title: Activity of the Femoral Muscles during Toe-gripping Action.
abstract: [Purpose] In the present study, we investigated femoral muscle activity during toe-gripping, and the role of the femoral muscles in toe-gripping strength. [Subjects] Fourteen healthy young women were selected. [Methods] We measured the maximum voluntary contraction of the rectus femoris and long head of the biceps femoris muscles. We then calculated the percent integrated EMG (%IEMG) during the toe-gripping action. [Results] We found that the %IEMG of the biceps femoris was significantly higher than that of the rectus femoris. Moreover, a significant positive correlation was found between the %IEMG of the rectus femoris and that of the biceps femoris. [Conclusion] These results suggest that femoral muscles co-contract during the toe-gripping action, and thus possibly contribute to knee joint stability.
authors.affiliation: Course of Rehabilitation, Department of Health Sciences, Tohoku Fukushi University, Japan.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Soma
authors.affiliation: Course of Physical Therapy, Department of Health Sciences, Kyoto Tachibana University, Japan.
authors.forename: Shin
authors.initials: S
authors.lastname: Murata
authors.affiliation: Course of Physical Therapy, Department of Health Sciences, Kyoto Tachibana University, Japan.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Kai
authors.affiliation: Course of Rehabilitation, Department of Health Sciences, Tohoku Fukushi University, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Nakae
authors.affiliation: Course of Rehabilitation, Department of Health Sciences, Tohoku Fukushi University, Japan.
authors.forename: Yousuke
authors.initials: Y
authors.lastname: Satou
keywords: Activity of muscle; Healthy females; Toe-gripping strength