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http://dx.doi.org/10.15207/JKCS.2018.9.10.371

Analysis of Lower Extremity Muscle Activation According to Squat Type during Whole-Body Vibration  

Lee, Dae-Yeon (Faculty of Liberal Arts, Kangnam University)
Publication Information
Journal of the Korea Convergence Society / v.9, no.10, 2018 , pp. 371-376 More about this Journal
Abstract
The purpose of this study is to clarify the effects of whole-body vibration and to provide scientific basis for effective exercise by analyzing the differences in lower extremity muscle activation according to squat position during whole body vibration. In this study, muscle activation during whole-body vibration was measured in 10 healthy males in their 20s with no orthopedic conditions during standing posture, deep squat, half squat, and heel raise squat. Muscle activation was compared by measuring the root mean square (RMS) with electromyography electrodes attached to lateral gastrocnemius, tibialis anterior, vastus lateralis, and biceps femoris. The vibration intensity was applied in combinations of the volumes of 50 and 80 and the frequencies of 10, 25, and 40 Hz in each posture. The results showed that there were differences in muscle activations of external gastrocnemius, tibialis anterior, and vastus lateralis among the position(p<.05). The heal raise squat was found to have a high muscle activation effect.
Keywords
Whole body vibration; squats; muscle activation; skeletal muscle; electromyography;
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