Earticle

초록

영어

Purpose: The purpose of this study was to investigate the differences in muscle thickness and ground reaction force of the vastus medialis oblique and vastus lateral oblique muscles during squats at ankle angles of toe 0°, toe in 10°, and toe out 10°. Methods: In this study, 9 male and 17 female students in their 20s participated in a randomized controlled trial and were compared according to the ankle angles of toe 0°, toe in 10°, and toe out 10°. To determine the reliability and measurement of muscle thickness according to ankle angle using ultrasound equipment and muscle thickness, the participants’ ankle angles-toe 0°, toe in 10°, and toe out 10°-were measured three times at the vastus medialis oblique and vastus lateralis oblique muscles during squats. At the same time, the maximum vertical ground reaction force was measured with a force plate. A total of three measurements were taken and averaged, and two minutes of squat movements were assessed between ankle angles to prevent target action. Results: The results of this study illustrated that the reliability of the vastus medialis oblique muscles and vastus lateralis oblique muscles in ankle angle was high. The difference in muscle thickness was significantly greater in comparing the toe out10° angle with the toe 0° angle than between toe in 10° and toe out 10° in vastus medialis oblique and vastus lateralis oblique (p < 0.05). There was no statistically significant difference between the ankle angle of toe 0° and toe in 10° (p > 0.05). The maximum vertical ground reaction force was significantly greater at toe out 10° than at the ankle angle of toe 0° and toe out 10° and between toe in 10° and toe out 10° (p < 0.05). There was no statistically significant difference in the comparison between toe 0° and toe in 10° (p > 0.05). Conclusion: Squatting at an ankle angle of toe out 10° increases the dorsi flexion; thus, the stability of the ankle and the thickness of both oblique muscles increased to perform more effective squats. In addition, as the base of support widens, it is thought that the stability of the posture increases so that squat training can be performed safely.

목차

Abstract
Ⅰ. 서론
Ⅱ. 연구 방법
1. 연구 대상
2. 측정 방법 및 도구
3. 연구 절차
4. 자료 분석
Ⅲ. 연구 결과
1. 연구 대상자의 일반적인 특성
2. 발목각도에 따른 스쿼트 시 초음파 진단장치 측정의 신뢰도
3. 발목각도에 따른 스쿼트 시 안쪽넓은근과 가쪽넓은근의 근두께 변화 차이의 비교
4. 발목각도에 따른 스쿼트 시 최대 수직 지면반발력 변화 차이의 비교
Ⅳ. 고찰
Ⅴ. 결론
References

키워드

저자

• 안수홍 [ Su-Hong Ahn | 동의대학교 보건의과학대학원 ]
• 이수경 [ Su-Kyong Lee | 동의대학교 물리치료학과, 건강기능성 소재연구소 ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  PNF and Movement

• 간기

  연3회

• pISSN

  2508-6227

• eISSN

  2508-6472

• 수록기간

  2003~2020

• 등재여부

  KCI 등재

• 십진분류

  KDC 512 DDC 610