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Please use this identifier to cite or link to this item: http://ir.jwcpe.ac.jp/dspace/handle/123456789/1135

Title: サッカー選手における股関節屈曲筋群の形態および筋力の性差
Other Titles: Gender differences in muscle volume and strength in hip flexor muscles in soccer players.
Authors: 手島, 貴範
角田, 直也
Teshima, Takanori
Tsunoda, Naoya
テシマ, タカノリ
ツノダ, ナオヤ
Research Institute of Physical Fitness, Japan Women’s College of Physical Education
Faculty of Physical Education, Kokushikan University
Keywords: Hip flexion
Gender difference
Psoas major
Iliacus
Issue Date: Mar-2019
Abstract: It is not fully understood whether structural and functional differences exist in the hip flexor muscles between males and females of soccer players. We examined the crosssectional area (CSA) and the muscle volume (MV) of hip flexor muscles (the psoas major and iliacus muscles) in 9 males and 9 females of college soccer players using by magnetic resonance imaging. MV was calculated by the sum of each CSA (psoas major and iliacus muscles), which was determined by tracing the images, and then multiplying the CSA with the slice thickness. The isometric torque during maximal hip flexion were determined by BIODEX system. Absolute values of CSA, MV and maximal torques in females averaged, respectively, 62.0%,63.9%, and 76.4% that of males. Moreover, these significant differences between genders obtained when comparing relative values to fatfree mass (FFM) except for hip flexion torque. Relative hip flexion torque to the FFM and MV were not observed significantly gender differences in soccer players. In female soccer players, there were not significantly corelated to the hip flexion torque. These results indicate that there were gender differences not only muscle volume of hip flexors muscles but also the functional individual differences of the muscular strength.
URI: http://ir.jwcpe.ac.jp/dspace/handle/123456789/1135
ISSN: 09183825
Appears in Collections:No.28

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