The acute phase of GBS — typically the first 2–4 weeks until weakness reaches its plateau — is potentially life-threatening due to respiratory muscle involvement and autonomic instability. Physiotherapy in this phase is focused on respiratory support, positioning to prevent pressure injuries and contractures, and preventing the secondary complications of complete immobility.

Respiratory Physiotherapy: For patients requiring mechanical ventilation (approximately 25–30% of GBS cases), our respiratory physiotherapists work with the ICU team to optimize ventilator weaning, perform airway clearance techniques (percussive physiotherapy, suction), and facilitate the earliest possible spontaneous breathing trials. For non-ventilated patients with reduced respiratory capacity, we monitor respiratory function using incentive spirometry, prescribe diaphragmatic breathing exercises, and teach assisted coughing techniques to reduce the risk of aspiration pneumonia.

Passive Range of Motion (PROM): Complete flaccid paralysis means joints have no active muscle protection — they are vulnerable to rapid development of contractures and heterotopic ossification. We perform full passive ROM of all joints twice daily, maintaining full range at the ankle (preventing equinus contracture), wrist, fingers, and knee. Splinting of the ankles in neutral, wrists in extension, and hands in the functional position is maintained between therapy sessions.

Positioning & Skin Care: Regular repositioning every 2 hours (supine, sidelying left, sidelying right), use of pressure-relief mattresses and heel protectors, and careful positioning to prevent brachial plexus stretch injury and peroneal nerve compression (from the body weight pressing against the fibular head) are physiotherapy-directed responsibilities in the ICU phase.

Pain Management: Neuropathic pain in acute GBS can be severe and is notoriously undertreated. While pharmacological management (gabapentin, carbamazepine, IV morphine) is primary, physiotherapy contributes through careful positioning to reduce nerve stretch, gentle passive movements that reduce pain from joint immobility, and TENS applied to non-paralyzed areas to activate descending pain inhibitory pathways.

As the disease reaches its nadir (plateau of weakness) and IVIG or plasmapheresis treatment takes effect, peripheral nerve remyelination begins. This phase sees the earliest return of voluntary motor activity — typically in a descending pattern (arms and proximal muscles recover before legs and distal muscles, the reverse of the initial ascending paralysis).

Neurological Assessment & Monitoring: We use the Medical Research Council (MRC) grading system to document muscle strength recovery in all major muscle groups at each session, tracking the proximal-to-distal recovery pattern. This systematic monitoring guides the selection of exercises and the transition between phases.

Gravity-Eliminated Active Movement: As MRC Grade 1 (flicker of movement, no joint movement) and Grade 2 (movement through range but not against gravity) activity returns, we position limbs in gravity-eliminated planes (sidelying for hip and knee, arm supported on a table for upper limb) and facilitate the earliest active movement attempts. Even minimal voluntary effort — when combined with the passive movement facilitated by the therapist — activates the re-myelinating motor axons and is essential for cortical-motor neuron connection maintenance.

Hydrotherapy (Aquatic Physiotherapy): The warm water environment of the hydrotherapy pool is uniquely valuable for early GBS mobility. Buoyancy reduces effective body weight by up to 90%, allowing movement against gravity in limbs with only Grade 3 muscle strength (movement against gravity but not against additional resistance). Water temperature (34–36°C) reduces neuropathic pain, and the hydrostatic pressure provides proprioceptive input to the recovering nervous system. We initiate pool therapy as soon as the patient is medically stable to transfer to the pool — often while still requiring significant assistance for walking.

Transfer Training & Functional Mobility: As proximal strength returns, we begin the critical functional milestones: rolling in bed (using momentum and compensatory strategies), sitting at the edge of the bed, standing with bilateral upper limb support, pivoting transfers, and supervised standing practice. The progression is based on MRC grades, not time — each transition is made when the patient demonstrates adequate proximal strength to perform the movement safely.

As peripheral nerve remyelination progresses and muscle strength gradually moves toward MRC Grade 4 (movement against moderate resistance) and Grade 5 (normal strength), rehabilitation becomes progressively demanding. The goal is to systematically load the recovering muscles with progressive resistance to drive optimal muscle fibre remodeling and neuromuscular re-connection.

Progressive Resistance Training: We follow a systematic strengthening programme moving from active-assisted exercises (with minimal resistance) through bodyweight exercises (sit-to-stand, modified push-ups, step-ups) to resistance bands and free weights. The recovery of strength in GBS is not evenly distributed — some muscles recover rapidly, others remain significantly weak for months — requiring individualized exercise prescription for each muscle group based on current MRC grading.

Gait Retraining: Returning to independent, safe gait is the primary rehabilitation milestone for most GBS patients. Gait impairment in GBS is typically driven by: foot drop (peroneal nerve weakness requiring AFO support), proximal hip extensor weakness (producing Trendelenburg gait), and sensory ataxia (impaired proprioception causing unsteady, wide-based gait). We address each component: AFO prescription for foot drop, hip extensor progressive strengthening, proprioceptive retraining, and treadmill gait training with body weight support in early stages.

Sensory Re-Education: The sensory loss from peripheral nerve demyelination — particularly loss of proprioception (joint position sense) — creates significant postural instability and coordination difficulty. We use sensory discrimination training (identifying texture, shape, and size through touch), proprioceptive retraining exercises on foam and unstable surfaces, and vibration therapy to stimulate the large fibre sensory system and accelerate sensory axon re-myelination.

Fatigue Management — The Hidden GBS Disability: Post-GBS fatigue is reported by over 80% of patients at 12 months and is often described as the most disabling symptom. It reflects the enormous metabolic cost of re-myelinating and regenerating peripheral nerves, combined with the inefficiency of partially recovered neuromuscular junctions. We use energy conservation principles, pacing strategies, and a carefully calibrated graded activity programme that progressively increases activity tolerance without triggering the post-exertional fatigue exacerbation that can delay recovery.

GBS recovery can continue for 12–24 months in severe cases, and patients are often discharged from hospital rehabilitation while still significantly impaired. Community phase physiotherapy at Curis 360 Bangalore provides the ongoing supervised rehabilitation required to achieve the maximum possible functional recovery beyond the acute hospital setting.

Return to Driving & Work: Driving assessment requires full lower limb strength and reaction time — criteria that must be formally evaluated before return to driving is safe. We conduct targeted strengthening of ankle dorsiflexion and plantar flexion (the primary driving control movements), alongside formal reaction time testing. Return-to-work rehabilitation addresses the specific physical and cognitive demands of the patient's occupation through a graded work-hardening programme.

Managing Residual Disability: Approximately 20% of GBS patients have significant residual neurological deficits at 12 months — persistent sensory ataxia, chronic fatigue, distal weakness, and neuropathic pain. For these patients, we focus on adaptive equipment assessment, ergonomic home modification, wheelchair skills training (if ambulation is not achievable), and psychological support for adaptation to permanent disability.

Prevention of Recurrence: GBS recurs in approximately 2–5% of cases. Patients must be educated about the early warning signs of recurrence — rapidly ascending numbness and weakness — and the importance of immediate hospital attendance for early immunotherapy. Maintaining general health, managing infections promptly, and regular physiotherapy-supervised exercise to maintain functional reserve are the primary preventive strategies.