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Effects of the wheelchair sitting posture on gluteal pressure
1Faculty of Rehabilitation, Gunma University of Health and Welfare: 2-12-1 Honmachi, Maebashi-shi, Gunma 371-0023, Japan.
Abstract:
[Purpose] To evaluate the efficacy of the "forward-tilting posture" (the trunk tilted forward against a table) in a wheelchair in relieving gluteal pressure. [Participants and Methods] Thirty-six healthy adults were instructed to sit in a wheelchair assuming the following three postures: (1) both feet placed on the foot support with the trunk upright ("basic sitting posture"), (2) both feet placed on the foot support with the trunk tilted forward against a table ("forward-tilting posture A"), and (3) both feet placed on the floor with the trunk tilted forward against a table ("forward-tilting posture B"). A seat-type sensor pad placed on a wheelchair cushion was used to measure the maximum gluteal pressure and gluteal contact area. [Results] The maximum gluteal pressures in "forward-tilting postures A" and "forward-tilting postures B" were significantly lower than those in the basic sitting posture. The maximum gluteal pressure in "forward-tilting posture B" was significantly lower than that in "forward-tilting posture A". The gluteal contact area in "forward-tilting posture B" was significantly larger than that in "forward-tilting posture A". [Conclusion] The study results indicate that the "forward-tilting posture" in a wheelchair effectively relieves gluteal pressure.
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