Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Acute Effect of Isokinetic Muscle Strength Related to the Static Stretching of Knee Joint

무릎관절 정적 스트레칭 빈도에 따른 등속성 근력의 급성 효과

  • Published : 2008.12.30
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Abstract

The purpose of this study was to provide foundations for proper stretching method not to lose muscle strength caused by shrink of muscle for preventing injury and improving performance when we make training programs. This study compared and analyzed isokinetic variables related to the static stretching frequency of knee joint extensor by isokinetic instruments applied to normal adults. 45 normal adults are randomly sampled into 3 different groups. All the measured variables were processed with SPSS and, means and standard deviations at each angle speed were calculated. The difference of means between before and after stretching of each groups were processed by paired t-test. One-way ANOVA and after test(Duncan) This study was able to see that stretching decrease acute isokinetic muscle strength High frequency stretching group showed more efficient decrease of muscle strength than low frequency stretching group. As a result, making training program for a game requiring strong muscle strength should consider proper stretching method not to lose muscle strength.

본 연구는 정상 성인들을 대상으로 등속성 기구를 이용하여 무릎관절 신근 정적 스트레칭 빈도에 따른 등속성 변인들을 비교 분석함으로써 적절한 스트레칭에 대한 기초 자료를 제공하는데 목적이 있다. 45명의 대상자를 무작위 추출하여 3 Group 으로 각각 15명씩 나뉘었고, 우세측 다리의 무릎관절 신근 스트레칭으로 이루어진 4가지 정적 스트레칭 운동을 순서대로 각각 2회, 4회, 6회 실시하였다. 스트레칭이 끝나면 등속성 근력 검사를 실시하였다. 통계학적 처리는 paired t-test, 일원변량분석(one-way ANOVA)과 사후검정(Duncan)을 실시하였다. 결과는 스트레칭이 급성 등속성 근력의 저하를 가져오는 것을 알 수 있다. 또한 스트레칭 빈도에 따른 근력 변화에 있어선 4회 스트레칭 집단에서 보다 효과적인 근력의 감소를 나타내었다. 따라서 강한 근력을 필요로 하는 경기에 있어서 근육의 능력을 상실하지 않는 적절한 스트레칭 방법에 대한 고려가 필요할 것으로 생각된다.

Keywords

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