Powered wheelchairs

Extra functions

• Stand-up function - an occupant-controlled mechanism flattens the seat and backrest vertically, helping the user towards a standing position.

There are several advantages: greater independence is achieved through being able to reach high objects, for example, and the psychological advantages of interacting with others at the same level can be considerable. At the same time, circulation and digestion may be improved by the ability to change position, and pressure points can be eased.

Negative factors - a long-term wheelchair user may find that their legs aren't strong enough to support their body weight.

• Elevating seat function - an alternative means of achieving an increase in height. The powerchair's seat is elevated, to bring the user to the right level to reach high objects, or talk to people who are standing.

• Stair climbing - some power chairs are able to climb over kerbs and even up flights of stairs, by continually adjusting the centre of gravity to keep the user stable, while the front and back wheels move vertically over each other.

• Four wheel drive function - provided on power chairs that have been designed to cope with rough terrain. These chairs have independent suspension to all four wheels, enabling them to maintain stability and greater comfort for the user as they cover bumpy ground.

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