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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
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

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/2297/19132



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