Document Type : Original Article
Authors
1 Instructor of Department of Exercise Physiology, Faculty of Education and Psychology, Payame Noor University, Tehran, Iran.
2 Full Professor, Department of Exercise Physiology, Faculty of Sport Sciences, University of Mazandaran, Babolsar, Iran.
3 PhD Student of Exercise Physiology, Department of Physical Education, Faculty of Literature and Humanities, University of Lorestan, Lorestan, Iran.
Abstract
Background and Aim: The intensity, duration, and type of daily exercise trainings can influence oxidative damage and antioxidant system of the body. The aim of this research was to study of daily 1 and 2 incremental training sessions on serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) activity in active girls. Materials and Methods: In this semi-experimental research, 21 physical education girls students were selected and randomly divided (n=7) into two experimental groups and one control group. The control group prohibited any participation in physical activity. The first experimental group trained 1 session per day; while the second one performed 2 sessions of training per day (both for 7 days). Training protocole included running on treadmill up to 6-8 kilometer per hours. After 3 minutes, participants run 1 minute up to 3 kilometer per hours as recovery and then the speed of their activity increased 2 kilometer per hours until exhaustion. For biochemical analysis, venous blood samples collected before training, after 1th, 4 th,7 th day of training, and finally 24 hours after the last session. The results were extracted by repeated analysis of variance (ANOVA) and LSD tests at the significant level of pResults: In both experimental groups, the activity of AST and ALP increased significantly after 1th, 4 th,7 th day of training (p≥0.05), while the AST levels of the experimental groups decreased to baseline after 24 hours recovery. Conclusion: These results suggest that incremental training sessions (1 or 2 sessions per day) may increase serum ALT, AST and ALP activity, but these abnormal changes can modifiy by adequate recovery.
Keywords
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