Recently, Nasirzade et al. (2013) demonstrated therelative contribution of different architectural parameterssuch as fascicle length and muscle thickness of vastuslateralis from different biomechanical, anthropometrical,and muscle architectural parameters in predicting 50-m
sprint front crawl swimming performance in young maleswimmers. Although there has not been another study toexamine these parameters in swimmers, the results ofsimilar studies on athletes that required high musclepower production such as sprinting demonstrated that sprinters compared to endurance runners and untrainedindividuals have greater fascicle in their locomotor muscles
(Abe et al., 2000).