“…The difficulty with this line of argument, however, is that the 20/100 ratio can be influenced by a number of factors, one being the length of the muscle, which has been reported to change, as indicated by an increase in the optimum length for force production, following eccentric exercise (Philippou, Bogdanis, Nevill, & Maridaki, 2004;Prasartwuth, Allen, Butler, Gandevia, & Taylor, 2006;Proske & Morgan, 2001;. There are, however, other reports finding no change in optimal angle following eccentric exercise in man (Hoffman, Cresswell, Carroll, & Lichtwark, 2016;Pincheira et al, 2018) and rat (Rijkelijkhuizen, de Ruiter, Huijing, & de Haan, 2005).…”