
• Visual cues – patient watches movement to enhance motor learning.
• Verbal input – concise commands (“pull”, “push”) timed with effort.

🧩 Diagonal Patterns (Kessler 297‑308)

Scapular patterns: Superior/Inferior, Anterior/Posterior. Pelvic patterns: same diagonal logic.

⚡ PNF Techniques (Kessler 309‑324)

• Agonistic reversals – concentric → eccentric of same muscle group (improve control & power).
• Alternating isometrics – isometric hold against resistance, alternate agonists/antagonists (improve stability).
• Rhythmic initiation – passive → active-assist → active → resisted (for initiation problems, rigidity).
• Rhythmic stabilization – alternating isometric contractions without motion (increase stability & cocontraction).
• Slow reversals – concentric contraction of agonist → immediately into antagonist (improve coordination & range).

🔥 Must know: Rhythmic initiation = first choice for hypokinesia (Parkinson’s) or apraxia.
💡 Clinical Tip: Use irradiation: have patient do strong UE pull to facilitate weak LE extension.

2. VESTIBULAR SYSTEM & REHAB

O’Sullivan Ch 21, PPT

⚙️ Peripheral & Central Systems

• Peripheral: 3 semicircular canals (SCC) – detect rotational acceleration; 2 otoliths – utricle (horizontal/linear) & saccule (vertical).
• Central: vestibular nuclei, cerebellum, VOR (vestibulo‑ocular reflex) – stabilizes gaze during head movement.

🔥 Symptoms – HIGH‑YIELD DIFFERENTIATION

⚠️ Common Trap: Vertigo ≠ lightheadedness. True vertigo = vestibular pathology until proven otherwise.

🩺 Examination of Eye Movements

• Observation of nystagmus – direction, duration, fatigability.
• Head Impulse Test (HIT) – assesses high‑frequency VOR. Abnormal: corrective saccade (catch‑up) → peripheral lesion.
• Head‑Shaking Induced Nystagmus – unilateral peripheral dysfunction.
• Dynamic Visual Acuity (DVA) – drop of >3 lines during head shaking = bilateral loss.

🔄 Positional Testing & BPPV Maneuvers

• Dix‑Hallpike – diagnostic for posterior canal BPPV. Positive: upbeating & torsional nystagmus, latency, fatigable.
• Epley maneuver (canalith repositioning) – treatment for posterior canal BPPV.
• Semont maneuver – liberatory, for posterior canal (less common).
• Brandt‑Daroff exercises – habituation for chronic BPPV, home program.

💡 Clinical Tip: After Epley, advise patient to avoid lying flat for 48h, sleep semi‑reclined.

🚫 Contraindications to Vestibular Rehab

Unstable cardiac disease, severe orthostatic hypotension, active stroke, acute vertebral artery dissection, uncontrolled migraine. (O’Sullivan pg. 846)

3. CEREBROVASCULAR ACCIDENT (STROKE)

Kessler Ch 11, PPT parts 1‑3

🧬 Stroke Types & Management

• Ischemic (thrombotic/embolic) – 87% → tPA window 3‑4.5h.
• Hemorrhagic (ICH/SAH) – higher mortality, avoid anticoagulants.
• TIA – symptoms <24h, no infarction; high risk of future stroke.

📌 Stroke Syndromes (High Yield)

Pusher syndrome: pushes toward hemiparetic side, resists correction → posterior thalamus / parietal lobe.

📊 Impairments & Recovery

• Modified Ashworth Scale (spasticity): 0=no increase, 4=rigid.
• Brunnstrom Stages (motor recovery): 1=flaccid → 2=spasticity appears → 3=synergies → 4‑5=out of synergy → 6=isolated movements.
• FIM (functional independence measure) – disability level. Fugl‑Meyer – motor impairment post‑stroke.

⚠️ Common Trap: CRPS (Complex regional pain syndrome) after stroke – painful swollen hand, allodynia, treat with mirror therapy & desensitization.

🦽 Interventions (Part 3)

• Early: positioning (avoid shoulder retraction, wrist flexion), scapular mobilization, bed mobility, sit‑to‑stand with weight on affected side.
• Functional positions: affected limb in weight bearing to reduce tone.
• Gait: AFO for foot drop, stair training “up with good, down with bad”.

4. TRAUMATIC BRAIN INJURY

Kessler Ch 12

Classification & Secondary Complications

• Open vs closed – open = skull fracture, higher infection risk.
• Concussion – transient alteration, CT normal. Contusion – bruising, often frontal/temporal.
• Diffuse axonal injury (DAI) – shearing, poor prognosis.
• Epidural hematoma – lucid interval → rapid deterioration.

Secondary complications: ↑ICP, heterotopic ossification (HO), seizures, decerebrate/decorticate posturing, paroxysmal sympathetic hyperactivity (tachycardia, sweating, hypertension).

🧠 Glasgow Coma Scale (GCS)

Eye (1‑4) + Motor (1‑6) + Verbal (1‑5)
Severe TBI: ≤8, Moderate: 9‑12, Mild: 13‑15.

📋 Rancho Los Amigos Levels (Cognitive)

Level I (no response) → Level IV (confused‑agitated) → Level VIII (purposeful & appropriate).
🔥 Must know: Agitation peaks at Level IV; management: low stimulation, redirect, avoid restraint.

🔄 Intervention Focus

• Acute: positioning, ROM, multisensory stimulation, family education.
• Inpatient rehab: functional mobility, wheelchair propulsion, community re‑entry.
• Agitated Behavior Scale – monitor treatment response.

5. SPINAL CORD INJURY

Kessler Ch 13

🔢 Classification & ASIA

• Neurologic level: most caudal level with normal motor (key muscles, Table 13.1) & sensory.
• ASIA Impairment Scale: A=complete, B=sensory only, C=motor incomplete (<3/5), D=motor incomplete (≥3/5), E=normal.
• Complete vs incomplete: sacral sparing (anal contraction / deep anal pressure) = incomplete.

💡 Clinical Tip: Central cord syndrome (UE > LE weakness, sacral sparing) – often fall in elderly.

⚠️ Complications (High Yield)

• Autonomic dysreflexia – T6 or above, noxious stimulus below injury → severe hypertension, bradycardia, headache. Immediate: sit up, check bladder/bowel.
• Orthostatic hypotension – gradual upright training, abdominal binder.
• Pressure ulcers – ischium, sacrum, heels; reposition q2h.
• Heterotopic ossification (HO) – hip/knee, decreased ROM, warm swelling.

🎯 Functional Outcomes (Tables 13.4, 13.5)

• C1‑4 – dependent, power wheelchair, sip‑puff.
• C5 – elbow flexion (biceps), can eat with setup, push wheelchair on level.
• C6 – wrist extension (tenodesis grasp), independent transfers with board.
• C7‑T1 – elbow extension, grasp release, independent wheelchair & transfers.
• T6‑T12 – independent in all mobility, normal wheelchair.
• Lumbar – ambulate with orthoses (KAFO/AFO).

🔥 Must know: Tenodesis grasp (C6) – wrist extension creates passive finger flexion.

🦽 Interventions (Acute → Advanced)

• Acute: ROM, respiratory (cough, postural drainage), upright tilt table.
• Inpatient: mat activities, pressure relief, wheelchair skills, curbs.
• Advanced: ambulation with RGO, FES, aquatic therapy.

6. OTHER NEUROLOGIC DISORDERS

Kessler Ch 14 – PD, MS, ALS, GBS, PPS

🧩 Parkinson’s Disease (PD)

• Features: tremor (resting), rigidity (cogwheel), bradykinesia, postural instability, shuffling gait, freezing.
• Hoehn & Yahr staging: I=unilateral → V=wheelchair bound.
• PT interventions: rhythmic initiation (PNF), rotational activities, LSVT BIG, cueing strategies.

🧩 Multiple Sclerosis (MS)

• Relapsing‑remitting, progressive. Heat sensitivity (Uhthoff’s phenomenon), fatigue, ataxia, optic neuritis.
• Frenkel exercises: slow, repetitive movements for ataxia (supine → sitting → standing).
• Orthotics: AFO for foot drop, cooling garments.

