레슬링 선수의 등속성 근력과 근 구조적 특성 및 하지근력 불균형의 비교 분석 = Comparative analysis of isokinetic muscular strength, muscle architecture and lower extremity muscle strength in elite wrestlers

국문 초록 (Abstract)

이 연구에서는 레슬링 선수의 등속성 근력, 근 구조적 특성 및 하지근력 불균형을 비교 분석하는데 그 목적이 있다. 이 연구의 대상은 대한레슬링협회에 등록된 레슬링 선수 11명으로 하였으며, 모든 대상자들은 등속성 근력(60°/sec, 180°/sec) 및 외측광근, 대퇴직근 및 내측광근의 구조적 특성(두께, 깃각, 근속길이)을 측정하였다. 우세측과 비우세측의 등속성 근력과 근 구조적 특성을 비교하기 위해 종속표본 t-검정을 실시였으며, 불균형 비율을 구하는 공식[(우세측-비우세측)/우세측 × 100]을 이용하여 모든 변인의 불균형 비율을 구하였다. 60°/sec의 최대근력(p<.001), 외측광근의 두께(p<.01)와 깃각(p<.05) 및 대퇴직근의 깃각(p<.05)은 우세측이 비우세측에 비해 높은 것으로 나타났으며, 불균형 비율은 60°/sec의 최대근력 12%, 외측광근의 깃각 12.5%, 대퇴직근의 깃각 11.7%로 나타났다. 따라서 이 연구에서 60°/sec의 최대근력에서 우세측과 비우세측의 차이는 외측광근의 두께, 깃각 및 대퇴직근의 깃각의 구조적 특성에 의해 발생될 수 있다는 사실을 확인하였으며, 특히 깃각은 레슬링 선수의 하지근력 불균형을 확인할 수 있는 평가 지표로서 활용될 수 있다고 판단된다.

다국어 초록 (Multilingual Abstract)

The purpose of this study is to comparative analysis of isokinetic muscular strength, muscle architecture, lower extremity muscle strength in elite wrestlers. The subjects were eleven wrestlers registered with the Korea Wrestling Federation. Isokinetic muscular strength (60°/sec, 180°/sec), vastus lateralis and rectus femoris muscle architecture (thickness, pennation angle, fascicle length) were measured. To compare the isokinetic muscular strength and architecture of the dominant and non-dominant sides, the dependent sample t-test was performed and the formula for calculating all variables imbalance ratio [(dominant-non-dominant) / dominant side × 100] was used. Dominant side was higher than the nom-dominant side at the peak torque of 60°/sec, vastus lateralis muscle thickness and pennation angle and rectus femoris muscle thickness. the proportion of imbalance was 12% of peak torque at 60°/sec, 12.5% of the vastus lateralis muscle pennation angle and 11.7% of the rectus femoris muscle pennation angle. Therefore, in this study, it was confirmed that the difference between the dominant and non-dominant sides of peak torque at 60°/sec could be caused by the architecture of vastus lateralis muscle thickness and pennation and rectus femoris muscle pennation. Especially, it is thought that pennation angle can be used as an evaluation index to identify wrestler’s lower extremity muscle imbalance.

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