Document Type : Research Paper
Authors
1
Assistant Professor, Department of Physical Education and Sport Sciences, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran.
2
MA of Physical Education, Department of Physical Education and Sport Sciences, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran.
3
Assistant Professor, Department of Physical Education and Sport Sciences, Bandaranzali Branch, Islamic Azad University, Bandaranzali, Iran.
4
Master of physical education and sports sciences, Department of Exercise Physiology, University of Mazandaran, Babolsar, Iran.
Abstract
Introduction: Obesity is associated with a decrease in antioxidants and an increase in inflammation, and vitamin D deficiency accelerates this process. New evidence has shown that vitamin D and exercise have anti-inflammatory and antioxidant effects. Therefore, in the present study, the effect of 8 weeks of intensive intermittent running with and without vitamin D consumption on the levels of total antioxidant capacity and eotaxin-1 in overweight women with vitamin D deficiency was investigated.
Materials and methods: In this clinical trial study, 52 overweight women with vitamin D deficiency, after being selected by available sampling method, were randomly divided into three groups: control, exercise, exercise+vitamin (combined). The HIIRT was performed with the 12x1-min running bouts at 80-90% HRmax interspersed with 1-min active recovery at 50% HRmax in between bouts for 8 weeks and 3 times a week. Combined groups took vitamin D (50,000 IU) once a week. The data were analyzed using one-way ANOVA with repeated measures, one-way ANOVA and Kruskal-Wallis tests (P<0.05).
Results: After 8 weeks, eotaxin-1 levels decreased and TAC values increased significantly in the exercise, and combined groups. However, the changes of eotaxin-1 and TAC levels in the combined intervention group were significantly higher in comparison with the exercise group (p<0.05).
Conclusion: It seems that HIIRT with and without vitamin D intake can help increase health in people with vitamin D deficiency, partly by increasing the antioxidant status and reducing eotaxin-1, and combined intervention is associated with the strengthening of these effects.
Keywords
Main Subjects
)