Influence of trunk curl-up speed on muscular recruitment. viernes, 1 octubre 2010 | Biomecánica y salud Vera-Garcia, F. J., Flores-Parodi, B., Elvira, J. L., y Sarti, M. A. (2008). Influence of trunk curl-up speed on muscular recruitment. Journal of Strength and Conditioning Research, 22(3), 684-690.