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Original Article

엉덩관절 굽힘 각도에 따른 쪼그려 앉기 운동 시 하지의 근활성도 비교

원문정보

Comparison of Low Limb Muscle Activity during Squat Exercise according to Hip Joint Flexion Angle

민동기

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초록

영어

Background: The purpose of this study was to determine if there is a difference in activation of the rectus femoris, vastus medialis oblique, vastus lateralis, semitendinosus, and biceps femoris when performing normal free squat with standinding position and free squat with 30〬˚ flexed hip joint. Methods: Electromyograph surface electrodes were placed on the rectus femoris, vastus medialis oblique, vastus lateralis, semitendinosus, and biceps femoris of 19 healthy college students. The participants performed standing bilateral squats and standing bilateral squats with 30˚ flexed hip joint with EMG measures taken upon initiation of muscle activity as confirmed by an electronic goniometer. Participants completed one trial with the EMG time measurements on each type. Results: There was a significant difference between normal squats(standing squats) and normal squats with 30〬˚ flexed hip joint. The normal squat exercise was statistically higer than normal squat exercise with 30˚ flexed trunk except for semitendinosus and biceps femoris that shown slightly high. Conclusions: As a result of this study, there were increases of muscle activity in both ways. In particular, it may be more beneficial for knee joint stabilization to perform normal squat exercise with standing position relatively.

목차

ABSTRACT
 I. 서론
 II. 연구방법
  1. 연구대상
  2. 측정도구
  3. 측정방법
  4. 자료 분석
 III. 결과
  1. 연구 대상자의 일반적 특성
  2. 정상 쪼그려 앉기와 30도 엉덩관절굽힘 쪼그려앉기 사이의 근활성도 비교
 IV. 고찰
 V. 결론
 참고문헌

저자정보

  • 민동기 Dong-ki Min. 계명대학교 대학원 의학과 재활의학교실

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