6.1 Stroke Rehabilitation & Hemiplegia Management
Key Takeaways
- Middle cerebral artery (MCA) strokes produce contralateral hemiparesis and hemisensory loss greater in the upper extremity and face than the lower extremity, with left MCA infarcts yielding aphasia and apraxia, and right MCA infarcts causing unilateral spatial neglect and anosognosia.
- Management of the hemiplegic shoulder requires strict precautions to avoid traction and rotator cuff impingement: never pull on the affected limb during transfers, position the flaccid arm in scapular protraction and external rotation, and strictly avoid overhead pulley exercises.
- Constraint-Induced Movement Therapy (CIMT) requires a minimum active motor threshold of 10 degrees active wrist extension and 10 degrees active finger extension on at least two digits to effectively overcome learned nonuse.
- Spasticity assessment using the Modified Ashworth Scale (MAS) grades passive resistance from 0 (no tone increase) to 4 (rigid in flexion or extension), capturing typical upper extremity flexor synergy posturing.
- Unilateral spatial neglect requires multimodal evidence-based rehabilitation, including visual scanning training, anchoring lines, the lighthouse technique, prism adaptation, and active limb activation within the neglected hemispace.
Last updated: August 2026
Stroke Rehabilitation & Hemiplegia Management
Cerebrovascular accidents (CVAs) represent one of the primary diagnoses encountered by occupational therapists in adult neurological rehabilitation. Effective intervention requires deep knowledge of neurovascular anatomy, clinical hemispheric differences, biomechanical shoulder protection, evidence-based motor learning paradigms, and specialized interventions for perceptual-spatial neglect.
1. Vascular Syndromes and Neurovascular Anatomy
The clinical presentation of stroke corresponds directly to the vascular territory compromised by ischemia or hemorrhage. Understanding vascular territories enables the therapist to anticipate sensorimotor, cognitive, perceptual, and communicative deficits during evaluation.
| Vascular Territory | Primary Anatomical Structures Involved | Characteristic Clinical Presentation & OT Implications |
|---|---|---|
| Middle Cerebral Artery (MCA) (Most common site) | Lateral convexity of frontal, parietal, and temporal lobes; internal capsule; basal ganglia | • Contralateral hemiparesis and hemisensory loss: Upper extremity (UE) and face significantly more impaired than lower extremity (LE).<br>• Homonymous hemianopsia: Contralateral visual field loss in both eyes.<br>• Dominant (Left) Hemisphere: Broca's expressive aphasia, Wernicke's receptive aphasia, global aphasia, ideomotor and ideational apraxia.<br>• Non-Dominant (Right) Hemisphere: Left unilateral spatial neglect, anosognosia, visuospatial/perceptual deficits, severe impulsivity. |
| Anterior Cerebral Artery (ACA) | Medial surface of frontal and parietal lobes, anterior corpus callosum | • Contralateral hemiparesis and hemisensory loss: Lower extremity (LE) significantly more impaired than upper extremity (UE).<br>• Frontal Lobe Signs: Abulia (apathy/lack of initiative), perseveration, mental slowing, disinhibition.<br>• Urinary incontinence: Loss of frontal micturition center inhibition.<br>• Apraxia: Transcallosal apraxia or gait apraxia. |
| Posterior Cerebral Artery (PCA) | Occipital lobe, medial and inferior temporal lobe, thalamus, midbrain | • Visual Deficits: Contralateral homonymous hemianopsia, cortical blindness, visual agnosia, prosopagnosia (inability to recognize familiar faces).<br>• Thalamic Pain Syndrome (Dejerine-Roussy): Severe intractable neuropathic pain and contralateral hyperesthesia.<br>• Memory Impairments: Temporal lobe involvement affecting encoding and retrieval. |
| Vertebrobasilar / Brainstem | Cerebellum, pons, medulla, brainstem reticular activating system | • Cerebellar Signs: Bilateral or ipsilateral ataxia, intention tremor, dysmetria, dysdiadochokinesia.<br>• Cranial Nerve Deficits: Dysarthria, dysphagia, diplopia, nystagmus, vertigo, facial droop.<br>• Wallenberg Syndrome (Lateral Medullary): Ipsilateral facial sensory loss, Horner's syndrome, contralateral pain/temperature loss of body, ataxia.<br>• Basilar Artery Occlusion: Locked-in syndrome (quadriplegia with preserved vertical eye movement and cognition). |
2. Left vs. Right Hemispheric CVA Clinical Profiles
Hemispheric specialization dictates distinct behavioral, emotional, and cognitive profiles following stroke. Occupational therapy interventions must adapt to these neuropsychological presentations.
