健常者平地裸足歩行時の中足指節関節モーメント(3部運動機能の復元)

概要

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The functional role of the moments acting at the Metatarsophalangeal joints of the foot (MP moment) during biped human locomotion is discussed in relation to the time sequence of the foot contact events of both feet and to the controllability of the angular momentum of the whole body. Theoretical consideration of the foot contact sequence indicated that the MP moment is critical in controlling the angular momentum of the whole body during the period between heel-off of the ipsilateral foot and heel-contact of the contralateral foot, so that the body does not fall down and excessive loading on the forelimb is prevented. The MP moment was measured in normal bare-footed level walking for two adult subjects both in steady state walking and at initiation of walking, each under slow, normal, and fast conditions. The results showed that the MP moment is as large as one fifth to one third of the maximum plantar flexion ankle joint moment, and increased with an increase in walking pace. Thus, it was demonstrated that the MP moment plays an important role in controlling the angular momentum of the whole body in the late stage of the single support and the early stage of the double support, and cannot be neglected.
バイオメカニズム学会の論文
1994-08-10