Objective: The aim of this study was investigating the effect of 12 weeks of yoga and aerobic exercise (running on a treadmill) on the sleep quality in women with Type 2 diabetes. Materials and Methods: 39 diabetic women were selected from Semnan city with the mean age of 46.85±3.35 years, weight of 69.79±17.18 kg, height of 155.03±5.00, BMI of 29.64±5.00 kg/m 2 who had a background of diabetes for 6.46±2.69 years. They were then randomly divided into yoga exercise (n=15), aerobic exercise (n=13), and control group (n=11). The exercise program was performed for 12 weeks, three sessions per each week. In order to measure the sleep quality, the Pittsburgh Sleep Quality Index (PSQI) was used. The data were analyzed by non-parametric wilcoxon and Kruskal-Wallis Test at significance level of p<0.05. Results: Overall score of sleep quality improved after six (p=0.001) and 12 (p=0.001) weeks of yoga exercise. Also, significant effect was observed after 6 weeks of aerobic exercise (p=0.039). However, the positive effect was diminished to under significant levels after 12 weeks of aerobic exercise (p=0.154). Kruskal-Wallis Test showed significant differences between yoga and aerobic groups after 12 weeks of exercise (p=0.002). No significant differences were observed in control groups in all situation. Conclusions: It can be concluded that yoga exercise is more effective in improving the sleep quality in comparison with the same course of aerobic exercise in women suffering from diabetes Type 2. Thus, yoga exercise can be suggested to these patients.
SummaryStudy aim: the purpose of this study was to assess the effect of 3 mg and 5 mg per kg of body weight of caffeine on heart rate, blood pressure and shooting performance among elite shooters. Material and methods: sStudy participants comprised 8 male shooters among athletes at the national level with at least 2 years of experience, with the mean age (26.50±13.08 years), weight (73.02 ± 12.2 kg), height (174.62 ± 8.97 cm) and BMI (23.93 ± 2.88 kg/m 2 ). The blood pressure and heart rate of all participants were measured at rest. Participants then randomly took caffeine (3 mg and 5 mg per kg of body weight) or placebo for 3 different days, 2 days apart. One hour after ingestion, they shot with rifle and air pistol. Statistical analysis was performed using the ANOVA with repeated measures and the Bonferroni test.Results: the results of the survey showed that taking 5 mg/kg of caffeine caused a significant increase in systolic blood pressure (p < 0.001), diastolic blood pressure (p < 0.05) and also caused a significant increase in heart rate (p < 0.05) and a significant decrease in shooting performance (p < 0.05). Moreover, taking 3 mg/kg of caffeine caused a significant increase in systolic blood pressure (p < 0.05). But this amount of caffeine had no significant effect on the heart rate, diastolic blood pressure or shooting performance (p < 0.05). Conclusions: the results of this study suggest that taking 5 mg/kg of caffeine can increase the blood pressure and heart rate of the shooters that leads to a decrease in shooting performance.
Introduction: Inflammation in the brain is known as neuroinflammation and increases TNF-α (Tumor necrosis factor alpha) secretion and activates the TLR4 (Toll-like receptor 4) pathway. The aim of this study was to evaluate the effect of 4 weeks preconditioning with high intensity intermittent training (HIIT) and moderate intensity training (MICT) on TNF-α and TLR4 levels in male Wistar rats. Methods: The current research was an experimental study.18 male Wistar rats were divided into three groups: high intensity intermittent training (6 heads), continuous moderate intensity training (6 heads) and the control group (6 heads). HIIT program included 6 stages of 2-minute activity with intensity of 85-90% VO2max and 5 stages of active rest for 2 minutes and MICT program with intensity of 65% VO2max with the same duration as HIIT for 4 weeks and 5 days per week was implemented. 48 hours after the last training session, rats were dissected and cortical tissues and layers of mice were extracted for TNF-α and TLR-4 using western blotting. Data analysis was performed using ANOVA test at a significance level of 0.05 With the help of SPSS version 16 software. Results: The results of the present study showed that TNF-α and TLR4 in the cortex and stratum cerebral areas after 4 weeks of high-intensity and moderate-intensity intermittent aerobic exercise did not change significantly compared to the control group (p≥0.05). Conclusion: According to these findings, it can be stated that exercise with high or moderate intensity cannot be an effective factor in increasing inflammatory markers in the brain.
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