유스 축구선수들의 외측 발목 염좌 병력 유무에 따른 달리기 생체역학 차이
Altered Running Biomechanics in Youth Soccer Players with a Lateral Ankle Sprain History
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[목적] 본 연구는 외측 발목 염좌 병력이 있는 중등부 축구선수와 외측 발목 염좌 병력이 없는 중등부 축구선수 간 달리기 시 움직임 패턴의 차이 여부를 확인하기 위해 수행되었다. [방법] 외측 발목 염좌 병력이 있는 중등부 축구선수(lateral ankle sprain, LAS 그룹) 6명과 대조군 6명을 모집하여총 12명이 본 연구에 참여하였다. 모든 연구대상자는 신체계측 및 주관적 발목 기능 설문지를 작성하였으며 이후 동작분석을 위해 반사마커를 신체에 부착한 후 3회의 달리기 동작을 촬영하였다. 한걸음주기 동안의 발목, 무릎, 엉덩관절 각도가 산출되었으며 그룹별 평균 및 95% 신뢰구간을 산출하여 앙상블 곡선 분석을 수행하였다. [결과] LAS 그룹은 대조군에 비해 달리기 시 초기접지, 흔듦기전, 후기흔듦기 동안 유의하게 작은 발목의 발등굽힘 각도와 큰 안쪽들림 각도를 보여주었다. 그 외 다른 관절과 운동면에서 유의한 차이는 관찰되지 않았다. [결론] 본 연구의 결과를 통해 관찰된 발목의 운동학적 특성이 외측 발목 염좌의 위험요인이라고 제시할 수 없으나, 후속연구에서 본 연구의 결과를 토대로 내재적 위험요인에 하지의 생체역학적 움직임 패턴도 추가한 전향적 분석을수행한다면 보다 정확한 외측 발목 염좌의 위험요인을 도출할 수 있을 것으로 생각된다
Abstract
PURPOSE This study aimed to identify movement pattern differences in the running of youth soccer players with and without lateral ankle sprain (LAS) histories. METHODS A total of 12 participants were recruited and assigned to the LAS group or the control group. All participants were assessed for anthropometric data, and they filled in the subjective ankle function questionnaires. Then, reflective markers were attached to their bodies, and they were instructed to run at the preferred speed on the 9-m runway thrice. 3D joint angles for ankle, knee, and hip joints were exported, and their mean values and 95% confidence intervals were calculated. Ensemble curve analysis was conducted to compare running kinematics between the groups. RESULTS The LAS group exhibited fewer dorsiflexion angles and more inversion angles compared to the control group. Excluding the dorsiflexion deficits and more inverted ankles, there were no significant differences between the groups. CONCLUSIONS Although the ankle kinematic patterns found in this paper are not considered LAS risk factors, it will be able to identify precise LAS risk factors with prospective design (e.g., lower extremity movement patterns) as well as intrinsic risk factors.
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