Baharuddin, M. Y., Shanmugam, M. and Choo, H. B. (2017) “Biomechanics analysis on muscle activation during jumping jack exercise”, Jurnal Sains Sukan & Pendidikan Jasmani, 6(2), pp. 28–35. doi: 10.37134/jsspj.vol6.2.3.2017.