2C2-03 直立時の人間の足底面内の重心動揺特性に関する研究 : 健常者とスポーツ選手の比較(バイオメカニクス)

概要

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Center-of-gravity sway measured by gravicorder is caused by torque fluctuation of toe joint in order to keep the standing posture. This study aims at making clear the characteristics of center-of-gravity sway of healthy men and athletes by taking the pasture of standing upright. The cross sections of groups of crus muscles were measured using the MRI and the measurement results of the characteristics of center-of-gravity sway were related with the magnitude of the cross section area. As a results of this study, (1) The center-of-gravity sway of the athletes is small in comparison with that of the healthy men who do not do any sports daily. (2) The center-of-gravity sway of the subjects, who the cross sections of crus muscles are larger, is generally smaller. (3) The center-of-gravity sway of the healthy subjects with their eyes closed occurs mainly in the longitudinal direction. On the other hand, the sway of the athletes occurs in the vicinity of the center of gravity and is small. (4) The magnitude of center-of-gravity sway with their eyes closed becomes larger than that with their eyes open.
2006-09-10