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| LEFT CVA vs. RIGHT CVA CLINICAL PROFILES |
+-------------------------------------------------+-------------------------------------------------+
| LEFT CVA (Right Hemiparesis / Hemisensory Loss) | RIGHT CVA (Left Hemiparesis / Hemisensory Loss) |
+-------------------------------------------------+-------------------------------------------------+
| • Right-sided motor weakness & sensory deficit | • Left-sided motor weakness & sensory deficit |
| • Aphasia (Expressive, Receptive, Global) | • Left Unilateral Spatial Neglect |
| • Motor Apraxia (Ideomotor & Ideational) | • Anosognosia (Denial/unawareness of deficits) |
| • Cautious, hesitant, slow, fearful behavior | • Impulsive, hasty, careless behavioral style |
| • High awareness of deficits; prone to | • Severe lack of safety awareness & insight |
| frustration, anxiety, and depression | • Visuospatial & body scheme perceptual deficits|
| • Intact non-verbal processing / visual cues | • Distorted spatial orientation & depth cues |
| • OT Strategy: Gestural cues, demonstrations, | • OT Strategy: Structured verbal cues, visual |
| reassurance, breaking tasks into simple steps | anchors, slow down pacing, physical safeguards|
+-------------------------------------------------+-------------------------------------------------+
Aphasia Classifications (Left CVA)
- Broca's (Expressive / Non-Fluent) Aphasia: Lesion in posterior inferior frontal gyrus. Speech output is slow, halting, effortful, and telegraphic (e.g., 'Want water'). Auditory comprehension is relatively preserved. Client possesses high insight and often experiences severe frustration. OT approach: Use concise language, closed-ended questions (yes/no), visual communication boards, and allow ample processing time.
- Wernicke's (Receptive / Fluent) Aphasia: Lesion in posterior superior temporal gyrus. Speech output is fluent and effortless but lacks meaningful semantic content ('word salad' with neologisms and paraphasias). Auditory comprehension is severely impaired; client lacks awareness of communication errors. OT approach: Use clear visual demonstrations, tactile guidance, gestures, and concise visual cues rather than elaborate verbal explanations.
- Global Aphasia: Severe impairment of both expressive and receptive communication across all modalities.
Apraxia Classifications (Left CVA)
- Ideomotor Apraxia: Breakdown in the execution of motor patterns despite intact concept and physical capacity. Client understands the concept (e.g., knows what a toothbrush does) but cannot translate the idea into smooth motor execution upon verbal command or imitation; often performs better spontaneously in natural contexts.
- Ideational Apraxia: Breakdown in the conceptualization of the task sequence and tool function. The client does not know what to do (e.g., attempts to brush hair with a fork, puts socks over shoes, or smears toothpaste directly onto mouth). OT approach: Total task practice in naturalistic contexts, physical and visual cueing, limiting tool choices, and errorless learning.
3. Biomechanics and Management of the Hemiplegic Shoulder
Glenohumeral subluxation occurs in up to 80% of hemiplegic stroke survivors during the initial flaccid stage. The flaccid supraspinatus, deltoid, and rotator cuff musculature fail to seat the humeral head within the shallow glenoid fossa, allowing gravity and downward scapular rotation to displace the humerus inferiorly and anteriorly.
