跳遠選手膝關節屈伸肌等速肌力與運動表現之相關

Relationships among Isokinetic Knee Flexor, Extensor and Performance in Long Jumpers

10.5297/ser.200606_8(2).0011

王國慧(Kuo-Hui Wang)；潘寶如(Pao-Ru Pan)

跳遠 ； 等速肌力 ； 屈／伸肌比值 ； long jump ； isokinetic strength ； F/E ratios

大專體育學刊

8卷2期（2006 / 06 / 30）

133 - 139

繁體中文;英文

This study examined the relationships among concentric isokinetic knee flexor, extensor ratios (F/E ratios), peak torque (PT) and performance in long jumpers. Eighteen subjects participated in this study. All subjects performed three (60°/s) and five (120°/s, 180°/s and 240°/s) maximal knee extension and flexion efforts of both legs under concentric conditions. Pearson Product Moment Correlation analyses were conducted to determine the relationships among the peak torque, flexor/extensor ratios and long jump performance. The significance level was set at p＜.05. The average torque at 60°/s, 120°/s, 180°/s and 240°/s were 227.80±21.83 Nm、178.84±26.13 Nm、148.69±26.09 Nm、121.04±30.60 Nm in knee flexor and 148.77±21.88、137.13±18.57、121.72±16.15、100.53±21.22Nm in knee extensor, respectively. The F/E ratios ranged from 65.60 to 93.84%. The peak torque decreased as the velocity of the test increased, but the F/E ratios increased as the velocity of the test increased. There were, however, no significant relationships between the PT, F/E ratios and long jump performance (p＞.05). In conclusion, coaches and long jumpers may use these findings in evaluating and planning exercise programs during training and rehabilitation.

This study examined the relationships among concentric isokinetic knee flexor, extensor ratios (F/E ratios), peak torque (PT) and performance in long jumpers. Eighteen subjects participated in this study. All subjects performed three (60°/s) and five (120°/s, 180°/s and 240°/s) maximal knee extension and flexion efforts of both legs under concentric conditions. Pearson Product Moment Correlation analyses were conducted to determine the relationships among the peak torque, flexor/extensor ratios and long jump performance. The significance level was set at p＜.05. The average torque at 60°/s, 120°/s, 180°/s and 240°/s were 227.80±21.83 Nm、178.84±26.13 Nm、148.69±26.09 Nm、121.04±30.60 Nm in knee flexor and 148.77±21.88、137.13±18.57、121.72±16.15、100.53±21.22Nm in knee extensor, respectively. The F/E ratios ranged from 65.60 to 93.84%. The peak torque decreased as the velocity of the test increased, but the F/E ratios increased as the velocity of the test increased. There were, however, no significant relationships between the PT, F/E ratios and long jump performance (p＞.05). In conclusion, coaches and long jumpers may use these findings in evaluating and planning exercise programs during training and rehabilitation.

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