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Values are expressed as the mean ± SEM of developed tension (DT, Panel A), maximum rate of tension development (+dT/dt, Panel B), time to peak tension (TPT, Panel C), rest tension (RT, Panel D), maximum rate of tension decline (−dT/dt, Panel E) and (TR50%, Panel F). * represents significant differences (P<0.05) respect to other groups by one-way ANOVA–Tukey test.
