Kinematic analysis during toe-gripping strength exertion: angular changes in
the ankle joint and leg muscle activities |
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| Authors: | Masayuki Soma Shin Murata Yoshihiro Kai Hideyuki Nakae Yousuke Satou Jun Murata Junya Miyazaki |
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| Affiliation: | 1) Course of Rehabilitation, Department of Health Sciences, Tohoku Fukushi University, Japan;2) Course of Physical Therapy, Department of Health Sciences, Kyoto Tachibana University, Japan;3) Department of Health Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Japan |
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| Abstract: | [Purposes] To investigate angular changes in the ankle joint and leg muscle activitiesduring toe-gripping, and to examine the relationship between these changes andtoe-gripping strength. [Subjects] Eleven healthy young women were selected. [Methods] Wemeasured the toe-gripping strength, angular changes in the ankle joint, and leg muscleactivities of all patients during toe-gripping. [Results] The mean change in the ankleangle in dorsiflexion from a neutral position was 3°, and a positive correlation wasobserved between this angle and toe-gripping strength (r = 0.61). Thus,toe-gripping strength increased with the angle of dorsiflexion. Regarding the leg muscleactivities, activities of the tibialis anterior muscle and medial head of thegastrocnemius 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-grippingstrength, and the crural muscles contract simultaneously because of ankle fixation.Key words: Toe-gripping strength, Angle of the ankle joint, Kinematic analyses |
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