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タイトル: Relationships between stretch-shortening cycle performance and maximum muscle strength
著者: Miyaguchi, Kazuyoshi
Demura, Shinichi link image
宮口, 和義
出村, 愼一
発行日: 2008年 1月
出版社(者): Human Kinetics
雑誌名: Journal of Strength and Conditioning Research
ISSN: 1064-8011
巻: 22
号: 1
開始ページ: 19
終了ページ: 24
キーワード: 1 RM bench press
Counter-movement
Elbow flexion
Isokinetic strength
Muscle power
抄録: This study aimed to examine the relationships between muscle power output using the stretch-shortening cycle (SSC) and maximum strength, as measured by the 1 RM (1 repetition maximum) test and the isokinetic dynamometer under elbow flexion. Sixteen trained, young adult males pulled a constant load of 40% MVC (maximum voluntary elbow flexion contraction) by ballistic elbow flexion under the following two preliminary conditions: 1) the static relaxed muscle state (SR condition) and 2) using the SSC (SSC condition). Muscle power was determined from the product of the pulling velocity and load mass by a power measurement instrument with a rotary encoder. The 1 RM bench press (1RM BP) and isokinetic maximum strength under elbow flexion with the Cybex-325 were measured as indicators of dynamic maximum strength. 1) The early power output exerted under the SSC condition showed a significant and high correlation with the 1 RM BP (r = 0.83), but only moderate correlation with the isokinetic muscle strength (r = 0.50-0.67). 2) The contribution of the 1 RM BP to the early muscle contraction velocity exerted under the SSC condition was large. These results suggested that muscle power exerted using the SSC shows a stronger relationship with maximum muscle strength measured by a 1 RM test rather than isokinetic maximum strength. © 2008, National Strength and Conditioning Association.
URI: http://hdl.handle.net/2297/19132
資料種別: Journal Article
版表示: publisher
出現コレクション:1-4.査読済論文(教育)

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