Study the amount of oxidation of the substrate in response to the different volumes of high intensity interval exercise in overweight men
Poster Presentation XML
Authors
1.MSc student, Faculty of Sport Sciences, University of Birjand, Birjand, Iran
2Associate Professor of Sport Biomechanics, Faculty of Sport Sciences, University of Birjand, Birjand, Iran.
3Assistant Professor of Exercise Physiology, Faculty of Sport Sciences, University of Birjand, Birjand, Iran.
Abstract
Incresed urbanization and mechine -based lifestyle have made people to very low physical activity. This inactive lifestyle causes many problems, including obesity and overweight for human societies. As a result, regular physical activity is crucial to prevent the consequences of sedentary behavior. Therefore, the perpose of the present study was evaluation of metabolism and substrate oxidation response to different volumes of high intensity interval exercise in overweight men. 12 inactive male students with mean age 22.83±2.63 Year and body mass index 28.67±4.21 kg/m2 participated in this study. In the first session, the subjects reached the maximal oxygen consumption and vVO2max using telemetry method. Subjects were then referred to the laboratory for three additional sessions to perform the exercise protocol, and lipid oxidation indices were measured 5 min before, during and 30 min after exercise by respiratory gas analyzer. Cortisol levels were also measured by ELISA method with Elisa human cortisol kit made in German. Results: the results showed that there was no significant difference between different volumes of high intensity interval exercise in fat consumption, heart rate, oxygen consumption, respiratory exchange ratio and salivary cortisol. However, the effect of measurement times showed that the levels of the variables include fat consumption, energy expenditure, relative oxygen consumption, heart rate and oxygen consumption during high intensity interval exercise were significantly increased than before. Cortisol levels also increased significantly after high intensity interval exercise.
Due to the significant increase in cortisol levels after HIIE compared to before, it seems that HIIE protocols be exteremely stressful and has been able to consume more substrate with increased heart rate and greater oxygen demand during exercise. Therefore, it seems that high intensity interval exercise cab be an effective way to lose weight
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