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Physiotherapy Management of Amyotrophic Lateral Sclerosis (ALS)

Overview of ALS and Its Relevance to Physiotherapy

ALS is a progressive neurodegenerative disorder that causes cell death of both upper motor neurons (motor cortex) and lower motor neurons (brainstem and spinal cord). The result is relentlessly progressive weakness, muscle wasting, spasticity, fasciculations, bulbar dysfunction, and ultimately respiratory failure. Because no cure exists, physiotherapy is a cornerstone of the multidisciplinary approach - focused on maximising function, quality of life, and delaying disability at every stage of the disease.
The multidisciplinary team typically includes neurologists, physiotherapists, occupational therapists, speech-language pathologists, nutritionists, respiratory therapists, social workers, and palliative care specialists (Bradley and Daroff's Neurology in Clinical Practice). Physiotherapy is active throughout the disease course but must be continuously adapted as ALS progresses through early, middle, and late stages.

Short-Term Goals of Physiotherapy

Short-term goals are typically set over a 4-12 week horizon and target the most immediately limiting problems present at assessment.

1. Pain Relief and Reduction of Muscle Cramps

ALS causes frequent, often severe muscle cramps that can precede other symptoms by months. Cramps arise in unusual muscles (thigh, abdomen, tongue). Physiotherapy addresses these through:
  • Gentle stretching and range-of-motion (ROM) exercises: Passive and active-assisted stretching of the affected muscle groups reduces cramping intensity and frequency.
  • Massage and soft tissue mobilisation: Improves local circulation, reduces muscle overactivity, and provides symptomatic relief.
  • Positioning: Teaching patients and carers optimal resting positions to reduce sustained muscle tension.
  • Heat modalities: Superficial heat (hot packs, warm hydrotherapy) can ease muscle spasms and painful cramps.
(Bradley and Daroff's Neurology, Table 97.5: massage and physical therapy are listed as "other therapy" for cramps alongside pharmacotherapy)

2. Maintaining and Improving Muscle Strength

In early-stage ALS, a short-term goal is to preserve existing strength and slow functional decline:
  • Moderate-intensity resistance training: Low-to-moderate loads targeting proximal and distal muscle groups. The key principle is avoiding overexertion - high-intensity exercise may accelerate motor neuron death in ALS. The principle of "working within fatigue limits" is central.
  • Aquatic therapy / hydrotherapy: The buoyancy of water allows strengthening exercises with reduced joint loading - particularly beneficial for patients with early proximal weakness.
  • Functional movement retraining: Task-specific exercises (standing from a chair, stair climbing, gripping) maintain motor patterns as long as neurologically possible.
Evidence note: A 2025 systematic review by Souza et al. (PMID 40273110) examined 8 trials (296 individuals) and found that muscle-strengthening interventions showed no statistically significant superiority over control in short-term outcomes on meta-analysis, though most individual studies favoured exercise. Quality of evidence was low to very low. Importantly, no serious adverse events were reported, confirming safety of moderate strengthening.

3. Reducing Spasticity

Upper motor neuron involvement produces spasticity, which compounds weakness and causes painful flexor spasms. Short-term physiotherapy targets:
  • Passive ROM exercises: Systematic joint-by-joint ranging prevents spasticity from transitioning to contracture.
  • Prolonged muscle stretching: Sustained low-load stretching (20-30 minutes) activates Golgi tendon organ-mediated inhibition to reduce tone.
  • Cryotherapy: Cold application temporarily reduces spastic tone before exercise.
  • Positioning and splinting: Static splints (wrist, ankle-foot orthoses) maintain muscle length between therapy sessions.
  • Hydrotherapy: Warm water reduces spasticity acutely, enabling improved ROM.
(Bradley and Daroff's Neurology, Table 97.5: "Physical therapy" and "Range-of-motion exercises" for spasticity, alongside baclofen/tizanidine)

4. Gait and Balance Training

Early to mid-stage patients often develop foot drop, proximal leg weakness, and impaired balance:
  • Gait re-education: Compensatory gait strategies, training heel-toe pattern as long as feasible.
  • Orthotic prescription: Ankle-foot orthoses (AFOs) for foot drop - a critical early short-term goal to prevent falls and maintain community ambulation.
  • Balance training: Proprioceptive exercises (tandem walking, single-leg stance on stable/unstable surfaces), adapted as strength declines.
  • Fall prevention training: Identifying and addressing fall risk - teaching safe transfers, use of walking aids.

