Journals of

Background and Aim: Since the intensity and duration of exercise and recovery time are one of the influencing factors on injuries and adaptations, the current study examined changes in muscle damage active in overweight male students after exhaustive aerobic and anaerobic exercises.
Materials and Methods: In this semi-experimental study, 22 overweight male students were randomly divided into experimental (n = 12) and control (n = 10) groups.The subjects first tested the aerobic test of astrand (including running on a treadmill at the rates of 5 to 8 mph with a gradient of 0, for 3 minutes, and after 3 minutes every 2 minutes, a steep gradient of 2.5%, and the rate was constant and the activity continued until the time of exhaustion, and one week after an anaerobic Rast test (including 6 repetitions of two fast running 35 meters and with a maximum intensity performed after the rest interval of 10 seconds in each repetition) The control group continued to their daily activities without any interruption. Finally, the obtained data were analyzed through covariance and T-dependent analyses at the significant level of 0.05.
Results: It was found that in the pre-test, post-test LDH(17.16±0.9), AST(140±5.61) and CPK(147.5±7.65) levels in the experimental group, compared to the control, due to aerobic and anaerobic exercise, showed a significant increase. The level of CPK and LDH between the experimental and control groups was significant in aerobic exercise (P≤ 0.05), (P≤ 0.01); respectively, and in anaerobic exercise (P = 0.004), (P = 0.006) ; respectively, but the AST values between the two groups increased except for the aerobic exercise sessions (P = 0.7), (P = 0.1); respectively.
Conclusion: In general, the study showed that the muscle damage in exhausted aerobic exercise is less than that in anaerobic exercise. Thus, it is recommended that performing aerobic and anaerobic activities should be done at appropriate resting intervals.