Figure 2. Comparison of the effects of halothane and isoflurane on maximum unloaded shortening velocity (Vmax) in papillary muscles from healthy hamsters and those with cardiomyopathy. Halothane and isoflurane concentrations are reported in vol%. Data are mean +/- SD. Probability values refer to between-group differences. NS = not significant. *P < 0.05 versus control values.