5. Respiratory Muscle Training (Short-Term Respiratory Goals)

Respiratory failure is the primary cause of death in ALS. Early respiratory physiotherapy goals aim to optimise and maintain pulmonary function:
  • Inspiratory muscle training (IMT): Threshold loading devices to strengthen the diaphragm and accessory inspiratory muscles in early-stage disease.
  • Expiratory muscle training (EMT): Strengthens the ability to cough, protecting against aspiration pneumonia.
  • Incentive spirometry: Encourages maximal deep breaths, maintains alveolar recruitment.
  • Breathing exercises: Diaphragmatic breathing, pursed-lip breathing, segmental breathing.
  • Monitoring FVC: Forced vital capacity is the key respiratory outcome. The 2026 systematic review (Macpherson et al., PMID 41307543) found pulmonary interventions had moderate-quality evidence with small positive effects on FVC (ES = 0.40).

6. Education and Energy Conservation

  • Patient and carer education: Teaching joint protection, energy conservation techniques, pacing of activities throughout the day to reduce fatigue.
  • Fatigue management: Scheduling rest periods, prioritising activities; fatigue is a dominant short-term symptom and can be partially modified through activity pacing (Goldman-Cecil Medicine, Table, "Energy conservation" listed under Fatigue management).
  • Posture correction: Training patients to avoid sustained neck flexion or extension that worsens head drop.

7. Functional Independence in Activities of Daily Living

  • Adaptive strategies for ADLs: Teaching energy-efficient techniques for dressing, grooming, feeding, and toileting in collaboration with occupational therapy.
  • Assistive device training: Early prescription and training with walking frames, wheeled rollators, and adaptive utensils before they are urgently needed.

Long-Term Goals of Physiotherapy

Long-term goals shift from maintaining and improving function toward compensation, adaptation, quality of life preservation, and comfort care as ALS advances. They are set with the understanding that disease progression is inevitable and goals must be continuously re-evaluated.

1. Prevention of Contractures and Deformities

As weakness progresses, joints lose active motion and secondary contractures develop rapidly. Long-term physiotherapy:
  • Sustained passive stretching programme: Daily or twice-daily passive ROM across all joints (shoulder, elbow, wrist, hip, knee, ankle). Family and carer training is essential.
  • Splinting and orthotic management: Progressive use of static and dynamic splints for wrist drop, foot drop, and hand contractures. Serial casting may be required.
  • Positioning protocol: Detailed lying, sitting, and wheelchair positioning to offload vulnerable joints and prevent deformity. Wheel-chair tilt-in-space and custom seating systems become primary tools.
  • Joint pain management: ALS-related joint deformities cause painful shoulder pericapsulitis and bursitis. Physiotherapy includes gentle mobilisation, heat, TENS, and coordination with pharmacological management (Bradley and Daroff's Neurology, p. 2158).

2. Maintaining Mobility - Transition to Wheelchair

A major long-term milestone is the transition from walking to wheelchair use. Physiotherapy goals:
  • Wheelchair prescription: Assessment and prescription of appropriate manual or power wheelchair with customised postural support, head rests, and pressure-relieving cushions.
  • Transfer training: Safe bed-to-chair, chair-to-commode transfers using hoists, transfer boards, and carer training - preventing injury to both patient and carer.
  • Powered mobility training: As upper limb weakness advances, joystick-controlled powered wheelchairs maintain independence. Eye-gaze or head-switch controls may eventually be needed.
  • Community mobility planning: Home visits, environmental assessments, ramp and doorway modifications.

3. Long-Term Respiratory Management

Respiratory decline follows a predictable trajectory. Long-term respiratory physiotherapy goals include:
  • Airway clearance: Manual chest physiotherapy (percussion, vibration, postural drainage) to clear secretions, especially as cough weakens.
  • Mechanical insufflation-exsufflation (MIE / cough assist): A high-priority long-term intervention. MIE devices apply positive pressure followed by rapid negative pressure to simulate a cough, clearing secretions. This significantly reduces risk of chest infections and hospitalisation. (Goldman-Cecil Medicine, Table 97.5: "Insufflation-exsufflation" listed under management of thick phlegm)
  • Non-invasive ventilation (NIV/BiPAP): Physiotherapists collaborate in NIV initiation, mask fitting, patient education, and compliance monitoring. BiPAP prolongs survival and improves quality of life; respiratory physiotherapy is central to its success.
  • Positioning for breathing: Head-of-bed elevation, sitting posture optimisation for diaphragmatic excursion.
  • Secretion management: Nebulised saline, positioning, and MIE for retained secretions in late-stage disease.

