Figure 6.

Effects of L-glutamine supplementation (daily doses of 1 g/kg body weight for five weeks) associated or not with resistance exercise training on the cross-sectional area (CSA) of muscle fibers of the EDL. (a) CSA (μm²) Mean ± SEM (standard error of the mean), and (b) muscle fibers CSA images (20×) obtained via optical microscopy after hematoxylin and eosin staining (HE). One thousand fibers were analyzed per group. Significant differences were reported using 95% confidence interval, as described in Materials and Methods (n = 6 animals per group). Control, no exercise (C); exercise, hypertrophy resistance training exercise protocol (T); no exercise supplemented with glutamine (G); and exercise and supplemented with glutamine (GT).