Fig. 4

Comparison of intragroup and between groups indipendent variables. A Comparison of intragroup and between groups myogenin changes before and after the eight-weeks high-intensity circuit training (HICT). B Comparison of intragroup and between groups myostatin changes before and after the eight-weeks HICT. C Comparison of intragroup and between groups serum myogenin response to the maximum aerobic test, at pre and post eight weeks performing HICT. D Comparison of intragroup and between groups serum myostatin response to the maximum aerobic test, at pre and post eight weeks performing HICT