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Fig. 6. Sustained force is compared between males and females in the three muscles
(FCR, AIL, ECU). Sustained force was averaged over 30 s intervals and
expressed as a percentage of the average peak force for the same time
interval. In both FCR and AIL, males produced significantly more sustained
force than did females; however, in AIL significance was reached only at the
240 s time interval. Male and female ECU both produced equally small amounts
of sustained force (note the different force scale). Asterisks indicate
significant differences (P<0.05, adjusted with sequential
Bonferroni; k=8). Values are means ± s.e.m.