Fig. 1From: COL5A1 rs12722 polymorphism is not associated with passive muscle stiffness and sports-related muscle injury in Japanese athletesStiffness of the biceps femoris long head (n = 353), semitendinosus (n = 353), and semimembranosus (n = 331) muscles by the COL5A1 rs12722 genotype. Data are expressed as the mean ± SDBack to article page