Mobility aids

Mobility aids are assistive products that support or substitute for lost locomotor function, enabling the older person to transfer, stand, walk and move about safely. They are one arm of the wider category of “aids and adaptations”.

Purposes: widen the base of support and improve balance; unload a painful or weak limb; compensate for reduced proprioception and reaction time; increase confidence and reduce fear of falling; extend walking distance and endurance; and enable participation.

Aids reduce activity and participation restriction, and range from the simple and inexpensive to the technologically advanced.

“The provision of an aid is not always the best option, as it can foster dependence rather than independence.”

“Those in real need often do not avail themselves of even basic aids and appliances.” → Under-provision and over-provision are both errors; the answer is assessment, not reflex prescription.

Lack of mobility aids is itself listed as a cause of immobility, alongside medical orders, restrictive devices and chemical restraints. Immobility produces muscle atrophy, loss of strength and endurance, bone loss, joint contractures, impaired balance and coordination, more falls, and — through reduced bone mass — more serious injury when falls occur.

About one-quarter of community-dwelling older adults use at least one mobility device. The incidence of falls and recurrent falls is not associated with any particular device or with the use of multiple devices.

Older adults who own devices fall more often when they are not using them, and those who fall in the absence of their device suffer more serious injuries. This is likely confounded, because consistent and effective use of an assistive device itself requires robust cognitive and functional capability.

Ambulatory (walking) aids — sticks/canes, crutches, walking frames and rollators. Wheeled mobility — manual wheelchairs, powered wheelchairs, scooters. Transfer aids — trapeze/monkey pole, transfer pole or bar, transfer board, hoist, raised bed and toilet seats. Environmental aids — handrails, ramps, grab bars, stair lifts. Orthoses and prostheses — an orthosis is applied to the external surface to support, improve function, or restrict or promote movement; a prosthesis replaces a body part.

The Berg Balance Scale gives a practical decision rule: 0–20 = wheelchair-bound; 21–40 = walking with assistance (needs an aid); 41–56 = independent.

Cane length should equal the distance from the wrist crease to the floor, standing upright in usual footwear with arms hanging. Cane length matters because a wrong length creates secondary problems in other joints.

Which hand? A cane held in the contralateral hand limits pain by reducing weight on an arthritic hip. For knee pain, the patient should experiment with holding the cane in either hand. In hemiplegia, the cane goes in the unaffected hand.

Gait sequences: cane and affected leg advance together, then the sound leg (“cane– bad–good”); three-point gait for non-weight-bearing; partial weight-bearing gait for protected loading; four-point gait for maximum stability. Stairs: “up with the good, down with the bad” — the aid goes with the affected limb.

Maintenance is a safety issue. Ferrules must be checked regularly and replaced when worn, to reduce the risk of falls. Also check wheel locks, brakes, screws, handgrips and folding mechanisms, and ensure the device is stored where the patient will actually reach for it.

Wheelchairs were originally designed for transport, not for prolonged sitting — their sling-back seats do not provide appropriate support. In nursing homes, over 50% of residents use a wheelchair and most spend the majority of the day in it, frequently in chairs that do not fit.

Seating problems cause pain and agitation — and therefore falls and restraint use: poor back support; a chair too tall, too heavy or too wide; footrests set too high; and the hammock effect of the sling seat. The uncomfortable patient attempts to transfer unsafely.

Seating solutions: a wedge cushion under the buttocks and thighs tilts the resident backwards; a wedge seat prevents sliding forward; lateral supports or cushions correct leaning to one side; and in hemiplegia at risk of shoulder subluxation, an arm trough, elevated armrest, lateral arm support or half tray protects the flaccid limb. Anyone spending considerable time in a wheelchair must be referred to a physiotherapist or occupational therapist for a formal seating evaluation.

Related bed and transfer aids: overlay mattress cushions, air or sheepskin mattresses, pillows and leg separator cushions, heel pads and bed cradles in peripheral vascular disease or pressure ulcers; trapeze, transfer pole or bar, raised quarter- or half-length siderail; and bed and toilet seat height matched to the patient’s lower-leg length.

Advice on the suitability of aids is best left to occupational therapists or others with particular expertise. Physiotherapists advise on mobility aids, speech therapists on communication aids, audiologists on hearing aids and continence advisors on continence aids. These professionals also provide follow-up and ensure that aids are properly used and maintained.

Prescription is a process, not an event: assess → select → measure and fit → train the patient and carer → check the home environment (thresholds, rugs, narrow doorways, stairs, Indian-style toilet) → review use, condition and continued suitability. Devices should be recommended only if they improve participation in activities the person and family have identified as important.

Environmental adaptation must accompany the aid — handrails, ramps, and improved access to shower and toilet areas. Early occupational therapy input, usually including a home visit, ensures modifications are appropriate and timed to facilitate hospital discharge.

Device-related hazards: falls from incorrect height or worn ferrules; tripping over the frame; shoulder, wrist and hand overuse pain; carpal tunnel syndrome and ulnar neuropathy; axillary crutch palsy; increased energy cost of walking; loss of reciprocal arm swing with frames; deconditioning and learned dependence; stigma and non-use; and, for wheelchairs, pressure ulcers, contractures, shoulder subluxation and functional incontinence.

