Journal of Sport Physiology Special Groups
The effect of ambient temperature on exercise-induced DNA damage in cadet wrestlers
Document Type : Original Article
Authors
1 Research Institute of Sport Sciences and Health, University of Allameh Tabataba'i, Tehran, Iran.
2 Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
3 Department of Sport Sciences, Faculty of Humanities, West Tehran Branch, Islamic Azad University,Tehran, Iran.
Abstract
Background and Aims: Performing intense physical activities leads to oxidative stress and DNA damage in athletes, which in combination with environmental factors such as changes in the ambient temperature of the training environment can have negative effects on the health and success of athletes. Therefore, the purpose of this study was to investigate the effects of different ambient temperatures on the 8-OHdG index in cadet wrestlers.
Method: 21 top cadet wrestlers of Kurdistan province clubs (age: 15.04±0.8 years, weight: 59.20±12.67 kg, height: 163.47±7.39 cm, body fat: 10.03±3.39 percent) participated as subjects in this study. After providing the desired temperature (30, 18 and 10 °C), subjects were asked to complete a Wrestling Technique Based Circuit Training protocol. Urinary samples were collected before the exercise, immediately and 30 minutes after the exercise.
Results: The results showed that the level of 8-hydroxy-2-deoxyguanosine (8-OHdG) increased in three groups after training, but this increase was not statistically significant in any of the groups (p<0.05). Also, 8-OHdG levels increased 30 minutes after exercise in all three groups. However, there were no significant changes within and between groups (p>0/05).
Conclusion: The results showed that performing wrestling training in different environmental temperatures has no significant effect on the augmentation of DNA oxidative damage in cadet wrestlers. Despite this, due to the higher level of 8-OHdG in the high temperature training group, it is recommended for coaches to pay special attention to the temperature of training and competitions gyms of cadet wrestlers in order to reduce environmental pressures.
Keywords
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