젊은 여성의 한쪽 다리 스텝다운 동작 시 슬관절 외반 정도와 대퇴사두근 근활성도 간의 상관관계
The Relationships Between Valgus Collapse Knee Position and Quadriceps Activity During a Single Limb Step Down in Female Subjects
Background: This study was designed to investigate the correlation between electromyography (EMG) activities in the vastus medialis oblique (VMO) vs vastus lateralis (VL) activity ratio and the valgus collapse knee position while stepping down. Methods: Twenty healthy women volunteered to participate in this study. We measured the frontal-plane projections of the knee valgus angle, knee valgus distance, and hip adduction angle by using a digital camcorder. After 3 repetitions of the step down (dominant side) exercise, the findings of the static and dynamic phases were analyzed. EMG activities data of the VMO:VL activity ratio were recorded during the step down exercise and were normalized to the maximal voluntary isometric contraction (MVIC) of the quadriceps. A paired t-test was used to compare the findings of the static and dynamic phases. We analyzed the Spearman’s rank order correlation coefficient between the and VMO:VL ratio. Results: Hip adduction angle, knee valgus angle, VMO activity, VL activity, VMO:VL activity ratio were statistically higher in the dynamic phase than in the static phase (p<.05). Frontal-plane projections of knee valgus angle were significantly correlated with hip adduction angle (r=.459, p<.05) and knee valgus distance (r=.505, p<.05). However, the EMG activity ratio of the VMO and the VL did not show a significant change during step down exercise with respect to hip adduction angle (p=.875), knee valgus angle (p=.618), and knee valgus distance (p=.701). Conclusion: The results from this study indicate that frontal-plane projections of knee valgus angle were associated with hip adduction angle and knee valgus distance. On the basis of these results, the knee valgus distance may be used to determine the valgus collapse knee position while stepping down.
목차
ABSTRACT I. 서론 II. 연구방법 1. 연구대상자 2. 측정방법 및 측정도구 3. 실험방법 4. 분석방법 III. 결과 1. 연구대상자의 일반적 특성 2. 스텝다운 동작 시 슬관절 외반슬 정도와 대퇴사두근의 근활성도 3. 스텝다운 동작 시 슬관절 외반슬 정도와 대퇴사두근 근활성도 간의 상관관계 V. 결론 참고문헌
대한정형도수물리치료학회 [Korean Academy of Orthopedic Manual Therapy]
설립연도
1992
분야
의약학>물리치료학
소개
대한정형물리치료학회는 대한물리치료사학회 정형물리치료 분과학회로서 정형물리치료학 분야의 연구및 학문발전에 목적을 가지고 있습니다.
본 학회에서는 다음과 같은 사업을 주관하고 있습니다.
첫째. 정형물리치료 분야 및 관련분야의 연구가 이루어지고 있으며,
둘째. 정형물리치료 연수위원회 운영 및 교육프로그램을 개발하고,
셋째. 학술대회 및 세미나를 개최하며,
넷째. 학회지 및 관련 도서를 발간 하고 있으며,
다섯째. 국제 및 국내 유관단체와 학술교류를 담당하고 있습니다.
간행물
간행물명
대한정형도수물리치료학회지 [The Journal of Korean Academy of Orthopedic Manual Physical Therapy]