🧩 ALS (Amyotrophic Lateral Sclerosis)

• UMN + LMN signs (hyperreflexia + atrophy/fasciculations). Progressive, fatal.
• PT: energy conservation, respiratory muscle training, mobility aids, avoid overwork weakness.

🧩 Guillain‑Barré Syndrome (GBS)

• Ascending paralysis, areflexia, albuminocytologic dissociation (CSF).
• Intervention: acute: respiratory support, passive ROM. Recovery: strengthening, desensitization for neuropathic pain.

🧩 Post‑Polio Syndrome (PPS)

• New weakness/fatigue years after polio. Non‑progressive denervation.
• PT: non‑fatiguing strengthening, energy conservation, orthotics, aquatic therapy.

⚠️ Common Trap: In PPS, avoid aggressive strengthening (may worsen weakness) – use submaximal reps.

📌 FINAL EXAM FOCUS – WHAT TO REVIEW TONIGHT

• PNF techniques & diagonal patterns (D1/D2 for UE/LE).
• Vestibular: differentiate vertigo/lightheadedness/disequilibrium, Dix‑Hallpike vs Epley.
• Stroke syndromes (ACA, MCA, PCA, vertebrobasilar) + pusher syndrome + Brunnstrom stages.
• TBI: GCS & Rancho levels, paroxysmal sympathetic hyperactivity.
• SCI: ASIA classification, autonomic dysreflexia (triggers, immediate action), functional levels (C5, C6, C7).
• PD (Hoehn & Yahr), MS (Frenkel exercises), ALS vs GBS vs PPS comparisons.

🔥 Must know table: Which PNF technique for which problem? Rhythmic initiation = Parkinson’s/bradykinesia; rhythmic stabilization = joint instability; slow reversals = coordination deficits.

💡 Final tip: Read each question twice. Look for “most likely”, “first”, “contraindication”. Use the impairment → functional limitation → intervention link.

Review generated from Kessler Ch 10‑14, O’Sullivan Ch 21, NPTE pages & PPTs. All information aligned with your course materials.

🧠 PTA 251 NEURO FINAL – FULL DEEP-DIVE REVIEWER

Use this like a tutoring session, not a skim sheet.

This reviewer is built to explain the “what,” “why,” “how,” and “when” for the topics listed in your study guide.

🧠 HOW TO USE THIS REVIEWER

• First pass: Understand the concept in plain language.
• Second pass: Memorize the tables and comparisons.
• Third pass: Ask yourself, “If this showed up in a question, what would be the best answer and why?”

🧠 CHAPTER 10 – PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION (PNF)

📖 What PNF actually is

PNF is a treatment approach used in neurorehabilitation to improve movement by giving the nervous system the “right kind” of sensory input.

Simple version: If the body is moving poorly, slowly, stiffly, or with bad timing, PNF uses touch, stretch, resistance, and specific movement patterns to help the patient move more normally and more functionally.

PNF is used to improve functional tasks by helping with strength, flexibility, range of motion, balance, gait, movement initiation, head and trunk control, and control of the center of gravity during movement.

🧠 Core idea behind PNF

PNF is not just “doing diagonals.” The real point is to improve functional movement.

That means:

• Not just making a limb stronger.
• Not just making a patient move through a pattern.
• But helping the patient sit better, roll better, transfer better, stand better, and walk better.

PNF also fits motor learning. The patient learns movement through repetition, sensory cueing, timing, and functional context.

📚 Basic Principles of PNF

1. Manual contacts

This means where the therapist places the hands.

Why it matters: Your hands tell the patient where to move, what direction to move, and which muscles should turn on.

Clinical meaning: Good hand placement improves muscle activation. Bad hand placement confuses the patient.

2. Body position and body mechanics

This refers to how the therapist stands and moves during treatment.

Why it matters: If the therapist is in a poor position, resistance will be awkward, movement cueing will be off, and the patient may compensate.

Exam thinking: Good mechanics improve efficiency and safety for both patient and therapist.

3. Stretch

A quick stretch can help facilitate muscle contraction.

Why it matters: It helps initiate movement in muscles that are slow to respond.

Use it for: movement initiation, especially when the patient is sluggish or has trouble “getting going.”

4. Manual resistance

This is therapist-applied resistance to movement.

Why it matters: Resistance is not only for strength. In PNF, it also improves awareness, control, timing, and coordination.

Common trap: Resistance does not mean “make it as hard as possible.” Too much resistance ruins the pattern.

5. Irradiation / overflow

This is spread of muscle activity from stronger muscles to weaker muscles.

Why it matters: This is huge in neuro rehab. If one area is weak, you can sometimes activate it better by using a stronger related area.

Simple version: Strong muscles “wake up” weaker muscles.

6. Traction

Traction is a gentle pull along a limb or body segment.

Main effect: facilitates movement.

Think: “Let’s move.”

7. Approximation

Approximation is gentle compression through a joint or body segment.

Main effect: facilitates stability and co-contraction.

Think: “Hold steady.”

8. Timing of movement

This means the sequence and pacing of muscle activation.

Why it matters: Many neuro patients do not just have weakness. They have bad timing. Muscles fire too late, too early, or in the wrong order.

9. Patterns of movement

PNF uses diagonal, spiral movement patterns because real life does not happen in straight lines.

Simple version: Human movement is rotary and diagonal, not just pure flexion and extension.

10. Visual cues

Having the patient look at the moving limb can improve performance.

Why it matters: Vision increases attention and motor learning.

11. Verbal input

Clear commands guide the movement.

Examples: “Pull up.” “Push down.” “Hold.” “Look at your hand.”

Why it matters: Good commands improve timing, attention, and motor output.

🔥 PNF Principles Summary Table

📐 PNF Diagonal Patterns

Upper Extremity Patterns

UE D1 Flexion

Pattern: flexion + adduction + external rotation

Hand/forearm usually go toward: hand moves up and across the body

Functional example: bringing a spoon to the mouth, buckling a seatbelt, touching the opposite shoulder

UE D1 Extension

Pattern: extension + abduction + internal rotation

Functional example: pushing something down and away, reaching back to place an arm at the side

UE D2 Flexion

Pattern: flexion + abduction + external rotation

Functional example: drawing a sword, reaching up and out, grabbing something from a high shelf

UE D2 Extension

Pattern: extension + adduction + internal rotation

Functional example: putting a sword back in the sheath, pulling down across the body

Scapular Patterns

Lower Extremity Patterns

LE D1 Flexion

Pattern: flexion + adduction + external rotation

Functional example: bringing the leg up to cross it, stepping forward, placing foot onto opposite knee area

LE D1 Extension

Pattern: extension + abduction + internal rotation

Functional example: pushing off during gait, moving the leg back and out

LE D2 Flexion

Pattern: flexion + abduction + internal rotation

Functional example: getting out of a car, stepping over something, moving leg out to the side

LE D2 Extension

Pattern: extension + adduction + external rotation

Functional example: returning the leg inward/downward

Pelvic Patterns

Exam tip: They may not ask “What is UE D2 flexion?” They may ask a functional description like “Which pattern helps reaching up and out?”

🛠️ PNF Techniques

Rhythmic initiation

This starts with passive movement, then active-assistive, then active, then resisted movement.

Best for: difficulty initiating movement, rigidity, fear of movement, stiffness, Parkinson-like bradykinesia.

Simple version: “Let me show you the motion, then help you do it, then you do it, then resist it.”

Agonistic reversals

This uses concentric, then stabilizing, then eccentric control of the same muscle group.

Best for: controlled functional movement like bridging, sit-to-stand, lowering with control.

Why it matters: Many patients can move up but cannot control the descent.

Alternating isometrics

This applies resistance in one direction, then another, without allowing movement.

Best for: holding posture, trunk stability, proximal control.

Simple version: “Don’t let me move you.”

Rhythmic stabilization

Alternating resistance is applied in multiple directions, and the patient resists without moving.