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| HEMIPLEGIC SHOULDER PROTECTION & POSITIONING |
+---------------------------------------------------------------------------------------------------+
| 1. BED POSITIONING: |
| • Hemiplegic Side-lying: Protracted scapula, shoulder flexed to 90°, externally rotated, |
| forearm supinated; unaffected leg supported forward on pillows. |
| • Non-Hemiplegic Side-lying: Hemiplegic arm supported forward on pillows in protraction and |
| elevation; prevents retraction and gravity-dependent adduction. |
| • Supine: Hemiplegic arm supported on pillow beside body in slight abduction/external rotation.|
| |
| 2. WHEELCHAIR POSITIONING: |
| • Arm trough or lap tray / half-lap tray with forearm neutral or supinated. |
| • Prevents dangling, gravitational subluxation, and edema from dependent positioning. |
| |
| 3. AMBULATION / TRANSFER SUPPORT: |
| • GivMohr sling or humeral support harness during functional mobility/transfers to align |
| humeral head without trapping arm in internal rotation/flexor synergy. |
| |
| 4. CRITICAL SAFETY CONTRAINDICATIONS: |
| • NEVER pull on the hemiplegic arm during transfers or repositioning. |
| • STRICTLY CONTRAINDICATED: Overhead pulleys (causes impingement, subacromial bursitis, pain). |
| • AVOID forceful passive ROM beyond 90° shoulder flexion/abduction without upward scapular |
| rotation and external humeral rotation. |
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Clinical Measurement of Subluxation
Subluxation is assessed via finger-breadth palpation between the acromion and the humeral head with the patient seated upright with the arm hanging without support:
- 1-finger breadth subluxation (~1 cm gap)
- 2-finger breadth subluxation (~2 cm gap)
- 3-finger breadth subluxation (~3 cm gap or greater)
4. Tone, Spasticity, and Synergy Control
Following the initial flaccid stage, upper motor neuron lesion pathophysiology leads to hyperreflexia, hypertonia, and velocity-dependent resistance to passive stretch (spasticity).
The Modified Ashworth Scale (MAS)
The standard clinical tool for quantifying spasticity:
| Score | Clinical Description |
|---|---|
| 0 | No increase in muscle tone. |
| 1 | Slight increase in muscle tone, manifested by a catch and release or by minimal resistance at the end of the range of motion when the affected part is moved in flexion or extension. |
| 1+ | Slight increase in muscle tone, manifested by a catch, followed by minimal resistance throughout the remainder (less than half) of the range of motion. |
| 2 | Marked increase in muscle tone through most of the range of motion, but affected part is easily moved. |
| 3 | Considerable increase in muscle tone; passive movement is difficult. |
| 4 | Affected part is rigid in flexion or extension. |
Stereotypical Synergy Patterns (Upper Extremity)
- Flexor Synergy (Dominant in UE): Scapular retraction and elevation, shoulder abduction and external rotation, elbow flexion (strongest component), forearm supination, wrist flexion, finger flexion.
- Extensor Synergy: Scapular protraction and depression, shoulder adduction and internal rotation (strongest component), elbow extension, forearm pronation, wrist extension/flexion, finger flexion.
5. Evidence-Based Motor Recovery Approaches
Contemporary motor rehabilitation relies on active, high-repetition, task-specific training grounded in neuroplasticity.
Constraint-Induced Movement Therapy (CIMT)
CIMT overcomes learned nonuse by forcing reliance on the paretic upper extremity.
- Standard Inclusion Criteria (Minimal Motor Threshold):
- Minimum 10° active wrist extension.
- Minimum 10° active finger extension in at least two digits (index/middle or thumb).
- Adequate static and dynamic balance (independent standing without upper extremity support).
- Intact basic cognition (e.g., MoCA ≥ 24 or MMSE ≥ 24) to follow complex behavioral contracts.
- Protocol Architecture: Restraint of the unaffected upper extremity in a padded mitt or sling for 90% of waking hours over a 2-week period, combined with 6 hours per day of intensive, repetitive task practice and shaping (mCIMT protocols use modified schedules, e.g., 2–3 hours/day mitt restraint + 1–2 hours structured therapy).
