دورية أكاديمية
Efficacy of Vitamin D supplementation in physical performance of Iranian elite athletes
| العنوان: | Efficacy of Vitamin D supplementation in physical performance of Iranian elite athletes |
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| المؤلفون: | Karamollah Alimoradi, Bahareh Nikooyeh, Ali Asghar Ravasi, Maliheh Zahedirad, Nastaran Shariatzadeh, Ali Kalayi, Tirang Reza Neyestani |
| المصدر: | International Journal of Preventive Medicine, Vol 10, Iss 1, Pp 100-100 (2019) |
| بيانات النشر: | Wolters Kluwer Medknow Publications, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Medicine |
| مصطلحات موضوعية: | athletes, exercise, vitamin d, Medicine |
| الوصف: | Background: There has been no report of the vitamin D status of the professional athletes from Iran to date. This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes expedited to Asian competition in Taipei, China, 2015. Methods: This study was a randomized controlled clinical trial. Seventy subjects were enrolled in the study. The athletes were randomly divided into two groups: vitamin D supplement (D; received 50,000 IU of vitamin D supplement weekly) and control (P, received a placebo weekly). Duration of the study was 8 weeks. Anthropometric, dietary, athletic performance, and biochemical evaluations were performed for all subjects in the beginning and in the end of the intervention period. Results: A significant rise in circulating 25(OH)D concentration was observed in D group (17.3 ± 16.9 ng/mL, P < 0.001), whereas in P group, there was a statistically significant decrement (−3.1 ± 8.4 ng/mL, P = 0.040). There were no either within- or between-group significant differences in Ergo jump, vertical jump, and agility tests. In strength leg press tests, both groups showed a significant improvement. However, comparisons of changes revealed that the improvement in D group was significantly higher than in P group (P = 0.034). Moreover, in sprint test (one repetition-Max, 1RM), only D group had a significant within-group improvement (P = 0.030). Conclusions: Weekly supplementation with 50,000 IU vitamin D resulted in nearly 17 ng/mL increment in circulating calcidiol. This increase was associated with significant improvement of power leg press and sprint tests in D-supplemented group. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2008-7802 2008-8213 |
| Relation: | http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2019;volume=10;issue=1;spage=100;epage=100;aulast=Alimoradi; https://doaj.org/toc/2008-7802; https://doaj.org/toc/2008-8213 |
| DOI: | 10.4103/ijpvm.IJPVM_227_18 |
| URL الوصول: | https://doaj.org/article/8069aa5710d542389e19aad33b55d537 |
| رقم الأكسشن: | edsdoj.8069aa5710d542389e19aad33b55d537 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20087802 20088213 |
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| DOI: | 10.4103/ijpvm.IJPVM_227_18 |