4. Pressure Injury Prevention

As ALS advances and mobility decreases:
  • Pressure area management: Regular repositioning protocols (every 2 hours), pressure-relieving mattresses and cushions.
  • Carer training: Teaching carers correct manual handling and repositioning techniques to prevent both pressure injuries and carer musculoskeletal injury.
  • Skin monitoring: Physiotherapists participate in regular skin inspection, particularly over bony prominences (sacrum, heels, ischial tuberosities).

5. Maintaining Functional Communication and Swallowing Support

While primarily a speech pathology role, physiotherapists contribute:
  • Head and neck positioning: Optimising head position to reduce aspiration risk during feeding and support augmentative communication device use.
  • Head-support orthoses: Cervical collars or custom-moulded supports for head drop, which severely impairs swallowing, communication, and vision.
  • Body positioning: Upright trunk positioning during meals to reduce aspiration.

6. Psychological Support and Quality of Life

  • Exercise and activity participation: Maintaining any level of physical activity - even gentle, supported movement - has demonstrated benefits on mood, fatigue perception, and quality of life.
  • Goal setting with patient and family: Collaborative, patient-centred goal setting is central to long-term ALS physiotherapy. Goals shift from function-oriented to comfort and dignity-oriented as disease advances.
  • Carer support: Carer education, supervised practice of techniques, and carer fatigue monitoring are long-term physiotherapy responsibilities.
Evidence note: A 2024 systematic review by Silva et al. (BMJ Open, PMID 39182937) found that physical therapy may improve global function in the short term; effects on quality of life and fatigue were not conclusively demonstrated, but no adverse events were increased.

7. Palliative Physiotherapy (Late-Stage Goals)

In advanced ALS, physiotherapy transitions fully to palliative goals:
  • Comfort positioning: Expert repositioning, positioning aids, and pressure care to prevent pain.
  • Gentle passive movements: Maintain joint comfort and circulation without causing fatigue.
  • Dyspnoea management: Positioning (sitting upright, forward-lean posture), fan-based airflow across the face, relaxation techniques.
  • Supporting ventilator-dependent patients: For patients on invasive mechanical ventilation, physiotherapy addresses secretion clearance, positioning, and preventing ventilator-associated complications.
  • Family support and bereavement preparation: Physiotherapists are part of the multidisciplinary palliative team.

Summary Table: ALS Physiotherapy Goals

DomainShort-Term GoalsLong-Term Goals
Muscle strengthMaintain/slow decline via moderate resistance and aquatic exerciseCompensate for progressive weakness; transition to assisted movement
Spasticity / crampsStretching, ROM, heat, massage, splintingSerial casting, sustained positioning, contracture prevention
Gait / mobilityAFO prescription, gait re-education, balance trainingWheelchair prescription, transfer training, powered mobility
RespiratoryIMT, EMT, breathing exercises, FVC monitoringCough assist (MIE), NIV/BiPAP support, postural drainage
Pain / jointsJoint protection, analgesic modalities, ROMPrevent contractures, manage shoulder pericapsulitis
ADL / functionEnergy conservation, adaptive strategiesAssistive technology, environmental modification
Pressure carePositioning educationFull pressure prevention protocol, carer training
PsychologicalPatient education, fatigue managementCarer support, palliative goals, dignity in late-stage care

Evidence Summary

The 2026 systematic review by Macpherson et al. (Physical Therapy, PMID 41307543) - the most comprehensive to date, covering 39 studies and all disease stages - found:
  • Multimodal training (combining exercise types): moderate-quality evidence, moderate effect on ALSFRS-R (ES = 0.56)
  • Pulmonary interventions: moderate-quality evidence, small positive effect on FVC (ES = 0.40)
  • Most evidence applies to early-stage ALS; studies of mid and late-stage physiotherapy remain limited
  • No serious adverse events were reported across studies
Key clinical principle: physiotherapy in ALS must follow the "use it or lose it vs. overuse weakness" balance. Moderate, non-fatiguing exercise is safe and beneficial; high-intensity exercise to failure is contraindicated as it may accelerate motor neuron degeneration.

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