Best for: postural control, trunk stabilization, joint stability, balance.

Difference from alternating isometrics: more emphasis on rotational control and deeper stabilization.

Slow reversals

This alternates movement in opposite directions, usually with no relaxation between directions.

Best for: coordinated movement through range, functional alternating patterns.

Simple version: “Now pull. Now push. Keep going.”

📊 Which PNF technique fits which impairment?

🧠 Developmental sequence in PNF

PNF can be used within the developmental sequence because rehab often rebuilds movement from easier to harder postures.

Supine progression: supine → hook-lying → side-lying → propping on elbow → pushing to hand → sitting → standing

Prone progression: prone → prone on elbows → quadruped → kneeling → half-kneeling → standing

Why this matters: You can use easier postures first when the patient cannot yet control harder ones.

Example: If the patient cannot control the trunk well in standing, you may train pelvic control and trunk stability first in hook-lying, bridging, quadruped, or kneeling.

⚠️ PNF Common traps

• Do not memorize patterns without knowing the functional meaning.
• Do not think resistance is only for strengthening.
• Do not forget PNF is about timing, coordination, and functional control too.
• Do not force movement so hard that the patient substitutes.

🧠 VESTIBULAR SYSTEM (O’SULLIVAN CH 21 TOPICS FROM YOUR GUIDE)

📖 Peripheral Vestibular System

The peripheral vestibular system detects head motion and head position.

Main parts

• 3 semicircular canals: detect angular or rotational head movement.
• 2 otolith organs: utricle and saccule. These detect linear acceleration and head position relative to gravity.

Simple version: The semicircular canals tell you that your head is turning. The otoliths tell you that your head is moving linearly or tilting relative to gravity.

📖 Central Vestibular System

The central vestibular system processes vestibular information inside the brain and brainstem and helps coordinate posture, balance, and eye movement.

Main job: take vestibular information and combine it with visual and somatosensory information so the body can stay upright and the eyes can stay focused.

👀 Vestibulo-ocular reflex (VOR)

The VOR keeps the eyes stable while the head moves.

Example: If you shake your head “no” while staring at a word, your eyes should stay locked on the word. That is VOR doing its job.

If VOR is impaired: the patient may report blurred vision or bouncing vision with head movement.

📊 Important symptom differences

Exam trap: Do not call every dizziness complaint “vertigo.” The wording matters.

👁️ Examining eye movements

Observation of nystagmus

Nystagmus is involuntary rhythmic eye movement.

Why it matters: It can suggest peripheral or central vestibular involvement depending on pattern and context.

Head Impulse Test

This tests the VOR and helps assess semicircular canal function.

How it works: The therapist rapidly turns the patient’s head while the patient tries to maintain gaze on a target.

Abnormal finding: corrective saccade, meaning the eyes could not stay on target and had to “jump back.”

Head-Shaking Induced Nystagmus

This can help identify unilateral peripheral vestibular dysfunction.

Dynamic Visual Acuity Test

This checks whether visual clarity worsens when the head moves.

If visual acuity drops with head movement: suspect VOR impairment.

🌀 BPPV (Benign Paroxysmal Positional Vertigo)

What it is

BPPV is a positional vertigo caused by otoconia moving where they should not be, usually into a semicircular canal.

Simple version: Tiny crystals are in the wrong place and confuse the balance system when the head changes position.

Why the symptoms happen

When the patient lies back, rolls, bends over, or changes head position, the misplaced crystals shift. That creates abnormal fluid movement in the canal and makes the brain think the head is spinning more than it actually is.

Classic complaints

• Vertigo with rolling in bed
• Vertigo looking up
• Vertigo lying back
• Brief episodes tied to position changes

🧪 Positional Tests and Treatments for BPPV

Dix-Hallpike

This is the classic positional test for posterior canal BPPV.

Positive finding: provoked vertigo and characteristic nystagmus.

Epley maneuver (Canalith repositioning maneuver)

This is used to move the crystals out of the canal and back where they belong.

Exam tip: Positive Dix-Hallpike for BPPV → think Epley.

Semont maneuver

Another repositioning maneuver used for BPPV.

Brandt-Daroff exercises

These are repeated positional exercises often used as a home program.

⛔ Contraindications to vestibular rehab

Your guide says to know contraindications, so what the exam usually wants here is the idea that vestibular testing or maneuvers may be inappropriate or need caution when the patient has serious cervical, vascular, or medical issues that make rapid positional testing unsafe.

Exam thinking: if neck movement or quick positional changes are unsafe, be cautious with vestibular testing and repositioning maneuvers.

⚠️ Vestibular common traps

• Vertigo is spinning. It is not the same as lightheadedness.
• BPPV is positional and brief. That clue matters.
• Positive Dix-Hallpike points you toward repositioning treatment, not strengthening or general gait training first.
• Oscillopsia points you toward VOR trouble.

🧠 CHAPTER 11 – STROKE (CVA)

📖 What a stroke is

A stroke is a sudden neurologic injury caused either by blocked blood flow or by bleeding in the brain.

Simple version: brain tissue is injured because oxygen and nutrients are interrupted or because blood leaks into tissue.

📊 Types of stroke

Exam shortcut: ischemic = blockage, hemorrhagic = bleed, TIA = temporary warning event.

🧠 Stroke recovery, management, prevention

The study guide wants you to know medical management, recovery, and prevention. For exam purposes, think in three phases:

1. Acute medical management

• Stabilize the patient.
• Determine if stroke is ischemic or hemorrhagic.
• Protect airway, breathing, circulation.
• Prevent complications.

2. Recovery phase

• Early mobilization when medically safe.
• Manage tone, alignment, positioning, ROM, and functional mobility.
• Begin task-specific retraining.

3. Prevention

• Address risk factors.
• Improve activity and mobility level.
• Support long-term safe function.

🗺️ Stroke syndromes

Anterior Cerebral Artery (ACA)

ACA strokes classically affect the lower extremity more than the upper extremity.

Think: medial frontal/parietal areas = more leg representation.

Middle Cerebral Artery (MCA)

MCA strokes are the most common and often affect face and upper extremity more than the lower extremity.

If left MCA: aphasia is common.

If right MCA: neglect and poor awareness are more common.

Posterior Cerebral Artery (PCA)

PCA strokes are more associated with visual problems.

Vertebrobasilar artery syndrome

This involves posterior circulation and may affect brainstem/cerebellar structures, leading to dizziness, balance problems, cranial nerve signs, coordination issues, and serious medical concerns.

Lacunar infarcts

These are small deep infarcts, often affecting internal capsule or deep structures.

Clinical importance: can still produce major motor or sensory deficits despite being “small.”

Left hemisphere stroke

• Aphasia more likely
• More cautious / aware behavior often described
• May have apraxia

Right hemisphere stroke

• Neglect more likely
• Poor insight / poor safety awareness
• Impulsivity more likely

Thalamic pain syndrome

Central post-stroke pain caused by thalamic involvement.

Important idea: sensory pathways are disrupted, and the patient may experience painful sensations that do not match the physical exam.

Pusher syndrome

The patient actively pushes toward the affected side or resists upright midline orientation because the perception of vertical is impaired.

Why it matters: This is not simply weakness. It is a disorder of postural perception.

🧠 Other lesion locations

Brainstem lesions

These can produce severe findings because the brainstem contains cranial nerve nuclei, important motor/sensory pathways, and vital autonomic centers.

Cerebellar lesions

These produce coordination, timing, and balance problems rather than classic hemiplegic weakness patterns.

Think: ataxia, dysmetria, poor balance, poor movement accuracy.

🧩 Common stroke impairments

Motor impairments

• Weakness
• Loss of selective control
• Synergy-dominated movement
• Spasticity
• Poor postural control

Sensory impairments

• Light touch loss
• Proprioception loss
• Neglect / inattention

Cognitive and perceptual impairments

• Aphasia
• Apraxia
• Poor safety awareness
• Poor problem solving

Functional impairments

• Bed mobility problems
• Transfer dependence
• Sitting and standing balance problems
• Gait deviations

📏 Modified Ashworth Scale (MAS)

This measures spasticity, meaning resistance to passive movement due to increased tone.

