عنوان

تأثیر هشت هفته تمرین هوازی و مکمل‌صدهی امگا- ‮‭۳‬بر پارامترهای تنفسی در مردان چاق

Introduction: Inactivity and obesity are the consequences of urbanization and industrial life, and the convergent trend of increasing prevalence of obesity has negative effects on respiratory system. Aerobic exercises and omega-3 fatty acids are paid close attention due to their physiological effects on different systems of the body like cardiovascular, respiratory, nervous, and skeletal systems. The aim of this study was to investigatet the effect of eight weeks aerobic exercise and omega-3 supplementation on respiratory parameters in obese men. Methods: Fourty obese men with 32.33.05 years old, 97.87.4 kg, and BMI 32.32.61 kg/m2 were voluntarily selected and randomly assigned into 4 groups 10 participants: 1- placebo, 2- supplement omega-3, 3- placebo + aerobic exercise, 4- supplement omega-3 + aerobic exercise. As well as a group of 20 sampled of normal weight with 32.653.8 years old, weight of 736.9 kg, and BMI 23.712.31 kg/m2 summoned to compare respiratory parameters at baseline were Obese group. The body composition, circumference of chest, heart rate, blood pressure, respiratory parameters, and VO2max were measured 48 hours before and after the training and supplementation. The training program included aerobic Training with intensity of 55-85 and HRmax for 8 weeks, 25 to 45 minutes thrice a week. The supplement received 1,000 mg omega-3 in the form of a capsule on a daily basis, and the placebo groups received dextrose 2 . Data analysis was carried out kolmogorov-Smirnov, independents t-test, two-way Analysis of variance and Bonferroni post hoc test at a significance level of p<0.05. Results: The effect of the training on the decrease in weight, WHR, body fat , systolic and diastolic blood pressurewas and on the increase in VO2max, FIV1/FIVC and PEF was significant without considering the effect of the supplement (p<0.05). Training and supplement caused a significant heart rate decrease (p<0.05). Training and supplement caused a significant increase in the FVC, FEV1, PEF, FEF25-75, FIV1, and PIF (p<0.05). Training, supplement, and combination of Training and supplement had no significant effect on the FIV1/FIVC and size of chest circumference at both inspiration and expiration (p>0.05). Conclusion: Regular aerobic Training and consumption of omega-3 are two modifying and effective factors in increasing respiratory parameters; therefore, they improve respiratory status in obese men