Effect of isometric and isokinetic muscle training on static strength and dynamic power |
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Authors: | H Kanehisa M Miyashita |
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Institution: | (1) Laboratory for Exercise Physiology and Biomechanics, Faculty of Education, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan |
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Abstract: | Summary This study investigated whether isokinetic strength training might induce changes in static and dynamic power already achieved as a result of isometric strength training. The subjects were twelve males. The isometric strength and dynamic power of elbow flexors were tested by means of an electric dynamometer and fly-wheel every two weeks. During the first 8 weeks all subjects trained the elbow flexors isometrically at four different positions of elbow joints. This training produced 27–36% gains in isometric strength and 34–46% in power. Thereafter the subjects were divided into two groups: the FG group who trained isokinetically at a fast velocity of 157 ·s–1, and the SG group at slow velocity of 73 ·s–1. After 6 weeks of training, the FG group produced a significant gain in power with light equivalent masses and the SG group did so with heavy equivalent masses. Neither group showed change in isometric strength. |
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Keywords: | Isometric Isokinetic Dynamic power Elbow flexors |
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