Exam trap: Spasticity is not the same as rigidity. MAS is for spasticity.

📈 Brunnstrom Stages of Motor Recovery

This describes typical motor recovery after stroke.

Big idea: Early recovery is dominated by flaccidity and then synergy/spasticity. Later recovery is about breaking out of synergy and regaining selective control.

⚠️ Stroke complications

CRPS (Complex Regional Pain Syndrome)

Painful, swollen, hypersensitive extremity, often the UE.

Why it matters: Delayed shoulder/hand management can lead to major pain and functional loss.

Abnormal posturing and positioning

Poor positioning can worsen tone, pain, edema, contracture risk, skin issues, and shoulder injury.

📋 FIM and Fugl-Meyer

FIM Instrument

Measures overall functional independence in activities such as mobility, self-care, and cognition.

Simple version: “How much help does the patient need?”

Fugl-Meyer Assessment

Assesses motor recovery, especially after stroke.

Simple version: “How much motor control has come back?”

🛏️ Early stroke interventions

Cardiopulmonary retraining

Stroke patients often decondition quickly. Early respiratory and endurance-related work helps prevent secondary decline.

Positioning

Used to:

• protect the shoulder
• maintain alignment
• reduce abnormal tone
• prevent skin breakdown
• reduce edema

Minimizing abnormal tone

Promote alignment, slow movement, trunk control, scapular mobility, and functional weight bearing.

Mobility tasks

Bed mobility, rolling, supine to sit, scooting, transfers.

Why early: if you wait too long, the patient gets weaker, stiffer, and less confident.

Scapular mobilization

Very important because the shoulder complex is vulnerable after stroke. Poor scapular mechanics can contribute to pain and subluxation problems.

🪑 Functional positions and later stroke training

Sitting

Train upright alignment, midline orientation, trunk control, reaching, and weight shift.

Sit-to-stand

Requires:

• forward weight shift
• trunk control
• lower extremity force production
• timing

Standing

Focus on symmetry, weight bearing, alignment, balance reactions, and prevention of knee hyperextension or collapse.

Pre-gait

Weight shift, stepping in place, stance control, pelvis/trunk alignment, limb advancement practice.

Balance

Train static and dynamic balance with emphasis on functional use, not just standing there looking heroic.

🚶 Ambulation, assistive devices, orthoses, stairs, home

Ambulation

Goal is efficient, safe, functional gait. Not just “make them walk somehow.”

Assistive devices

Selected to improve safety and independence.

Orthoses

Often used to improve ankle-foot control, toe clearance, stability, and efficiency.

Stair training

Requires strength, timing, balance, attention, and sequencing.

Home environment

Must match the patient’s actual ability. This is where bad clinical judgment can turn into falls.

⚠️ Stroke common traps

• MCA is the big one. Face and arm are more affected than leg.
• ACA is more leg.
• Right hemisphere = neglect / poor safety awareness more likely.
• Left hemisphere = language problems more likely.
• Protect the shoulder early.
• Do not confuse pusher syndrome with just weakness.

🧠 CHAPTER 12 – TRAUMATIC BRAIN INJURY (TBI)

📖 What TBI is

TBI is brain damage caused by external force.

Simple version: the brain gets injured because the head is hit, moves violently, or is penetrated, and then motor, cognitive, sensory, behavioral, and communication problems may follow.

📊 Classification of TBI

Open vs closed

• Open TBI: skull and dura are penetrated.
• Closed TBI: no penetrating opening; the brain is injured inside the skull.

Concussion

A mild TBI involving transient neurologic disruption.

Contusion

A bruise to brain tissue.

Hematomas

Collections of blood that can compress brain tissue and worsen prognosis depending on size and location.

Axonal / diffuse injury

Diffuse axonal injury means widespread shearing damage to axons from rapid acceleration-deceleration forces.

Acquired brain injury

This is broader and includes brain injuries not present at birth. In your guide, know that TBI is one major acquired brain injury type.

⚠️ Secondary complications of TBI

ICP (Increased intracranial pressure)

Rising pressure inside the skull threatens brain tissue and perfusion.

Why it matters: this is medically serious and can worsen brain injury quickly.

HO (Heterotopic ossification)

Abnormal bone formation in soft tissue around joints.

Why it matters: causes pain, stiffness, loss of ROM, and functional problems.

Seizures

Abnormal electrical activity that may occur after brain injury.

Decerebrate vs decorticate posturing

These are abnormal postures associated with severe brain injury.

Paroxysmal sympathetic hyperactivity

Episodic sympathetic overactivity after severe TBI.

Clinical clue: autonomic storming-type presentation.

CSF leak

Cerebrospinal fluid leakage suggests breach in the protective system around the brain.

📏 Glasgow Coma Scale (GCS)

Measures level of consciousness based on eye opening, verbal response, and motor response.

Total score: 3 to 15

Exam shortcut: 3 is worst, 15 is best.

🧩 Problem areas in TBI

Decreased consciousness

The patient may be comatose, minimally responsive, confused, or inconsistently alert.

Cognitive deficits

• attention problems
• memory deficits
• poor problem solving
• poor initiation

Motor deficits

• abnormal tone
• weakness
• poor balance
• poor coordination

Sensory deficits

Visual, vestibular, somatosensory, and perceptual problems may all be present.

Communication deficits

Speech/language or expressive/receptive difficulties may occur.

Behavioral deficits

• agitation
• impulsivity
• poor judgment
• poor safety awareness

Exam trap: not all unsafe behavior is a “motor problem.” A lot of it is cognitive/behavioral.

🏥 Acute care interventions for TBI

Positioning

Used to protect joints, reduce pressure, prevent contractures, help arousal, and support breathing/alignment.

Awareness and arousal

Therapy may aim to improve responsiveness to the environment.

Transitions

Gradual position changes help with orientation and medical tolerance.

Stimulation

Used carefully and purposefully, not randomly blasting the patient with noise and chaos.

Cognitive functioning

Even in early stages, therapy is not “just physical.” Commands, attention, orientation, and response consistency matter.

Patient and family education

Very important because TBI recovery is often long, uneven, and emotionally intense.

🧠 Level of Cognitive Functioning (Rancho-type thinking)

Your guide points to the level of cognitive functioning table. The big exam idea is that TBI patients do not all learn or respond the same way. Intervention must match current cognitive level.

Simple version:

• low levels = arousal / response / basic tolerance
• middle confused levels = structure, consistency, safety
• higher levels = problem solving, functional independence, community reintegration

🏥 Inpatient rehab interventions for TBI

Positioning and ROM

Prevent secondary complications like contracture, pain, skin breakdown, and poor alignment.

Wheelchair propulsion

May be used for mobility, endurance, bilateral coordination, and independence if safe.

Awareness

Body awareness, spatial awareness, and environmental awareness are often impaired.

Family education

Critical because family often becomes part of the treatment environment and safety system.

Functional mobility training

• Sitting
• Standing
• Transfers
• Navigation of environment

Big idea: TBI rehab is always physical + cognitive + behavioral at the same time.

😵 Agitated Behavior Scale concept

Your guide says to know the Agitated Behavior Scale table. The major test idea is that agitation after TBI is measured and tracked, and that severe agitation affects safety, participation, and the kind of treatment environment you choose.

Clinical reasoning: If the patient is highly agitated, the “best treatment” is not the fanciest gait drill. It is often safety, structure, pacing, cueing, and environmental control first.

⚠️ TBI common traps

• Motor recovery is not the only issue. Cognition and behavior drive safety and function.
• Do not forget secondary complications like ICP and HO.
• GCS measures consciousness, not overall long-term function.
• Agitation changes treatment choices.

🧠 CHAPTER 13 – SPINAL CORD INJURY (SCI)

📖 Naming the spinal level / ASIA basics

The neurologic level of injury is the most caudal intact level of motor and sensory function.

