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물의 관성 부하 훈련이 만성 발목 불안정성을 가진 축구동호인의 동적 안정성과 기능적 움직임에 미치는 영향
강슈호,조한서,박일봉 한국체육무용과학회 2024 Journal of Sport and Dance Science Vol.4 No.1
Objectives The purpose of this study was to investigate the effects of inertial load of water training on amateur football players with chronic ankle instability. Methods This study targeted 8 amateur football players with chronic ankle instability identified through the Functional Ankle Instability Index (IdFAI) classification questionnaire. The research aimed to validate the effects of water inertia loading training. Dynamic stability, considering sports specificity, was assessed by measuring Center of pressure(COP) during drop landing and Y-balance test before and after the training. Collected data underwent paired t-tests to compare the changes before and after the training. Results During drop landing, the variables of COP parameters, including range, displacement, and velocity, were significantly reduced in both the left and right legs, confirming an improvement in dynamic stability. In the Y-balance test, scores increased on both the left and right legs, indicating enhanced single-leg weight-bearing function. Conclusions The training program utilizing inertial load of water has been demonstrated as an effective training method for improving dynamic stability and functional movement in amateur football players with chronic ankle instability. 본 연구는 물의 관성 부하 훈련이 만성적 발목 불안정성을 가진 축구동호인의 동적 안정성과 기능적 움직임에 미치는 영향에 대해 조사하는 것을 목적으로 하였다. 이와 같은 연구목적을 이루기 위해 축구 팀 활동 경력이 10년 이상 되는 축구동호인 중 기능적 발목관절 불안정성 분류 설문지(IdFAI)를 통해 선정된 총 8명을 대상으로 하여 훈련 전과 후 비교에 대해 분석하였다. 동적 안정성에 대한 연구결과도출을 위하여 30cm 박스위에서 내려와 한 다리 착지하는 드롭 랜딩으로 압력중심점을 측정하였고, 한 다리 지지로 기능적 움직임을 평가하기 위한 Y-균형검사를 실시하였다. 자료처리 방법은 IBM Statistics SPSS Win ver. 28.0 프로그램을 사용하였다. 8명의 훈련 전과 후를 비교하기 위해 대응표본 t-검정(paired t-test)을 실시하였다. 이상과 같은 연구방법을 적용하여 도출된 결론은 다음과 같다. 첫째, 물의 관성 부하 훈련을 시행한 축구동호인들의 한 다리 착지의 안정성이 향상되었다. 둘째, 물의 관성 부하 훈련은 시행한 축구동호인들의 기능적인 움직임이 향상되었다. 따라서 물의 관성 부하 훈련 프로그램은 만성 발목 불안정성을 가진 축구동호인의 동적 안정성과 기능적 움직임을 향상시키는 데 효과적인 것으로 나타났다.
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배드민턴 선수들의 푸쉬 동작 시 중량 및 워터백 조끼에 따른 EMG 분석연구
강슈호,이자연,박일봉 대한체육학회 2023 대한스포츠융합학회지 (jcses) Vol.21 No.3
The purpose of this study is to verify dynamic EMG differences according to weight and waterbag vest wearing in push movements among the most frequently used movements in badminton game. In the realm of athletic training, methods that consider the specificity of sports are crucial. Training while wearing a waterbag vest, utilizing an inertial load of water, holds the advantage of being highly applicable to transferable training. However, research in this area is still limited. In this study was executed to verify the effect of training wearing a waterbag vest that considers sports specificity and training transfer well during badminton training on injury prevention and functional dynamic stability in racket sports. In this study, 16 female badminton players (age: 20.31±0.91, height: 167.07±5.15, weight: 63.62±6.12) were divided into 8 weight and 8 waterbag vest groups, respectively, and muscle activity in 6 parts in the abdomen and lower extremities was measured through EMG to analyze the effect on dynamic stability of each group. The measurement section measured and analyzed the difference in muscle activity between wearing a waterbag vest and a weight vest after landing in the lunge position in the push motion. The EMG analysis results for the six muscles measured in this study are as follows. The average muscle activity of the water vest wearing group is significantly greater than that of the weight vest wearing group in the rectus femoris, semitendinosus, semimembranosus, external oblique, and internal oblique muscles (p<.05). It was found to be high, and there was no significant difference in the biceps femoris muscle. In conclusions, the movement of wearing a waterbag vest using an inertial load of water has been shown to be effective in increasing the stability of the lower extremities and torso during the deceleration of the athletes by causing higher muscle activity than the weight vest due to unpredictable irregular water movements.
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