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KMID : 0359420060240010044
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Korean Journal of Sports Medicine
2006 Volume.24 No. 1 p.44 ~ p.47
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The Effects of Respiration on Knee Isokinetic Exercise of Normal Person
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Song Sun-Hong
Koo Jung-Hoi
Yoon Se-Jin
Park Jun-Yong
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Abstract
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We evaluate the effects of inspiring and expiring on the power generation during lower extremity isokinetic exercise. The thirty-four healthy young volunteers were examined for knee extenion and flexion using a dynamometer at 60 deg/sec. At first, they extened their dominant leg with expiration and flexed with inspiration, and this was followed conversely, by extension with inspiration and flexion with expiration. The peak torque(PT) was assessed. In results, male subjects of knee extension PT was 154.2±32.2Nm during the expiration and 143.5±30.4Nm during inspiration(p<0.05) and knee flexion PT was 80.2±26.1Nm during expiration and 73.0±26.6Nm during inspiration(p<0.05). In females, knee extension PT was 94.5±18.7Nm during expiration and 92.8±13.0Nm during inspiration and knee flexion PT was 39.6±7.8Nm during expiration and 33.4±11.0Nm during inspiration. We consider that respiration has a influence on lower extremity exercise and that greater peak torque is produced during expiration than during inspiration.
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KEYWORD
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Exercise, Respiration
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