Song, SunHae, SeungHoo Lee, DongGeon Lee, SoungKyun Hong, and GyuChang Lee. “Electromyographic Analysis of Lower Extremity Muscle Activities During Modified Squat Exercise: Preliminary Study”. Journal of Human Sport and Exercise 15, no. 4 (December 1, 2020): 727–734. Accessed March 29, 2024. https://www.jhse.ua.es/article/view/2020-v15-n4-electromyographic-analysis-lower-extremity-muscle-ac.