Muscle Activity Pattern with A Shifted Center of Pressure during the Squat Exercise.

• Material Type: 博士論文
• Title: Muscle Activity Pattern with A Shifted Center of Pressure during the Squat Exercise.
• Author/Editor: Kitamura, Tetsuro; Kido, Akira; Ishida, Yukako; Kobayashi, Yasuyo; Tsukamoto, Shinji; Tanaka, Yasuhito
• Author Heading: Kitamura, Tetsuro; Kido, Akira; Ishida, Yukako; Kobayashi, Yasuyo; Tsukamoto, Shinji; Tanaka, Yasuhito
• Publication, Distribution, etc.: Department of Sports Medicine : Medical Faculty of Uludag University
• Publication Date: 2019-06-01
• Publication Date (W3CDTF): 2019-06-01
• Alternative Title: スクワット運動における圧中心の移動による筋活動パターン
• Periodical title: Journal of sports science and medicine
• No. or year of volume/issue: 18 2
• Volume: 18
• Issue: 2
• Pages: 248-252
• ISSN (Periodical Title): ISSN : 1303-2968
• Degree grantor/type: 奈良県立医科大学
• Date Granted: 2019-12-05
• Dissertation Number: 甲第723号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: Body weight squats; surface electromyogram; stabilometer; forward-shifted posture; rehabilitation
• Target Audience: 一般
• Note (General): type:Thesis; The squat exercise is a fundamental movement in athletic training and rehabilitation. In this study, we measured muscle activities in a normal squat posture (NSP) and a squat posture with the center of foot pressure (COP) intentionally shifted forward as far as possible (FSP). Ten healthy men performed double-limb squats, adopting the NSP and FSP, with three knee flexion angles (30, 60, and 90 degrees). The muscle activities of the vastus medialis (VM), semitendinosus (ST), tibialis anterior (TA), and gastrocnemius muscle lateral head (GL) were measured using surface electromyography, and activity patterns were analyzed. Compared to that for the NSP, the COP was significantly shifted forward in the FSP by at least 30% of the foot length for all knee flexion angles (p < 0.05). At all knee flexion angles, VM muscle activity significantly decreased, while GL muscle activity increased, in the FSP compared to that for the NSP (p < 0.05). In addition, ST muscle activity increased significantly in the FSP compared to that for the NSP at knee flexion angles of 30 and 60 degrees (p < 0.05). TA muscle activity significantly decreased in the FSP compared to that for the NSP at only 90 degrees of knee flexion (p < 0.05). These results demonstrate that muscle activity patterns vary significantly according to squat posture. Thus, the active control of the COP position during the squat can be a new training approach in targeting specific muscle groups.; 博士（医学）・甲第723号・令和元年12月5日; ©Journal of Sports Science and Medicine (2019); This work is licensed under a Creative Commons License CreativeCommons Attribution-NonCommercial-NoDerivatives 4.0 International License(https://creativecommons.org/licenses/by-nc-nd/4.0/); identifier:Journal of sports science and medicine Vol.18 No.2 p.248-252 (2019 Jun); identifier:13032968; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/3694; identifier:Journal of sports science and medicine, 18(2): 248-252
• Access Restrictions: インターネット公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 奈良県立医科大学 : 奈良県立医科大学機関リポジトリ GINMU

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