Big idea: SCI classification is not just “where the vertebra broke.” It is about neurologic function.

📊 ASIA key muscles

Exam shortcut: C6 = wrist extension = tenodesis grasp. C7 = triceps = better transfers.

🩻 Mechanism of injury

Mechanism matters because it helps you predict the lesion pattern and precautions.

Common mechanisms include flexion, extension, compression, and rotational injuries.

📊 Complete vs incomplete lesions

Complete SCI

No motor or sensory function preserved below the injury level, including sacral segments.

Incomplete SCI

Some motor and/or sensory function is preserved below the injury level.

Big exam idea: incomplete injuries generally have better recovery potential than complete injuries.

⚠️ SCI complications

Pressure ulcers

Caused by prolonged pressure, impaired sensation, immobility, and moisture/friction issues.

Why it matters: prevention is huge because wounds can derail rehab completely.

Autonomic dysreflexia

Potentially life-threatening hypertensive emergency, usually in patients with lesions at or above T6.

Classic signs: pounding headache, hypertension, sweating/flushing above lesion, bradycardia, goosebumps, blurry vision.

Immediate action: sit the patient up and look for the noxious stimulus.

Exam pearl: this is an emergency.

Orthostatic hypotension

Drop in blood pressure with upright position.

Why common in SCI: impaired autonomic control + venous pooling + reduced muscle pump.

Management concepts: gradual upright acclimation, binder, compression stockings, monitoring.

Pain

Can be musculoskeletal, neuropathic, or overuse related.

Contractures

Develop from immobility, poor positioning, and spasticity.

HO

Heterotopic ossification around joints can limit ROM and function.

DVT

Risk increases with immobility.

Bowel and bladder dysfunction

Common because spinal pathways controlling elimination are disrupted.

Sexual dysfunction

Important topic because quality of life and counseling matter, not just mobility.

🏁 Functional outcomes and potentials

Your guide says to know key muscles and functional potential. That means the exam may ask:

• “What can this level typically do?”
• “Which level is more likely to transfer independently?”
• “Who is most likely to benefit from tenodesis grasp?”

Big level logic:

• Higher cervical = more dependence
• C6 = possible tenodesis grasp
• C7 = major jump in transfer ability because of triceps
• Lower thoracic/lumbar = better standing/walking potential depending on completeness

🛏️ Acute SCI interventions

Prevent contractures

Use ROM, positioning, splinting when appropriate, and avoid bad posture habits early.

Improve muscle and respiratory function

Especially important in cervical and upper thoracic injuries.

Postural drainage and cough

Respiratory management matters because secretion clearance may be impaired.

ROM

Maintain mobility but protect structures and follow precautions.

Tenodesis

Protect natural tenodesis in patients who rely on wrist extension to create passive finger flexion.

Exam trap: do not aggressively stretch fingers/wrist in a way that destroys useful tenodesis in the wrong patient.

Acclimation to upright

Gradual tolerance to sitting/standing reduces orthostatic issues.

🧩 Inpatient SCI interventions

Early interventions

• Mat activities
• Bed mobility
• Transfer training

Intermediate interventions

• Advanced mat skills
• Transfer progression
• Independent self-ROM
• Wheelchair assessment and mobility

Advanced interventions

• Wheelchair skills
• Curb negotiation
• Ambulation and orthoses when appropriate
• Gait training
• Cardiopulmonary training
• Circuit training
• Aquatic therapy

Big idea: rehab progression moves from protection and basic mobility to advanced independence and community skills.

⚠️ SCI common traps

• AD = sit up immediately.
• Orthostatic hypotension is the opposite blood pressure problem from AD.
• C6 is important because of tenodesis.
• C7 is important because triceps improve transfers.
• Do not destroy functional tenodesis.

🧠 CHAPTER 14 – OTHER NEUROLOGIC DISORDERS

1. Parkinson Disease (PD)

Etiology

PD is a basal ganglia disorder associated with loss of dopamine-producing neurons.

Clinical features

• Bradykinesia
• Rigidity
• Tremor
• Postural instability
• Shuffling gait
• Reduced arm swing
• Difficulty initiating movement

Simple version: movement becomes small, slow, stiff, and hard to start.

Medical management

Usually medication-based, aiming to improve dopamine-related function.

Hoehn and Yahr staging

This stages disease severity and helps frame PT decisions.

PT interventions

• large-amplitude movement training
• gait training
• cueing
• balance training
• postural training
• rotational activities

Why rotational activities? PD patients often become rigid and en bloc, so rotation helps break up that stiff movement pattern.

2. Multiple Sclerosis (MS)

Etiology

MS is a demyelinating disease of the central nervous system.

Clinical features

• fatigue
• weakness
• balance problems
• visual issues
• sensation changes
• ataxia

Medical management

Aims to reduce disease activity and manage symptoms.

PT interventions

• energy conservation
• strength and mobility training
• balance training
• gait training
• orthotic support when needed
• Frenkel exercises when coordination is a major issue

Frenkel exercises

These are slow, repetitive, visually guided coordination exercises often used for ataxia-like movement problems.

Exam tip: MS patients often need pacing because fatigue is a huge limiter.

3. ALS (Amyotrophic Lateral Sclerosis)

Etiology

Progressive motor neuron disease affecting upper and lower motor neurons.

Clinical features

• progressive weakness
• muscle wasting
• functional decline
• eventual respiratory compromise

Medical management

Supportive and disease-slowing where possible.

PT interventions

• energy conservation
• safe mobility
• positioning
• equipment recommendations
• preserve function without overfatiguing

Big idea: this is not about aggressive strengthening into exhaustion. It is about preserving safe function.

4. Guillain-Barré Syndrome (GBS)

Etiology

Acute peripheral demyelinating disorder, often after illness.

Clinical features

• ascending weakness
• reduced reflexes
• possible respiratory involvement

Ascending weakness means: it starts lower and moves upward.

Medical management

Acute medical support is very important, especially breathing monitoring.

PT interventions

• ROM
• positioning
• gradual strengthening and mobility as tolerated
• monitor fatigue carefully

Exam clue: GBS is peripheral, acute, and ascending.

5. Post-Polio Syndrome (PPS)

Etiology

Late functional decline occurring years after prior polio.

Clinical features

• new weakness
• fatigue
• pain
• cold intolerance

Medical management

Mainly symptom management and function preservation.

PT interventions

• energy conservation
• activity pacing
• avoid overuse
• assistive device needs
• functional strengthening only when appropriate and not fatiguing

Big idea: PPS patients often get worse with overwork, so “push harder” is not the move.

📊 Quick comparison table for Chapter 14

🔥 FINAL BOSS EXAM THINKING

1. Learn the “trigger words”

• Positive Dix-Hallpike → think BPPV → think Epley
• SCI above T6 + headache + hypertension → think autonomic dysreflexia → sit up
• Face and arm more than leg → think MCA
• Leg more than arm → think ACA
• C6 → think wrist extension → think tenodesis
• Parkinson rigidity / hard to start movement → think rhythmic initiation or cueing-style facilitation ideas
• Ascending weakness → think GBS

2. Always ask: what is the biggest problem?

Is it strength? tone? timing? perception? cognition? safety? endurance? initiation?

The best answer is usually the one that matches the real limiting problem.

3. Safety comes before fancy treatment

• AD before gait training
• orthostatic hypotension before standing drills
• agitation before advanced mobility
• shoulder protection before aggressive UE work post-stroke

4. Function beats random exercise

If the patient needs to transfer, roll, sit, stand, and walk, the best intervention is usually the one that most directly improves that function.

