Volume 25, Issue 4 (9-2025)
ijdld 2025, 25(4): 308-318 |
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Rahimi Z, Shamlou kazemi S, Hemati afif A. The Effect of Combined Exercises and Grape Seed Extract on Some Factors of Oxidative Stress and Antioxidant in Postmenopausal Women with Type 2 Diabetes: A Randomized Controlled Trial. ijdld 2025; 25 (4) :308-318
URL: http://ijdld.tums.ac.ir/article-1-6398-en.html
URL: http://ijdld.tums.ac.ir/article-1-6398-en.html
1- Faculty of human sciences, Danesh Alborz University, Qazvin, Iran
2- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Bu-Ali Sina University, Hamadan, Iran ,saeidshamlou9092@gmail.com
3- Department of Physical Education and Sport Sciences, Faculty of Social Sciences, International Imam Khomeini University, Qazvin, Iran
2- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Bu-Ali Sina University, Hamadan, Iran ,
3- Department of Physical Education and Sport Sciences, Faculty of Social Sciences, International Imam Khomeini University, Qazvin, Iran
Abstract: (1938 Views)
Background: Moderate and intense aerobic exercise increases the production of free radicals, and on the other hand, the use of antioxidant supplements such as grape seed extract (GSE) has been suggested as one of the ways to deal with oxidative stress. Based on this, the aim of this study was to determine the interventions effect of combined exercise and consumption of GSE on some factors of oxidative and antioxidant stress in postmenopausal women with type 2 diabetes.
Methods: The current study was conducted as a clinical trial on the 80 women with type 2 diabetes, who were randomly divided into four groups (20 people): control, exercise, GSE supplement, exercise + GSE supplement. The combined exercise protocol consisted of aerobic (20 minutes of treadmill running at an intensity of 60–70% of reserve heart rate) and strength training (at an intensity of 70% of one repetition maximum), which was performed for eight weeks (five days/week). GSE supplement was taken in the form of 200 mg capsules daily (morning and noon). Samples (five cc) were taken before and after eight weeks of interventions. In order to determine the acceptance or rejection of the null hypothesis of intragroup and intergroup changes, was used the two-way AVOVA, and then Tukey's post hoc test to determine different groups by SPSS version 25 (P≤ 0.05).
Results: The values of total antioxidant capacity (TAC) and serum glutathione reduction (GSH) in the GSE and exercise + GSE groups increased significantly compared to the control and exercise groups (P= 0.001). Serum malondialdehyde (MDA) levels in the GSE group showed a significant decrease compared to the control and exercise groups (P= 0.001).
Conclusion: It seems that the intervention of grape seed extract is more effective in reducing oxidative stress than combined exercise. The consumption of this extract alone, as well as with combined exercise, has a significant effect on increasing the total antioxidant capacity and reducing GSH (glutathione).
Methods: The current study was conducted as a clinical trial on the 80 women with type 2 diabetes, who were randomly divided into four groups (20 people): control, exercise, GSE supplement, exercise + GSE supplement. The combined exercise protocol consisted of aerobic (20 minutes of treadmill running at an intensity of 60–70% of reserve heart rate) and strength training (at an intensity of 70% of one repetition maximum), which was performed for eight weeks (five days/week). GSE supplement was taken in the form of 200 mg capsules daily (morning and noon). Samples (five cc) were taken before and after eight weeks of interventions. In order to determine the acceptance or rejection of the null hypothesis of intragroup and intergroup changes, was used the two-way AVOVA, and then Tukey's post hoc test to determine different groups by SPSS version 25 (P≤ 0.05).
Results: The values of total antioxidant capacity (TAC) and serum glutathione reduction (GSH) in the GSE and exercise + GSE groups increased significantly compared to the control and exercise groups (P= 0.001). Serum malondialdehyde (MDA) levels in the GSE group showed a significant decrease compared to the control and exercise groups (P= 0.001).
Conclusion: It seems that the intervention of grape seed extract is more effective in reducing oxidative stress than combined exercise. The consumption of this extract alone, as well as with combined exercise, has a significant effect on increasing the total antioxidant capacity and reducing GSH (glutathione).
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