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Arch Phys Med Rehabil. 2004 Apr;85(4):611-9.

Evaluation of selected electric-powered wheelchairs using the ANSI/RESNA standards.

Author information

1
Human Engineering Research Laboratories, VA Rehabilitation Research and Development Center, VA Pittsburgh Healthcare Systems, Pittsburgh, PA, USA.

Abstract

OBJECTIVES:

To compare the performance characteristics of different electric-powered wheelchairs (EPWs) and to evaluate the effectiveness of the American National Standards Institute/Rehabilitation Engineering and Assistive Technology Society of North America (ANSI/RESNA) wheelchair standards.

DESIGN:

Five types of EPWs were selected. Three wheelchairs of each type were tested according to the ANSI/RESNA wheelchair standards.

SETTING:

Rehabilitation engineering center.

SPECIMENS:

Fifteen wheelchairs.

INTERVENTIONS:

Not applicable.

MAIN OUTCOME MEASURES:

Static tipping angle; dynamic tipping score; braking distance; energy consumption; static, impact, and fatigue strength; and climatic conditioning.

RESULTS:

There were significant differences (P<.05) among the 5 types of EPWs for static stability when facing both uphill and downhill in the most-stable and least-stable configurations. There were significant differences (P<.05) among the EPWs on most of the dynamic stability tests. There were also significant differences (P<.05) among EPWs for all the effectiveness of brakes conditions, as well as between 2 wheelchairs for the energy consumption testing. There were several failures among the wheelchairs during the static, impact, and fatigue strength testing and during the climatic testing.

CONCLUSIONS:

The results show that EPWs can vary greatly with respect to static and dynamic stability, braking distance, range, strength testing, and climatic conditioning. All these factors have a substantial effect on safety and performance.

PMID:
15083438
[Indexed for MEDLINE]

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