Figure 2
From: Sex difference in fatigability of knee extensor muscles during sustained low-level contractions

Shear moduli of the rectus femoris and lateral and medial vastus muscles (RF, VL, and VM) for men and women before and after the fatiguing task. Regarding RF and VM, there was no significant time × sex interaction. ♯Indicates the significant main effect of sex. Regarding VL, the time × sex interaction was significant. *Indicates a significant difference before and after the fatiguing task for men. †Indicates a significant sex difference each before and after the fatiguing task. Data are presented as means ± standard deviation.