💥 LAST-MINUTE MUST-KNOW LIST

• Traction = movement. Approximation = stability.
• Rhythmic initiation = difficulty initiating movement / rigidity.
• MCA = face/arm more than leg.
• ACA = leg more than arm.
• Right hemisphere = neglect / poor safety awareness more likely.
• Left hemisphere = aphasia more likely.
• MAS measures spasticity.
• Brunnstrom stage 1 = flaccid; stage 3 = peak spasticity; stage 6 = near normal.
• Positive Dix-Hallpike = BPPV = Epley.
• Oscillopsia = bouncing vision with head movement.
• GCS = Eye + Verbal + Motor; 3 worst, 15 best.
• SCI above T6 + headache/hypertension = autonomic dysreflexia.
• C6 = tenodesis grasp potential.
• C7 = triceps = better transfers.
• PD = bradykinesia + rigidity.
• MS = demyelination + fatigue matters a lot.
• GBS = ascending weakness.
• PPS = do not overwork them.

🧠 NEURO FINAL – COMPLETE ELABORATED REVIEW

Source: Kessler Ch 10–14, O’Sullivan Ch 21, NPTE pages, PowerPoints.
Every term explained • Mechanisms broken down • Clinical reasoning chains • NPTE-style focus

1. PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION (PNF)

Kessler Ch 10, NPTE 261‑268, PPT Ch 10

🔬 What is PNF? – The Big Idea

Simple explanation: PNF uses spiral and diagonal movement patterns, combined with specific techniques (stretch, resistance, verbal cues) to facilitate (make easier/stronger) a muscle contraction. It's based on the idea that most functional movements (throwing, walking, reaching) are diagonal and rotational, not straight.

Mechanism: By applying quick stretch, you excite muscle spindles → triggers a reflexive contraction (stretch reflex). By adding manual resistance, you increase motor unit recruitment (Henneman's size principle) and cause irradiation – neural overflow from strong muscles to weaker synergists.

🔑 Principles of PNF – Elaborated

• Manual contacts: Therapist's hands provide pressure and direction. Why it matters: Pressure on skin stimulates mechanoreceptors, guiding the patient's effort. Example: palmar contact on anterior shoulder to facilitate flexion.
• Body position & mechanics: Therapist aligns with the line of pull. Clinical tip: Use lunge position, keep elbows soft, move with patient to avoid injury.
• Stretch (stretch reflex): A quick, brief stretch at the beginning of range. Mechanism: Activates muscle spindles (Ia afferents) → monosynaptic reflex → contraction of stretched muscle. Example: Quick stretch of wrist extensors to facilitate grasp release.
• Manual resistance: Smooth, graded resistance that matches patient's force. Why: Resistance increases efferent output (alpha motor neurons) and recruits more motor units.
• Irradiation / overflow: Strong contraction of one muscle group spreads to adjacent or synergistic muscles. Mechanism: Neural impulses from a large motor pool activate nearby pools via interneurons. Example: Ask patient to strongly grip your hand (UE flexion) → overflow to weak elbow flexors.
• Traction & approximation: Traction (pulling joint surfaces apart) facilitates movement; approximation (compressing joint surfaces) facilitates stability. Why: Traction stimulates joint mechanoreceptors that allow motion; approximation stimulates receptors that promote cocontraction.
• Timing of movement: Normal timing is distal → proximal (fingers move before shoulder). Timing for emphasis: Reverse order to strengthen a weak component. Example: Emphasize shoulder flexion first if that's the deficit.
• Patterns of movement: Diagonal (D1, D2) and spiral. Why diagonal? Most ADLs (eating, combing hair, kicking a ball) use diagonal motions.
• Visual cues: Patient watches the movement. Mechanism: Activates mirror neurons and visual feedback loops for motor learning.
• Verbal input: Short, specific commands ("Pull", "Push"). Timing: Just before the effort. Avoid "good" or "try harder".

🧩 Diagonal Patterns – D1 & D2 (with Anatomical Reasoning)

Simple explanation: Each diagonal pattern has a flexion component (bringing limb toward face/trunk) and an extension component (away). The patterns combine three motions: flexion/extension, adduction/abduction, and rotation.

Scapular & pelvic patterns: Superior/anterior (elevation + protraction) vs inferior/posterior (depression + retraction). These are foundational for UE/LE patterns.

⚡ PNF Techniques – When & Why

• Agonistic reversals: Concentric contraction of agonist → immediately into eccentric contraction of same muscle. Mechanism: Eccentric loading improves motor control and deceleration. Use for: Improving controlled lowering (e.g., sitting down).
• Alternating isometrics: Isometric hold against resistance, alternating agonists and antagonists. Mechanism: Reciprocal inhibition is blocked, so both sides cocontract → stability. Use for: Joint instability, post-injury.
• Rhythmic initiation: Passive → active‑assist → active → resisted. Mechanism: Reduces tone, overcomes bradykinesia, builds momentum. 🔥 Must know: First‑line for Parkinson's disease (akinesia) and apraxia.
• Rhythmic stabilization: Alternating isometric contractions without joint motion. Mechanism: Increases cocontraction around a joint → stability. Use for: Ataxia, proximal joint weakness.
• Slow reversals: Concentric contraction of agonist → immediately into concentric contraction of antagonist (no rest). Mechanism: Reciprocal inhibition and successive induction (antagonist becomes facilitated). Use for: Improving range and coordination.

💡 Clinical reasoning chain: Patient with hemiplegia has weak elbow extension → Use slow reversals with UE D2 extension (triceps) → overflow irradiation → stronger extension.

2. VESTIBULAR SYSTEM & REHAB

O’Sullivan Ch 21, PPT

⚙️ Peripheral Vestibular System – The Mechanics of Balance

Simple explanation: Your inner ear has motion sensors. Three semicircular canals (SCC) detect rotation (like turning your head). Two otolith organs (utricle and saccule) detect linear motion (like riding in a car) and gravity (head tilt).

• Semicircular canals (anterior, posterior, horizontal): Filled with endolymph. When you rotate your head, endolymph lags behind, bending the cupula (hair cells). This sends a signal to the brain: "I'm turning left." Mechanism: Each canal works in a push‑pull pair with the opposite ear.
• Utricle: Detects horizontal linear acceleration (forward/backward, side‑to‑side) and head tilt relative to gravity. Contains otoconia (calcium carbonate crystals).
• Saccule: Detects vertical linear acceleration (elevator going up/down).

Central Vestibular System: Vestibular nuclei (brainstem) integrate input from peripheral system, vision, and proprioception. They generate the Vestibuloocular reflex (VOR) – stabilizes gaze during head movement.

VOR mechanism (elaborated): Head turns right → right horizontal SCC fires → signal to right vestibular nucleus → projects to left abducens nucleus (CN VI) → left lateral rectus contracts → eyes turn left → you keep looking at the same target. Latency: ~15ms – faster than vision! Why it matters: Without VOR, you can't read a street sign while walking.

🔥 Symptom Differentiation – High Yield

⚠️ Common Trap: A patient says "dizzy" – you must differentiate true vertigo (vestibular) from lightheadedness (cardiovascular). Ask: "Do you feel like you're spinning?"

🩺 Examination Tests – What They Measure

• Head Impulse Test (HIT): Patient fixates on your nose, you quickly turn their head ~15° to one side. Normal: eyes stay on target (VOR intact). Abnormal: corrective saccade (catch‑up) → peripheral vestibular deficit on that side.
• Head‑Shaking Induced Nystagmus: Shake head horizontally for 20 seconds, then observe eyes. Abnormal: nystagmus beats toward the healthy ear → unilateral peripheral loss.
• Dynamic Visual Acuity (DVA): Read eye chart with head still, then while shaking head. Abnormal: drop of >3 lines → bilateral VOR loss.

🔄 BPPV – Mechanism & Maneuvers

What is BPPV? (Benign Paroxysmal Positional Vertigo) – Otoconia (crystals) from the utricle dislodge and float into a semicircular canal (usually posterior canal). When you change head position, the crystals move like a snow globe, dragging endolymph and falsely activating the canal → vertigo and nystagmus.

