Contrary to basic kinematic modelling, during tight turns, wheelchairs can slide sideways by non-negligible magnitudes: Collision risks may be increased.

摘要: Abstract Small spaces make collision-free turns difficult for wheelchair users. Contrary to basic kinematic modelling and not considered previously by engineers; when wheelchairs turn in small spaces, could lateral drift (sideways slipping) increase the risk of collisions with surrounding structures such as walls doorways? An improved understanding can inform building design therapeutic involvement use. Wheelchair is investigated. Two experiments assisted use are reported. Weights represented occupants. First, was measured motion capture (VICON): (n = 225) made experimenter, six radii curvature (0–613 mm) four total-masses (81–142 kg). Second, ruler: (n = 105) experienced assistants (n = 22), three (0, 306, 800 mm), self-selected maximum comfortable weights. Lateral away from centre occurred all greater than 0 mm, a median 27 mm/rad 142 kg total mass 459 mm radius curvature. increased (r² = 0.68 358 mm curvature). During tight turns, magnitude direction that it risks structures.