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Fluctuation Mechanism of Horizontal Force Applied to Buttocks Varies Depending on Difference in Rotational Axis Position of Back Support in a Reclining WheelchairFluctuation Mechanism of Horizontal Force Applied to Buttocks Varies Depending on Difference in Rotational Axis Position of Back Support in a Reclining WheelchairAA11108172 |
"/KOBARA, Kenichi/"KOBARA, Kenichi ,
"/FUJITA, Daisuke/"FUJITA, Daisuke ,
"/OSAKA, Hiroshi/"OSAKA, Hiroshi ,
"/TAKAHASHI, Hisashi/"TAKAHASHI, Hisashi ,
"/ITO, Tomotaka/"ITO, Tomotaka ,
"/SUEHIRO, Tadanobu/"SUEHIRO, Tadanobu ,
"/KUNIYASU, Katsushi/"KUNIYASU, Katsushi ,
"/WATANABE, Susumu/"WATANABE, Susumu
21
(
2
)
, pp.13
-
22 , 2016
ISSN:1341-5077
NCID:AA11108172
Description
The purpose was to investigate the cause of the increased horizontal force applied to the buttocks in the fully reclined position of back support on a reclining wheelchair with a rotational axis of back support which was located at the same position as the greater trochanter. The subjects were 15 healthy adult men. The forces were measured using a force plate on the experimental chair. And, we measured the trunk sliding distance along the back support. A comfortable sitting posture in the chair was selected for measurement. Under the rear-axis condition, the rotational axis of the back support was located at the point farthest back in the seat. Under the trochanter-axis condition, the rotational axis was located at the same position as the greater trochanter. In the fully reclined position, the horizontal forces under the rear-axis and trochanter-axis condition were 9.4 ± 1.2 and 15.6 ± 1.7% Body Weight, respectively ( p < 0.01), and the trunk sliding distances were 71.3 ± 10.6 and − 1.3 ± 7.4mm, respectively ( p < 0.01). These results suggested that the horizontal forces applied to the buttocks were changed by the trunk sliding along the back support in the fully reclined position.
Full-Text
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