The effect of vitamin D supplementation on the balance of testosterone and cortisol hormones in the blood and their relationship to clean and jerk performance among weightlifters at Al-Kadhimiya Sports Club

Authors

  • Omar Khalid Yasir College of Physical Education and Sports Sciences/ University of Baghdad, (Iraq).
  • Safa AbdUlSattar Ali College of Physical Education and Sports Sciences/ University of Baghdad, (Iraq).
  • Omar Daham Taha College of Physical Education and Sports Sciences/ University of Baghdad, (Iraq)

DOI:

https://doi.org/10.47197/retos.v78.118864

Keywords:

Vitamin D of testosterone and cortisol hormones, clean and jerk, weightlifters

Abstract

Objective: This research aims to explore the effect of vitamin D supplementation on the balance of testosterone and cortisol hormones and their relationship to the athletic performance of weightlifters. By addressing this problem, the study can contribute new insights and practical guidance for athletes and coaches, thereby enhancing athletic performance and contributing to improved overall health.

Research methodology: The researcher used the experimental method, specifically a single-group pre-test/post-test design with correlational analysis, as it was the most suitable approach for the nature of the research problem. The research sample was selected purposively from the Al-Kadhimiya Sports Club for Weightlifting, consisting of (50) advanced weightlifters. All weightlifters from the club were chosen as the research sample, representing 100% of the club's weightlifters.

Results: show an improvement in testosterone levels and a decrease in cortisol levels after taking a vitamin D supplement, this may indicate the vitamin's importance in enhancing athletic performance. This could guide coaches and athletes toward incorporating vitamin D supplementation as part of their training and nutrition strategies.

Vitamin D supplementation had a positive effect on testosterone and cortisol levels, which is reflected in the performance of Olympic weightlifters.

Conclusions: Regular vitamin D intake helps increase blood testosterone levels, regular vitamin D intake helps reduce blood cortisol levels, and regular vitamin D intake helps increase muscle strength, as demonstrated by clean and jerk performance.

References

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Published

01-05-2026

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Original Research Article

How to Cite

Yasir, O. K., Ali, S. A., & Taha, O. D. (2026). The effect of vitamin D supplementation on the balance of testosterone and cortisol hormones in the blood and their relationship to clean and jerk performance among weightlifters at Al-Kadhimiya Sports Club. Retos, 78, 1086-1094. https://doi.org/10.47197/retos.v78.118864