• Dix‑Hallpike (diagnostic): Sit patient, turn head 45° to one side, rapidly lie them back with head hanging 20° below horizontal. Positive: Upbeating + torsional nystagmus after 5‑15 sec latency, fatigues with repetition → posterior canal BPPV.
• Epley maneuver (treatment): Canalith repositioning – move head through a series of positions to guide otoconia out of the posterior canal back into utricle. Post‑Epley instructions: Sleep semi‑reclined for 48h, avoid laying flat or rapid head movements.
• Semont maneuver: Liberatory – rapid movement from one side to the other. Less commonly used but effective for posterior canal.
• Brandt‑Daroff exercises: Habituation – repeated positional changes at home for chronic BPPV. Less effective than Epley but safe for self‑administration.

💡 Clinical reasoning chain: Patient reports brief spinning when rolling over in bed → Dix‑Hallpike positive for right posterior canal → perform Epley → symptoms resolve.

🚫 Contraindications to Vestibular Rehab (O'Sullivan pg. 846)

Unstable cardiac arrhythmia, severe orthostatic hypotension (systolic drop >30 mmHg), active stroke or TIA within 3 months, acute vertebral artery dissection (cervical manipulation contraindicated), uncontrolled migraine with aura.

3. CEREBROVASCULAR ACCIDENT (STROKE)

Kessler Ch 11, PPT parts 1‑3

🧬 Pathophysiology – Why Strokes Happen

• Ischemic (87%): Clot blocks blood flow → core of infarct (dead tissue) surrounded by penumbra (salvageable tissue). tPA window: 3‑4.5 hours to dissolve clot.
• Hemorrhagic (13%): Blood vessel ruptures → blood irritates brain and increases ICP. Worse prognosis, anticoagulants contraindicated.
• TIA (Transient Ischemic Attack): Symptoms <24h, no infarction. 🔥 Must know: High risk of subsequent stroke (≈15% within 3 months) – urgent workup needed.

📌 Stroke Syndromes – Mechanism & Deficits (High Yield)

Pusher syndrome: Patient actively pushes toward the hemiparetic side, resists correction. Mechanism: Lesion in posterior thalamus or parietal lobe → impaired perception of body vertical (tilted perception of upright). Treatment: Use visual cues (vertical lines), weight shift toward unaffected side, mirror feedback.

📊 Impairments & Recovery Assessments

• Modified Ashworth Scale (spasticity): 0 = no increase, 1 = slight catch, 2 = more marked, 3 = considerable increase (passive movement difficult), 4 = rigid.
• Brunnstrom Stages (motor recovery): Stage 1 = flaccid → Stage 2 = spasticity appears, minimal synergy → Stage 3 = voluntary synergies (flexor/extensor) → Stage 4 = some movement out of synergy → Stage 5 = more complex out of synergy → Stage 6 = isolated movements. 🔥 Must know: You cannot skip stages; recovery follows this pattern.
• FIM (Functional Independence Measure): Measures disability level (18 items: self‑care, sphincter, mobility, cognition).
• Fugl‑Meyer Assessment: Measures motor impairment post‑stroke (sensorimotor, balance, range). More sensitive to change than FIM.

🦽 Interventions – Clinical Reasoning

• Early (acute): Cardiopulmonary retraining (incentive spirometry), positioning (affected arm supported, wrist neutral, shoulder in slight abduction), scapular mobilization (prevent frozen shoulder), bed mobility (log roll, bridging).
• Functional positions: Affected limb in weight bearing (sitting on hemiparetic arm? No – use table support). Standing with weight on affected leg to reduce extensor tone.
• Gait & orthotics: AFO for foot drop (prevents toe drag, reduces fall risk). Stair training: "Up with the good, down with the bad" – ascend with unaffected leg first, descend with affected leg first.
• Complications: CRPS (complex regional pain syndrome) – painful swollen hand, allodynia, temperature changes. Treatment: Mirror therapy, desensitization, graded motor imagery.

💡 Clinical reasoning chain: Post‑stroke patient has flexor synergy (shoulder ER, elbow flexion, wrist flexion). To break synergy, use slow reversals and out‑of‑synergy activities (weight bearing on extended arm).

4. TRAUMATIC BRAIN INJURY

Kessler Ch 12

Classification & Mechanisms

• Open vs closed: Open = skull fracture, dura breached → infection risk (meningitis). Closed = no fracture, but acceleration‑deceleration forces.
• Concussion: Transient alteration in consciousness, no structural lesion on CT. Mechanism: Neurometabolic cascade (potassium efflux, calcium influx, glucose hypermetabolism followed by depression).
• Contusion: Bruising of brain tissue, often frontal and temporal lobes (coup‑contrecoup – brain hits skull on impact side and opposite side).
• Diffuse axonal injury (DAI): Shearing forces tear axons at gray‑white matter junction. Prognosis: Poor – prolonged unconsciousness, severe disability.
• Hematomas: Epidural (arterial – lucid interval then rapid deterioration), subdural (venous – slower onset, older adults), intracerebral (within brain tissue).

⚠️ Secondary Complications – Mechanisms

• Increased ICP (intracranial pressure): Monroe‑Kellie doctrine – skull fixed volume; if brain swells or bleeds, pressure rises. Signs: headache, vomiting, altered LOC, Cushing's triad (hypertension, bradycardia, irregular breathing).
• Heterotopic ossification (HO): Bone forms in soft tissue (hips, knees, shoulders). Mechanism: Unknown, possibly from prolonged immobility + inflammatory response. Prevent with ROM, treat with surgery after maturation.
• Seizures: Early (<7 days) vs late. Prophylactic antiepileptics for first 7 days only.
• Decerebrate posturing: Arms extended, internally rotated (midbrain lesion). Decorticate: Arms flexed, legs extended (hemispheric lesion).
• Paroxysmal sympathetic hyperactivity (PSH): Episodic tachycardia, hypertension, sweating, hyperthermia. Mechanism: Loss of inhibitory control from brainstem. Treat with propranolol, morphine.
• CSF leak: Rhinorrhea or otorrhea – risk of meningitis.

🧠 Glasgow Coma Scale (GCS) – How to Use

Eye (1‑4): 4=spontaneous, 3=to voice, 2=to pain, 1=none.
Motor (1‑6): 6=obeys commands, 5=localizes pain, 4=withdraws, 3=flexion (decorticate), 2=extension (decerebrate), 1=none.
Verbal (1‑5): 5=oriented, 4=confused, 3=inappropriate words, 2=incomprehensible sounds, 1=none.
Severe TBI = ≤8, Moderate = 9‑12, Mild = 13‑15.

📋 Rancho Los Amigos Levels of Cognitive Function

Level I: No response. II: Generalized response (inconsistent). III: Localized response (withdraws to pain). IV: Confused‑agitated (combative, restless). V: Confused‑inappropriate (non‑purposeful). VI: Confused‑appropriate (goal‑directed with cues). VII: Automatic‑appropriate (routine). VIII: Purposeful‑appropriate.

🔥 Must know: Agitation peaks at Level IV. Intervention: Low stimulation environment, redirect, avoid restraint (increases agitation).

🔄 Intervention – Clinical Reasoning

• Acute: Positioning to prevent contractures (neutral alignment, splints for wrist/fingers). Multisensory stimulation (auditory, tactile, olfactory). Family education (avoid overstimulation).
• Inpatient rehab: Wheelchair propulsion (may have neglect or impulsivity). Functional mobility training: sit‑to‑stand with verbal cues. Environmental modifications (remove clutter).
• Agitated Behavior Scale: Track treatment response. High score = increase structured activities.

5. SPINAL CORD INJURY

Kessler Ch 13

🔢 Classification – ASIA & Neurologic Level

Neurologic level: Most caudal spinal segment with normal motor (key muscles, Table 13.1) and sensory (pinprick/light touch) function bilaterally.

ASIA Impairment Scale:
A = Complete: no sensory or motor in sacral segments S4‑S5.
B = Sensory incomplete: sensory but no motor below level, including sacral sparing.
C = Motor incomplete: motor function below level, but more than half of key muscles <3/5.
D = Motor incomplete: at least half of key muscles ≥3/5.
E = Normal.

Sacral sparing: Anal contraction, deep anal pressure, or voluntary toe flexion – indicates incomplete injury (key for prognosis).

