The ASIA Impairment Scale (AIS) — developed by the American Spinal Injury Association — is the international standard for classifying SCI severity and is the primary guide for setting realistic rehabilitation goals for SCI patients seeking physiotherapy in Bangalore.

AIS A (Complete): No motor or sensory function preserved in sacral segments S4–S5. No voluntary movement or sensation below the level of injury. Rehabilitation focuses entirely on maximizing independence with the preserved function, wheelchair mobility, and quality of life. While some neurological recovery does occur in approximately 10–15% of AIS A injuries, the clinical approach is based on preserved function above the lesion.

AIS B (Sensory Incomplete): Sensory but not motor function is preserved below the neurological level, including in sacral segments S4–S5. The preserved sensory pathways indicate that some spinal cord continuity exists — creating genuine potential for motor recovery with intensive activity-based rehabilitation. Locomotor training is strongly indicated.

AIS C and D (Motor Incomplete): Motor function is preserved below the neurological level with key muscles grading less than 3/5 (AIS C) or 3/5 or above (AIS D). These patients have the most significant locomotor rehabilitation potential and are the primary candidates for intensive body weight supported treadmill training and FES-assisted gait programmes. The majority of AIS D patients achieve community ambulation with appropriate rehabilitation.

AIS E (Normal): Motor and sensory function is normal — this classification describes recovery from an initially abnormal AIS grade.

Activity-Based Rehabilitation (ABR) is the paradigm-shifting approach to SCI rehabilitation that has transformed outcomes over the past two decades. Based on the concept of activity-dependent neuroplasticity — that the injured spinal cord retains plasticity and can reorganize in response to repetitive, task-specific sensory and motor input — ABR involves intensive, locomotor-specific training starting as early as medically safe after injury.

Body Weight Supported Treadmill Training (BWSTT): The patient is suspended in a harness over a treadmill with partial body weight support (initially 40–80% of body weight), while therapists manually facilitate stepping movements of the legs. The treadmill provides a consistent rhythmic stepping template that activates spinal pattern generators — neural circuits within the spinal cord itself that can generate rhythmic stepping movements somewhat independently of cortical input. Over many thousands of assisted steps, these pattern generators are activated and potentiated through use-dependent plasticity.

Robotic-Assisted Gait Training (Lokomat): Robotic exoskeletons (Lokomat, Ekso) provide computer-controlled limb guidance during treadmill walking, enabling high-intensity, highly repetitive stepping practice that would be physically impossible for therapists to provide manually over extended periods. Robotic training also provides real-time biofeedback on limb kinematics, quantifying and systematically progressing the patient's active contribution to each step cycle.

Functional Electrical Stimulation (FES) for Walking: FES systems deliver precisely timed electrical impulses to the lower extremity muscles — activating quadriceps, hamstrings, hip flexors, and peroneal muscles in the correct sequence to produce a functional stepping pattern. FES-assisted walking provides the dual benefit of functional mobility assistance AND the highly specific sensory afferent input to the spinal cord that drives neuroplastic recovery. Systems like the Parastep, Bioness L300, and NESS L300 are available at our Bangalore SCI rehabilitation centre.

Overground Walking with Assistive Devices: As walking ability improves, we transition from treadmill to overground walking with assistive devices — initially bilateral Lofstrand crutches or a walking frame, progressing to a single walking stick or independent ambulation for patients achieving adequate lower limb strength and balance.

For cervical SCI patients with tetraplegia, the upper extremity is the primary determinant of independence in activities of daily living (ADL), wheelchair mobility, and transferring. Even small improvements in hand and arm function at cervical levels produce enormous functional gains. The priority of upper extremity rehabilitation — and specifically the priority of triceps, wrist extensors, and hand function — is consistently identified by people with tetraplegia as their highest rehabilitation priority.

Tenodesis Grasp Training: Many cervical SCI patients (particularly C6 level) can develop a functional 'tenodesis grasp' — when the wrist is passively extended, the fingers close due to tendon tightness; when the wrist drops, the fingers open. This natural biomechanical mechanism allows object grasping and release without active finger flexion. We train, optimize, and preserve tenodesis by deliberately allowing shortening of the finger flexors (avoiding full passive finger extension stretching in C6 patients) and practicing tenodesis-based ADLs.

FES for Upper Extremity Function (Parastep Hand, Freehand): FES systems for the upper limb stimulate forearm muscles to generate a functional grasp, enabling tetraplegic patients to perform tasks (eating, writing, face washing) that are otherwise impossible. The NESS H200 hand rehabilitation system uses surface electrodes to provide FES-assisted hand opening and closing for both functional use and rehabilitation-driven neuroplastic recovery.

Transfer Training — The Most Critical Daily Skill: Safe independent transfer — from wheelchair to bed, to toilet, to car seat — is the most important skill for community independence after SCI. We systematically train lateral pivot transfers, forward-leaning transfers, and depression transfers, adapting the technique to the specific level and completeness of the injury, the patient's upper limb strength, and their personal equipment (wheelchair type, transfer board, hoist).

Wheelchair skills training is a core competency of SCI physiotherapy. Beyond basic propulsion, skilled wheelchair mobility includes: negotiating kerbs (both ascending and descending), wheelies (balancing on rear wheels for kerb negotiation and uneven surfaces), ramp negotiation, and community terrain skills. We use the Wheelchair Skills Test (WST) — a standardized 32-item assessment — to benchmark and track wheelchair skills progression.

Pressure Injury Prevention: Pressure injuries (decubitus ulcers) are the most preventable and most costly secondary complication of SCI. The insensate, paralyzed skin below the level of injury cannot perceive the ischaemic pain that normally triggers repositioning. We rigorously train all SCI patients in: pressure relief lifts (weight-shifting every 15–20 minutes), tilt-in-space wheelchair use, pressure mapping of the seating surface, skin inspection techniques, and positioning regimens for sleeping.

Shoulder Injury Prevention for Wheelchair Users: Long-term manual wheelchair propulsion produces enormous cumulative stress on the shoulder joint — repetitive overhead and forward-reaching loads that frequently lead to rotator cuff tears and shoulder impingement in the SCI population. We prescribe efficient propulsion technique (long, smooth strokes with a semi-circular hand path), appropriate chair configuration (minimizing push length), and a preventive shoulder strengthening programme to reduce the rotator cuff tear risk that affects over 40% of long-term manual wheelchair users.

Osteoporosis & Bone Health: Below the level of injury, complete removal of mechanical loading (no weight-bearing through paralyzed lower limbs) produces rapid, progressive bone density loss — a 40% reduction in distal femur bone density is measurable within 6 months of complete SCI. This creates serious fragility fracture risk even from minor transfers. Standing programmes — using tilt tables, standing frames, or FES-assisted standing — provide the mechanical bone loading that partially mitigates this bone loss.