Effect of Whey protein supplementation on GH-1 and IGF-1 in taekwondo Men athletes
محورهای موضوعی : تغذیه ورزشی
Mobina Aghajani
1
,
Abazar Teymouri
2
,
Elhamalsadat Zeinali
3
,
Alireza Mohammadi
4
,
Shadmehr Mirdar Harijani
5
1 - Neuromusculoskeletal Research Center, Iran University of Medical Sciences, Tehran, Iran. PhD Student, Department of Exercise Physiology, Faculty of Sport Sciences, University of Mazandaran, Babolsar, Iran.
2 - Assistant Professor, Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Farhangian University, Tehran, Iran.
3 - master of exercise physiology, department of physical education and sport science East Tehran Branch, Islamic Azad University, , Tehran ,Iran
4 - Student, Department of Exercise Physiology, Faculty of SportPhD Sciences. Tehran University, Tehran, Iran
5 - Professor, Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, University of Mazandaran, Babolsar, Iran.
کلید واژه: Resistance training, whey Supplements, Growth Hormone, Insulin-like growth factors and fitness factors,
چکیده مقاله :
Background: Improving athletic performance has been one of the issues that athletes have long faced. Hundreds of sports supplements for athletes have been introduced to the market in recent years. The overall aim of the present study was to investigate the interactive effect of whey supplementation and resistance training on growth hormone and IGF1 levels in Men athletes. Materials and Methods: The method of the present study was a quasi-experimental and clinical trial. 24 male working bodybuilders (mean age 26.4 ±5.3, height 173.9 ± 7.7, weight 92.3 ± 11.6 and body mass index 28.8 ± 5.4), randomly divided into 2 complementary groups + Practice and practice were divided. Before and after 8 weeks of combined exercise program and whey supplementation (50 grams daily in the supplement group), selected body composition indicators of insulin-like hormone and plasma growth hormone and physical fitness factors including lower and upper limb muscle strength, speed, endurance Upper torso muscle, and agility were assessed. To compare the results before and after supplementation and exercise in each group, paired t-test was used, and to compare the results of the two groups with each other, an independent t-test was used using SPSS software version 20 and the significance level was P≥0.05 was considered. Results: In both groups, after eight weeks of training and consumption of whey protein, the levels of growth hormone and insulin-like growth factor 1, muscle strength, and endurance increased significantly (P <0.05), but in comparison between groups in the post-test, there was a significant difference. Not observed (P <0.05). Conclusion: Whey supplementation probably does not affect growth hormone and insulin-like growth factor-1 levels and fitness factors in Men athletes.
Background: Improving athletic performance has been one of the issues that athletes have long faced. Hundreds of sports supplements for athletes have been introduced to the market in recent years. The overall aim of the present study was to investigate the interactive effect of whey supplementation and resistance training on growth hormone and IGF1 levels in Men athletes. Materials and Methods: The method of the present study was a quasi-experimental and clinical trial. 24 male working bodybuilders (mean age 26.4 ±5.3, height 173.9 ± 7.7, weight 92.3 ± 11.6 and body mass index 28.8 ± 5.4), randomly divided into 2 complementary groups + Practice and practice were divided. Before and after 8 weeks of combined exercise program and whey supplementation (50 grams daily in the supplement group), selected body composition indicators of insulin-like hormone and plasma growth hormone and physical fitness factors including lower and upper limb muscle strength, speed, endurance Upper torso muscle, and agility were assessed. To compare the results before and after supplementation and exercise in each group, paired t-test was used, and to compare the results of the two groups with each other, an independent t-test was used using SPSS software version 20 and the significance level was P≥0.05 was considered. Results: In both groups, after eight weeks of training and consumption of whey protein, the levels of growth hormone and insulin-like growth factor 1, muscle strength, and endurance increased significantly (P <0.05), but in comparison between groups in the post-test, there was a significant difference. Not observed (P <0.05). Conclusion: Whey supplementation probably does not affect growth hormone and insulin-like growth factor-1 levels and fitness factors in Men athletes.
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