⚠️ Complications – Mechanisms & Management

• Autonomic dysreflexia (AD): Occurs with lesions T6 or above. Mechanism: Noxious stimulus below injury (e.g., full bladder, pressure ulcer) triggers massive sympathetic reflex, but brain cannot regulate because descending inhibition is cut off. Result: severe hypertension (up to 300 mmHg), bradycardia, pounding headache, sweating above lesion. Immediate action: Sit patient up, loosen tight clothing, check bladder (catheterize if needed), check bowel (disimpact). If severe, nifedipine or nitropaste.
• Orthostatic hypotension (OH): Blood pressure drops when upright. Mechanism: Loss of sympathetic vasoconstriction below lesion → blood pools in legs. Intervention: Gradual tilt table, abdominal binder, compression stockings, midodrine.
• Pressure ulcers: Ischial tuberosities (sitting), sacrum (supine), heels, occiput. Prevention: Pressure relief every 2 hours, specialized cushions, skin checks.
• Heterotopic ossification (HO): Hip, knee, shoulder. Signs: Warmth, swelling, decreased ROM. Diagnosis: Bone scan. Treatment: Etidronate, surgical resection only after mature (1‑2 years).
• Bowel & bladder: Neurogenic bowel (reflexic vs areflexic) – scheduled bowel program. Bladder – intermittent catheterization vs indwelling.

🎯 Functional Outcomes by Level (Tables 13.4, 13.5)

Tenodesis grip (C6) – elaborated: When you actively extend your wrist, the finger flexors are stretched and passively tighten, causing the fingers to curl. This allows a person with C6 injury to grasp objects without active finger flexion. Why it matters: It's the key to independent eating and basic ADLs.

🦽 Interventions – Progression

• Acute: Prevent contractures (ankle dorsiflexion, wrist extension, finger flexion). Respiratory: assisted coughing, postural drainage for high tetraplegics. ROM 2x/day. Upright tilt table to acclimate to upright.
• Inpatient (early): Mat activities (rolling, prone on elbows), transfers (board sliding), pressure relief (push‑ups for paraplegics). Wheelchair assessment (cushion, back support).
• Intermediate: Independent self‑ROM (using straps or opposite limb). Wheelchair skills (carpet vs tile, curbs).
• Advanced: Ambulation with orthoses (RGO, KAFO, AFO). Circuit training, FES (functional electrical stimulation) cycling, aquatic therapy.

6. OTHER NEUROLOGIC DISORDERS – PD, MS, ALS, GBS, PPS

Kessler Ch 14

🧩 Parkinson's Disease (PD) – Elaborated

Pathophysiology: Loss of dopamine‑producing neurons in substantia nigra pars compacta → decreased dopamine in basal ganglia (putamen, caudate) → disruption of direct (facilitatory) and indirect (inhibitory) pathways → bradykinesia, rigidity, tremor.

• Clinical features: Resting tremor (pill‑rolling), cogwheel rigidity (ratchet‑like resistance to passive motion), bradykinesia (slowness, decreased arm swing, hypophonia), postural instability (late sign), freezing (feet stuck to floor), shuffling gait, reduced facial expression (hypomimia).
• Hoehn & Yahr staging: I = unilateral; II = bilateral, no balance impairment; III = postural instability (falls); IV = severe disability but walks; V = wheelchair bound.
• PT interventions: Rhythmic initiation (PNF) to overcome akinesia, rotational activities (trunk rotation to facilitate stepping), LSVT BIG (amplitude training), external cueing (auditory metronome, visual lines on floor).

🧩 Multiple Sclerosis (MS) – Elaborated

Pathophysiology: Autoimmune demyelination of CNS (brain, optic nerves, spinal cord) with relative preservation of axons → conduction block or slowing. Heat sensitivity (Uhthoff's phenomenon) – even 0.5°C increase blocks conduction.

• Clinical features: Fatigue (most common), optic neuritis (painful vision loss), ataxia (dysmetria, intention tremor), spasticity, bladder dysfunction, Lhermitte's sign (electric shock down spine with neck flexion).
• Frenkel exercises: Slow, repetitive, progressive exercises for ataxia. Start supine (heel‑to‑shin), then sitting (finger‑to‑nose), then standing (tandem stance). Mechanism: Uses visual and proprioceptive feedback to substitute for lost cerebellar coordination.
• Orthotics: AFO for foot drop (use lightweight, posterior leaf spring). Cooling garments (vest, neck wrap) to reduce heat‑induced symptoms.

🧩 ALS (Amyotrophic Lateral Sclerosis) – Elaborated

Pathophysiology: Progressive degeneration of both upper motor neurons (corticospinal tract) and lower motor neurons (anterior horn cells). Mixed UMN/LMN signs: UMN → hyperreflexia, spasticity, Babinski; LMN → atrophy, fasciculations, weakness. No sensory loss, no eye movement involvement until late.

• PT interventions: Energy conservation, respiratory muscle training (threshold IMT), mobility aids (walker, power wheelchair). Avoid overwork weakness – do not fatigue muscles beyond recovery. Early non‑invasive ventilation (NIV) improves survival.

🧩 Guillain‑Barré Syndrome (GBS) – Elaborated

Pathophysiology: Post‑infectious autoimmune attack on peripheral nerve myelin (or axon). Ascending paralysis (feet → legs → trunk → arms → face), areflexia (lost deep tendon reflexes), albuminocytologic dissociation (high CSF protein, normal WBC).

• PT interventions – acute phase: Respiratory support (monitor vital capacity), passive ROM, positioning to prevent contractures, psychological support.
• Recovery phase: Strengthening (start with gravity‑eliminated), desensitization for neuropathic pain (mirror therapy, graded tactile stimulation). Most recover over months, but residual deficits common.

🧩 Post‑Polio Syndrome (PPS) – Elaborated

Pathophysiology: New weakness, fatigue, and muscle pain occurring decades after acute polio. Not a reactivation of virus – rather, chronic overuse of remaining motor units leads to terminal degeneration of enlarged motor units.

• PT interventions: Non‑fatiguing strengthening (submaximal reps, avoid eccentric overload), energy conservation (pacing, rest breaks), orthotics (AFO, knee brace), aquatic therapy (buoyancy reduces fatigue).

⚠️ Common Trap: In PPS, aggressive strengthening worsens weakness (overwork weakness). Use low resistance, high frequency but short duration.

📌 FINAL EXAM – HIGH‑YIELD REVIEW CHECKLIST

• PNF: Know D1/D2 for UE/LE, which technique for which problem (Rhythmic initiation = Parkinson's, rhythmic stabilization = instability, slow reversals = coordination).
• Vestibular: Differentiate vertigo vs lightheadedness vs disequilibrium vs oscillopsia. Perform Dix‑Hallpike correctly. Epley for posterior canal BPPV.
• CVA: Stroke syndromes (ACA leg > arm, MCA face/arm aphasia/neglect, PCA vision, vertebrobasilar crossed signs). Brunnstrom stages. Pusher syndrome management.
• TBI: GCS (mild 13‑15, mod 9‑12, severe ≤8). Rancho levels (IV = agitated). Paroxysmal sympathetic hyperactivity – treat with propranolol.
• SCI: ASIA scale (sacral sparing = incomplete). Autonomic dysreflexia (T6+, noxious stimulus, sit up, check bladder). Functional levels: C5 elbow flexion, C6 wrist extension/tenodesis, C7 triceps.
• Other disorders: PD (Hoehn & Yahr, rhythmic initiation), MS (Frenkel exercises, heat sensitivity), ALS (UMN+LMN, avoid overwork), GBS (ascending, areflexia, albuminocytologic dissociation), PPS (non‑fatiguing exercise).

💡 Final advice: Read each question for the most likely or first action. Think: impairment → functional limitation → intervention. Sleep well. You've prepared.

This reviewer integrates Kessler Ch 10‑14, O'Sullivan Ch 21, NPTE pages, and all PowerPoint slides. Every complex concept has been broken down with mechanisms, layman explanations, and clinical reasoning. Use it actively.