Journal of Korean Physical Therapy Science (대한물리치료과학회지)
- Volume 19 Issue 4
- /
- Pages.41-46
- /
- 2012
- /
- 2733-6441(pISSN)
- /
- 2733-645X(eISSN)
Comparison of Gluteus Medius Muscle Electromyographic activity at different hip angles and motions
엉덩관절 가동범위에 따른 중간볼기근의 근활성도 비교
-
Lee, Tae-Sik
(Department of physical Therapy, Dong-Eui Institute of Technology)
-
이태식
(동의과학대학교 물리치료과)
- Received : 2012.12.12
- Accepted : 2012.12.26
- Published : 2012.12.31
Abstract
Background : The purpose of this study was to investigate the electromyographic(EMG) amplitude of the gluteus medius muscle bilaterally at various hip angles and motions(flexion, extension and abduction). Methods : Thirty young with a mean(SD) age of 21.03(1.69) years performed hip motions(flexion, extension and abduction) while the surface EMG activity of the gluteus medius muscles was recorded bilaterally. Subjects were instructed to use the right lower limb during moving 3 different direction. Differences in EMG amplitudes in according with movement direction and angle were assessed by use of paired t-test analyses of variance for the right and left lower extremities. The alpha level was set at .05. Results : Gluteus medius muscle EMG activities in the both side were significantly greater for abduction at angles of 30 degrees than those for other motions at other angles. Conclusion : Hip abduction at angles of 30 degrees on the standing position may be effective in activating the gluteus medius muscle.