Abstract
The magnitude and rate of force required to maintain the body in a supported position throughout seated articulation will vary depending on the physical stature of the user and the seating mechanism. This study investigated five different chair mechanisms. The magnitude of force required to support the body throughout articulation, for a diverse population, was determined for each chair's mechanism. This requirement was then compared to the amount of support that the chair's mechanism was designed to produce. The relationships between the magnitude of force required by the user to maintain support throughout articulation and the magnitude of force provided by the chair mechanism is compared and evaluated.
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