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坐到站立的生物力學探討:限制踝關節角度對髖關節的影響

Biomechanics of Transfer from Sitting to Standing: Effects of Limited Ankle Range on the Hip Joint

摘要


The purpose of this study was to study the effects of limited ankle range on hip joint during rising from the chair. The mechanics of the both hip joints were analyzed in 14 young, healthy adult subjects when rising from a seated position with the use of a motion analysis system and force platforms. Mechanics of the hip joint were described in terms of angles and moments while rising from the seat heights corresponding to 80, 100, and 110% of subject's knee joint height, and under conditions of ankle free and ankle constrained. An analysis of variance with repeated measures showed the following results: 1) There were significant differences in peak angle value of left hip joint rising from any of the three seat heights and of right hip joint rising from the chair with 80% knee joint height when comparing between ankle conditions. 2) There was a tendency that the peak moment of the hip joints in the ankle constrained group was greater than that of the ankle free group. 3) The differences between two peak moments of left joint rising from three seat heights and of right hip joint rising from the chair with 80% knee joint height were significant. The study implies that limited range of ankle joint has influences on the hip joint, so it is important to keep the angle of the ankle joint as free as possible to prevent the abnormal changes on the hip joints.

並列摘要


The purpose of this study was to study the effects of limited ankle range on hip joint during rising from the chair. The mechanics of the both hip joints were analyzed in 14 young, healthy adult subjects when rising from a seated position with the use of a motion analysis system and force platforms. Mechanics of the hip joint were described in terms of angles and moments while rising from the seat heights corresponding to 80, 100, and 110% of subject's knee joint height, and under conditions of ankle free and ankle constrained. An analysis of variance with repeated measures showed the following results: 1) There were significant differences in peak angle value of left hip joint rising from any of the three seat heights and of right hip joint rising from the chair with 80% knee joint height when comparing between ankle conditions. 2) There was a tendency that the peak moment of the hip joints in the ankle constrained group was greater than that of the ankle free group. 3) The differences between two peak moments of left joint rising from three seat heights and of right hip joint rising from the chair with 80% knee joint height were significant. The study implies that limited range of ankle joint has influences on the hip joint, so it is important to keep the angle of the ankle joint as free as possible to prevent the abnormal changes on the hip joints.

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