사이드 커팅 시 방향 예측 유무와 성별에 따른 신경근 조절 패턴 비교분석 연구 = A Comparative Study on Neuromuscular Control Patterns during Side Cutting Depending on Direction Prediction Presence or Absence and Gender

국문 초록 (Abstract)

[목적] 본 연구는 건강한 일반인을 대상으로 사이드 커팅 시 방향 예측 유무와 성별에 따른 하지 근육 활성을 비교분석하는데 있다.
[방법] 총 14명의 건강한 남녀(남자 8명, 여자 6명)가 참여했다. 12m의 거리를 전속력으로 달려 무작위로 지시한 방향과 고정된 방향으로 45도 사이드 커팅을 실시하였다. 동시에 골반 부착된 관성센서를 통해 수직 가속도를 수집하고, 사이드 커팅 시점 및 입각기 시간을 구하기 위해 동작 동조 웹캠이 사용되었으며, 무선 근전도 센서를 통해 우세측 다리의 안쪽넓은근, 가쪽넓은근, 반힘줄모양근, 넙다리두갈래근 근육 활성을 수집하였다. 관성센서 및 동조 웹캠을 통해 확인된 초기접촉 전 10ms(사전활성화)와 입각기 50%(체중수용기) 동안 모든 근육의 평균 근육 활성과 뒤넙다리근 대 넙다리네갈래근 비율을 변인으로 포함하였다.
[결과] 사전활성화와 체중수용기 동안 남성집단의 안쪽넓은근 근육 활성은 예측보다 비예측 조건에서 높게 나타났다.
체중수용기 동안 뒤넙다리근 대 넙다리네갈래근 비율은 예측조건보다 비예측 조건에서 낮은 것으로 나타났다.
[결론] 본 연구의 결과는 예측할 수 없는 조건에서 사이드 커팅 시 앞십자인대 손상의 위험을 증가시키는데 기여할 수있다는 것을 시사하며, 일반인을 대상으로 무릎 손상과 관련된 요인을 규명하는데 유용한 정보를 제공할 수 있을 것으로 사료된다.

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