Authors
Abstract
Introduction: attention to the relationship between obesity and type ΙΙ diabetes and also lack of enough data on the evaluation of obese individual’s glucose and insulin responses to different exercise intensities, the present cross sectional study aimed to examine the effects of different intensities running on plasma glucose and insulin concentrations in two levels of obesity in sedentary male students at Sharif University of Technology.
Materials & Methods: Six men in class Ι obese and five men in class ΙΙ obese ran on the treadmill with progressive intensities of 50, 60, 70, and 80% of VO2max for 10, 10, 5, and 2 minutes, respectively. Blood samples were collected before, during exercise and at 30, 60, and 120 minutes during recovery period. Repeated-measures, two-factor ANOVA, dependent and paired t-tests were used to assess both between group and intergroup differences. Statistical significance was accepted at the 5% level.
Results: Plasma glucose concentrations of both groups were unchanged until 70% and increased at 80% compare to resting values but there were observed no significant differences during recovery. Plasma insulin concentrations decreased before 60% in both groups and rose after that and significantly differed to the resting values at 80% which remained significant just half an hour after the exercise cessation.
Discussion: Considering the similar effects of running at 80% VO2max on elevation of glucose and insulin concentrations in both levels of obesity, conducting an experience on diabetic’s patients may help to find a proper manner for prevention and more effective treatment.
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