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タイトル: Muscle Power Output Properties Using the Stretch-shortening Cycle of the Upper Limb and Their Relationships with a One-Repetition Maximum Bench Press
著者: Miyaguchi, Kazuyoshi
Demura, Shinichi link image
出村, 慎一
発行日: 2006年 5月
出版社(者): 日本生理人類学会
雑誌名: Journal of physiological anthropology and applied human science
ISSN: 1880-6791
巻: 25
号: 3
開始ページ: 239
終了ページ: 245
キーワード: stretch-shortening cycle
upper limb
muscle power
bench press
抄録: The purpose of this study was to examine the output properties of muscle power by the dominant upper limb using SSC, and the relationships between the power output by SSC and a one-repetition maximum bench press (1 RM BP) used as a strength indicator of the upper body. Sixteen male athletes (21.4±0.9yr) participated in this study. They pulled a load of 40% of maximum voluntary contraction (MVC) at a stretch by elbow flexion of the dominant upper limb in the following three preliminary conditions: static relaxed muscle state (SR condition), isometric muscle contraction state (ISO condition), and using SSC (SSC condition). The velocity with a wire load via a pulley during elbow flexion was measured accurately using a power instrument with a rotary encoder, and the muscle power curve was drawn from the product of the velocity and load. Significant differences were found among all evaluation parameters of muscle power exerted from the above three conditions and the parameters regarding early power output during concentric contraction were larger in the SSC condition than the SR and ISO conditions. The parameters on initial muscle contraction velocity when only using SSC significantly correlated with 1RM BP (r=0.60-0.62). The use of SSC before powerful elbow flexion may contribute largely to early explosive power output during concentric contraction. Bench press capacity relates to a development of the above early power output when using SSC.
URI: http://hdl.handle.net/2297/12242
資料種別: Journal Article
権利関係: 日本生理人類学会;本文データは日本生理人類学会の許諾に基づきCiNiiから複製したものである
版表示: publisher

このアイテムを引用あるいはリンクする場合は次の識別子を使用してください。 http://hdl.handle.net/2297/12242



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