Kay, D., Gibson, A.S.C., Mitchell, M.J., Lambert, M.I., & Noakes, T.D. (2000). Different neuromuscular recruitment patterns during eccentric, concentric and isometric contractions. Journal of Electromyography and Kinesiology, 10(6), 425-431. doi:10.1016/S1050-6411(00)00031-6