Task-Oriented / Repetitive Task Practice (RTP)
- Engaging the client in meaningful, goal-directed, real-world tasks (e.g., pouring water from a pitcher, wiping a tabletop, grasping utensils, reaching into cabinets) with high repetitions and variable contexts.
- Facilitates motor learning through dynamic systems theory, external focus of attention, and progressive challenge.
Additional Evidence-Based Sensorimotor Interventions
- Bilateral Upper Limb Training (BULT): Simultaneous symmetrical or alternating bilateral movements (e.g., rolling dough, pushing a rolling pin) recruiting uncrossed corticospinal pathways and interhemispheric coupling.
- Mirror Therapy: The client places the paretic arm behind a vertical mirror while performing movements with the intact arm, observing the mirror reflection. Visual feedback activates the contralateral primary motor cortex and mirror neuron network.
- Mental Practice / Motor Imagery: Cognitive rehearsal of motor tasks without physical execution, combined with subsequent physical practice to activate motor planning networks.
- Neuromuscular Electrical Stimulation (NMES): Surface electrical stimulation applied to the wrist/finger extensors (e.g., extensor digitorum communis, extensor carpi radialis) to activate paralyzed musculature during functional grasping tasks.
6. Unilateral Spatial Neglect Interventions
Unilateral spatial neglect is a failure to orient, report, or respond to stimuli in the hemispace contralateral to the brain lesion (predominantly right parietal cortex lesions producing left hemispace neglect). It is distinct from visual field cuts (hemianopsia), though both may co-occur.
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| EVIDENCE-BASED NEGLECT INTERVENTION MATRIX |
+------------------------------------+--------------------------------------------------------------+
| Intervention Technique | Mechanism & Practical Implementation |
+------------------------------------+--------------------------------------------------------------+
| **Visual Scanning Training (VST)** | Systematic left-to-right visual exploration; using colored |
| | **anchoring lines** (bright red tape on left edge of table/ |
| | page) and numbered targets to anchor initial visual gaze. |
+------------------------------------+--------------------------------------------------------------+
| **Lighthouse Technique** | Metaphoric cognitive imagery instructing the client to sweep |
| | their eyes and head smoothly from far left to far right like |
| | a rotating lighthouse beam across the entire room. |
+------------------------------------+--------------------------------------------------------------+
| **Prism Adaptation** | Wearing wedge prism glasses that displace the visual field |
| | 10°–15° to the right; performing pointing tasks produces an |
| | adaptive leftward sensorimotor shift after prism removal. |
+------------------------------------+--------------------------------------------------------------+
| **Limb Activation** | Actively or passively moving the left paretic limb within the|
| | left hemispace; triggers right motor/parietal recruitment. |
+------------------------------------+--------------------------------------------------------------+
| **Monocular / Hemifield Patching** | Patching the right eye or right visual field of both lenses |
| | to disinhibit the left superior colliculus and force leftward|
| | visual orientation and attention. |
+------------------------------------+--------------------------------------------------------------+
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Test Your Knowledge
An occupational therapist in an inpatient rehabilitation facility evaluates a client who sustained a right middle cerebral artery stroke 3 weeks ago. The therapist considers initiating Constraint-Induced Movement Therapy (CIMT) to address upper extremity motor recovery. Which minimum active motor criteria must the client demonstrate to qualify for a standardized CIMT protocol?
A
B
C
D
Test Your Knowledge
A client with acute flaccid hemiplegia following a left hemisphere stroke is seated in a wheelchair. The occupational therapist observes a 2-finger breadth glenohumeral subluxation on the right side. Which clinical intervention strategy is the MOST APPROPRIATE and safe method to manage this client's shoulder condition?
A
B
C
D
Test Your Knowledge
An occupational therapist is working with a client who sustained a right cerebrovascular accident. During mealtime, the client eats food only from the right side of the plate, ignores family members seated on the left, and frequently bumps into the left doorframe during wheelchair mobility while insisting there is no problem with their vision or motor control. Which intervention is MOST EFFECTIVE for addressing this client's unilateral spatial neglect?
A
B
C
D