期刊
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
卷 71, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jelekin.2023.102781
关键词
Quadratus plantae; Fine -wire electromyography; Multi -segment foot model
This study aimed to clarify the functional relationship between intrinsic and extrinsic muscles during walking. It was found that the onset time of the intrinsic muscles was earlier than that of the extrinsic muscles, and in the late propulsion phase, the activity of the extrinsic muscles decreased while the intrinsic muscles remained active. This suggests that the intrinsic muscles play an important role in stabilizing the foot and contributing to propulsion during walking.
The intrinsic and extrinsic muscles are considered to stabilize the foot and contribute to propulsion during walking. This study aimed to clarify the functional relationship between intrinsic and extrinsic muscles during walking. Thirteen healthy men participated in this study. The muscle activities of the intrinsic muscles (quadratus plantae and abductor hallucis), and the extrinsic muscles (flexor hallucis longus, flexor digitorum longus, and tibialis posterior) were measured using fine-wire and surface electromyography during walking. The muscle onset timing after foot contact was calculated and compared among muscles using the one-way ANOVA. The stance phase was divided into early and late braking, and early and late propulsion phases. Muscle activity among phases was compared using repeated-measures ANOVA. The onset time of the abductor hallucis was significantly earlier than those of the flexor digitorum longus and tibialis posterior. The quadratus plantae demonstrated significantly earlier onset than that of the tibialis posterior. In the late propulsion phase, the activity of extrinsic muscles decreased, whereas intrinsic muscles were continuously active. Early activation of the intrinsic muscles may stabilize the foot for efficient torque production by the extrinsic muscles. Furthermore, the intrinsic muscles may contribute to the final push-off after the deactivation of extrinsic muscles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据