Kinematic analysis during toe-gripping strength exertion: angular changes in the ankle joint and leg muscle activities.
Kinematic analysis during toe-gripping strength exertion: angular changes in the ankle joint and leg muscle activities.
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DOI：
10.1589/jpts.27.1957
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发表时间：
2015-06
影响因子：
--
通讯作者：
Miyazaki J
中科院分区：
文献类型：
--
作者：
Soma M;Murata S;Kai Y;Nakae H;Satou Y;Murata J;Miyazaki J
[目的]研究足趾夹持过程中踝关节角度变化和下肢肌肉活动变化，并探讨这些变化与足趾夹持力的关系。[研究对象] 11名健康青年女性。[方法]测量患者夹趾时的夹趾力、踝关节角度变化及下肢肌肉活动。[结果]从中立位开始，踝关节背屈角度平均变化3°，与夹趾力呈正相关（r = 0.61）。因此，脚趾夹紧强度随着背屈角度的增加而增加。关于腿部肌肉活动，胫骨前肌和腓肠肌内侧头的活动与脚趾夹紧力呈正相关（r = 0.75和r = 0.72，分别）。[结论]由于踝关节的固定，踝关节背屈以产生较大的夹趾力，同时小腿肌肉也发生收缩。
[Purposes] To investigate angular changes in the ankle joint and leg muscle activities during toe-gripping, and to examine the relationship between these changes and toe-gripping strength. [Subjects] Eleven healthy young women were selected. [Methods] We measured the toe-gripping strength, angular changes in the ankle joint, and leg muscle activities of all patients during toe-gripping. [Results] The mean change in the ankle angle in dorsiflexion from a neutral position was 3°, and a positive correlation was observed between this angle and toe-gripping strength (r = 0.61). Thus, toe-gripping strength increased with the angle of dorsiflexion. Regarding the leg muscle activities, activities of the tibialis anterior muscle and medial head of the gastrocnemius muscle demonstrated positive correlations with toe-gripping strength (r = 0.75 and r = 0.72, respectively). [Conclusion] These findings suggest that the ankle dorsiflexes in order to exert great toe-gripping strength, and the crural muscles contract simultaneously because of ankle fixation.