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KMID : 1211620140090030249
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Journal of the Korean Society of Physical Medicine
2014 Volume.9 No. 3 p.249 ~ p.253
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The Effects of Trunk and Lower Extremity Muscle Activation on Straight Leg Rising by Various Ankle Joint Rotation Angle
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:Lee Sang-Yeol
:An Bo-Gyeong/:Kim Mi-Jin/:Hwang Na-Yeon/:Kim Sung-Jin/:Han Min-Hyoung
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Abstract
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PURPOSE : This study intends to examine the effects of change of anatomical position of the ankle joint in open kinematic chain, an appropriate position for selective muscle training, on vastus lateralis obliques, rectus femoris, vastus medilais obliques, and rectus abdominalis muscle activation and to present an effective method of muscle training for patients and normal people.
METHODS : The participants of this study were Korean healthy adult in their 20s. The 8 channel surface electromyography was used to measure muscle activation while the subjects raised their legs under each condition. Under each condition, while the subjects raised the leg to hip joint flexion at 60° along the arch.
RESULTS: The analysis result of muscle activation by each section and position during leg rising. There were significant differences.
CONCLUSION : For independent strengthening of each muscle, muscle activation was measured according to leg raising angles and the result differed according to each section and position. If this study result is applied to muscle training for patients who need selective muscle training, more effective muscle strengthening will be made possible.
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KEYWORD
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Ankle joint rotation, Leg rising, Muscle activation
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