IntheirrecentpapersintheJournalofSportandHealthScienceonhamstringinjuriesinsprinting,~(1,2)andtheircorrespondingcommentariesoneachother'sresearch,3,4Yuetal.andLiuetal.proposeddifferentviewsofthemechanismsofmuscleinjuriesingeneral,andhamstringinjuriesinsprintingspecifically.WhileYuetal.~(1,3)arguedthatmuscleinjuriesareprimarily,ifnotexclusively,causedbymusclestrainmagnitudeineccentriccontractions,andthushamstringinjuriesoccurprimarilyat
