Exercise Physiology
Naser Behpoor; Saeid Naeimi; Ahmad Fasihi
Abstract
Purpose: Diabetes mellitus is the most common metabolic problem worldwide, which is associated with hyperglycemia and structural and functional disorders of the nervous system. The aim of the present study was to investigate the effect of endurance training on serum glucose levels, weight changes and ...
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Purpose: Diabetes mellitus is the most common metabolic problem worldwide, which is associated with hyperglycemia and structural and functional disorders of the nervous system. The aim of the present study was to investigate the effect of endurance training on serum glucose levels, weight changes and Like Growth Factor 1 (IGF-1) protein expression in the hippocampus of diabetic rats. Method: For this study, the samples included 48 male Wistar rats (8 weeks old), which were divided into 4 groups: control (C), the diabetes control (DC), diabetes-training (DT) and exercise (T). In order to induce diabetes, streptozotocin injection was used. 5 sessions per week of endurance activity were performed for 6 weeks. 48 hours after the completion of the exercise program, hippocampal tissue was dissected and extracted. ELISA method and one-way variance test were used to analyze the data. Resalts: Based on the results, serum glucose levels decreased after six weeks of endurance training (p=0.001). The amount of IGF-1 in group DC was significantly lower compared to all groups DT, T, and C (P≤0.05). But the DT group had no significant difference with the C and T groups (P=0.210 and P=0.226, respectively). On the other hand, the amount of IGF-1 in group T was only significantly different from group D (P=0.001). The correlation between blood glucose and IGF-1 was significant (p=0.001, r=0.820). Conclusion: Diabetes reduces IGF-1 and hyperglycemia, but exercise moderates the effect of diabetes on IGF-1. Considering the appropriate duration of training and the correlation of this protein with blood glucose, maybe endurance training can reduce the negative effect of diabetes.
Nahid Talebi; Morteza Asadi
Abstract
Purpose: The aim of this study was to compare the effects of three methods of endurance, resistance and concurrent training on aerobic fitness and body composition male students with overweight. Methods: Forty five overweight male who were resident of Shahed university dormitory were purposefully selected ...
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Purpose: The aim of this study was to compare the effects of three methods of endurance, resistance and concurrent training on aerobic fitness and body composition male students with overweight. Methods: Forty five overweight male who were resident of Shahed university dormitory were purposefully selected and randomly assigned into following groups: endurance, resistance and concurrent training. Each Group performed their own protocol for 8 weeks, 3 times per week with specified intensity and duration. Before starting the protocol and 24 hours after the last training session, body composition parameters and aerobic fitness were measured at same condition. Data were analyzed using analysis of covariance. Results: The findings showed that three methods of endurance, resistance and concurrent training protocol had a significant effects on aerobic fitness and body composition parameters. In comparing the difference between groups of three methods of endurance, resistance and concurrent training on aerobic fitness and body composition parameters were significantly different and the variables of aerobic fitness and body composition parameters of concurrent training was more effective than two other exercises. Innovation this research is identical the work out of training (time) in the 3 protocol that to compare intergroup among the most effective way to same time identification. Conclusion: It seems that eight weeks of endurance, strength and concurrent exercise training have effects on aerobic fitness and body composition parameters male students with overweight but all three types of exercise separately with diet modification could be improved aerobic fitness and body composition indices.