AIMS:The purpose of this study was to compare the effects of hamstring eccentric (NHE) strength training versus sprint training programmed as complements to regular soccer practice. on sprint performance and its mechanical underpinnings. as well as biceps femoris long head (BFlh) architecture. METHODS:In this prospective interventional control study. https://www.maximilianopellegrini.com/product-category/ansigts-olie/