The global access gap has been quantified The WHO–UNICEF Global Report on Assistive Technology (2022) revealed that more than 2.5 billion people need one or more assistive products, and that nearly one billion of them are denied access, particularly in LMICs, where access can be as low as 3% of need versus 90% in some high-income countries. By 2050 an estimated 3.5 billion people will need assistive technology. Most users need more than one product, making integrated services important. Of the 80 million people who need a wheelchair, only 5–35% have access to one depending on the country.

WHO Wheelchair Provision Guidelines (2023) — the new reference standard WHO estimates that 80 million people, about 1% of the world’s population, are likely to require a wheelchair, a number set to grow as the global population ages. The guidelines help Member States increase access to wheelchairs as a priority product, supporting the UNCRPD and SDGs 3, 4 and 10, and complement the 2008 WHO guidelines on manual wheelchairs in less-resourced settings, supported by WHO Training in Assistive Products (TAP). Data from the WHO rapid Assistive Technology Assessment (rATA) across 27 countries found 1.6% of all participants reported needing a wheelchair, rising to 6.5% among those aged 65 and older, and that 12.0% had some degree of mobility difficulty. An appropriate wheelchair is framed not merely as equipment but as a means of exercising human rights.

The WHO “4P” framework and cost as a policy target WHO’s strategy places people at the centre and gives equal attention to Policy, Products, Provision and Personnel as interconnected elements that must be aligned to ensure equitable access. WHO is also Secretariat for the Global Cooperation on Assistive Technology (GATE). WHA76.6 (May 2023) specifically commits Member States to minimise the prohibitive costs of assistive technologies such as hearing aids, glasses, wheelchairs and prosthetics. Exam use: if asked “how would you improve mobility aid provision in your district?”, structure the answer as Policy, Products, Provision, Personnel.

What mobility aids do not do — the falls evidence The 2023 Cochrane review found that assistive devices alone — eyeglasses, specialised footwear, bed alarm systems — and patient education alone do not decrease the rate of falls, whereas home fall-hazard assessment and modification reduces falls by 26% overall and 38% in those at higher risk. NICE NG249 (April 2025) found insufficient evidence on assistive technologies such as footwear, foot devices and self-care and assistive devices in community settings and issued a research recommendation. Exam framing: a mobility aid prevents falls only as part of a package — exercise, medication review, vision correction and home hazard modification.

Guideline gaps and technology on the horizon A 2025 scoping review (Frontiers in Rehabilitation Sciences) searched guidelines published between January 2008 and March 2024 across five databases and found only 24 usable guidelines from 291 records, concluding that guideline development must accelerate if assistive technology is to be delivered within UHC. Textbook-flagged directions are maturing: robotic walking-assist devices (with potential both to augment recovery in neuromuscular deficit and to assist ADLs including stair walking), sensor-based gait analysis to select the most appropriate orthosis, and robotic gloves combined with virtual reality and arm orthoses that counterbalance limb weight after hemiparetic stroke. Smart canes and rollators with fall detection and GPS are entering practice but lack older-adult validation.

India — the operational provision system The ADIP Scheme (Assistance to Disabled Persons for Purchase/Fitting of Aids and Appliances) has operated since 1981, providing durable, scientifically manufactured standard aids and appliances to promote physical, social and psychological rehabilitation, arrest the extent of disability and prevent secondary disability. Grants go to ALIMCO, National Institutes, Composite Regional Centres, District Disability Rehabilitation Centres, State corporations and NGOs; the scheme also funds corrective surgery where required before a device is provided, and was last revised with effect from 1 April 2024 and continued to 31 March 2026. ALIMCO is the largest manufacturer of mobility and rehabilitation aids in South Asia. Over the seven years to 2020, ADIP spent about ₹10.8 billion and benefited 1.8 million people, largely through 9460 camps. ALIMCO is the implementing agency for ADIP and nodal agency for Rashtriya Vayoshri Yojana, and has begun opening Pradhan Mantri Divyasha–Vayoshri Kendras (PMD-VK). Under RVY, BPL senior citizens with income ≤ ₹15,000/month receive walking sticks, elbow crutches, walkers, tripods/ quadpods, wheelchairs, hearing aids, spectacles and dentures free, with doorstep delivery for those aged ≥80 years.

A mobility aid can foster dependence rather than independence — prescribe the least restrictive device that is safe.

Lack of a mobility aid is itself a listed cause of immobility.

Cane length = wrist crease to floor; handle at the ulnar styloid/greater trochanter; elbow flexed 20–30°.

Cane in the hand opposite the painful hip; for the knee, try either hand; in hemiplegia, the unaffected hand.

Cane–bad leg–good leg on the flat; up with the good, down with the bad on stairs.

Axillary crutch pad sits ~2 finger-breadths below the axilla — never bear weight on the axilla (crutch palsy).

A standard frame gives the most stability but abolishes arm swing and cannot be used on stairs.

A rollator needs intact grip, cognition and braking ability — it can run away downhill.

Berg Balance Scale: 0–20 wheelchair-bound, 21–40 walking with assistance, 41– 56 independent.

Worn ferrules cause falls — check and replace at every review.

About a quarter of community-dwelling elders use a mobility device; falls are not linked to any particular device.

Wheelchairs were designed for transport, not for sitting all day.

Hemiplegic arm in a wheelchair needs an arm trough, elevated armrest or half tray to prevent shoulder subluxation.

Assistive devices alone do not prevent falls.

WHO 4P framework: Policy, Products, Provision, Personnel.

India: ADIP (since 1981, revised 2024) and RVY, delivered through ALIMCO, DDRCs and CRCs.