Document Type : Research Paper
Author
Abstract
AIM: The purpose of this study was to investigate the effects of one progressive session exercise in day during a week on some enzymes muscle damage in active girls.
Back ground: Physical exercise acts as a mechanical stressor that can elicit biochemical alterations. Thus, muscular effort is able to modify blood concentrations of some cellular enzymes such as creatine phospho Kinase (CPK), lactate dehydrogenase (LDH) and aspartate aminotransferase (AST).
METHODS: 13 girls students of physical education with mean (Vo2 max 41.07±5.11ml) was selected and randomly divided an experimental group (1 session of exercise in day, on a treadmill at a rate of 6-8 km/h for 3 min with 1min of active rest between sets until exhaustion, n=7) and control group (n=6). Venous blood samples were obtained for analysis before of exercise (base line) and 1, 4, 7 days during of exercise period, as well as after the 24 hours last progressive session exercise.
RESULTS: The result of this study indicated that AST, LDH and CPK were increased significantly higher after 1, 4 and 7 days exercise than at the resting level, but after 24 h of end period, this Diff were significantly lower than at the exercise day.
CONCLUSION: These results suggested that acute exposure to progressive session exercise without adequate recovery could be elevated, and caused a more dramatically increase in muscle damage enzymes.
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