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http://dx.doi.org/10.15268/ksim.2021.9.4.299

Immediate Effects of the Pronation Squat on the Genu Varum and the Muscles Around the Knee  

Kim, Hyeon-Su (Dept. of Physical Therapy, Kyungnam College of Information & Technology)
Kim, Kyoung-Don (Dept. of Physical Therapy, Daegu Health College)
Publication Information
Journal of The Korean Society of Integrative Medicine / v.9, no.4, 2021 , pp. 299-309 More about this Journal
Abstract
Purpose : The purpose of this study was to compare the ankle pronation squat with the general squat and investigate the effect on the geun varum and the muscles around the knee. Methods : Subjects were chosen as the target for squat exercise with the distance between the knees more than 5 cm. The selected 30 students were randomly divided into 15 pronation squat group and 15 general squat group, and performed five sets movements 20 times. Global postural system (GPS) and digital goniometer were used to check the distance between the knees and the Q angle, and muscle activity was measured with EMG during squat exercise. Results: The result is as follows. First, as a result of analyzing the change in the distance between the knees, the distance between the knees decreased and the Q angle increased in the pronation squat group after exercise. Second, as a result of analyzing the change in muscle activity of the peroneus longus, the muscle activity increased in the pronation squat group after exercise, and it was more effective than the general squat group. Third, as a result of analyzing the change in the VMO (vastus medialis oblique) and VL (vastus lateralis) muscle activity ratio, the activity ratio of the pronation squat group increased after exercise, and the imbalance in the VMO/VL muscle activity was decreased. Conclusion: The pronation squat exercise applied to the ankle will greatly affect what is made into a balanced leg as decreased of the distance between knees, increased of Q angle, increased of the muscle activity of the peroneus longus and the ratio of VMO/VL.
Keywords
genu varum; muscle activity; pronation squat exercise; VMO/VL;
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Times Cited By KSCI : 4  (Citation Analysis)
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