The effect of short-term vitamin D supplementation on inflammatory and functional indices of female athletes after an acute resistance exercise session
Poster Presentation
Paper ID : 1195-SSRC
Authors
1Assistant Professore in Exercise Physiology, Department of Sport Sciences, Faculty of Literature and Humanities, University of Zabol, Zabol, IRAN.
22. Associate Professore in Exercise Physiology, Department of Sport Sciences, Faculty of Educational Sciensces and Psychology, University of Sistan and Baluchestan, Zahedan, IRAN
Abstract
Introduction: The purpose of the present study was to investigate the effect of two weeks of vitamin D supplementation on inflammatory and functional indicators of female athletes after an acute resistance exercise session.
Method: In this semi-experimental study, 40 young female athletes were selected as participants using the available targeted method sampling and were randomly assigned to two groups of vitamin D supplement-resistance training (n=20) and placebo-resistance training (n=20). Participants in the supplement group consumed vitamin D at a dose of 50,000 units per week, and the placebo group consumed the same amount of starch for two weeks. Acute resistance exercise session three sets, 9 stations with an activity time of 30 seconds and a rest time between stations of 120 seconds and with an intensity of 80% One maximal repetition. The tests are carried out in two stages, before supplementation (pre-test) and two weeks after supplementation (post-test) and include measuring the maximum strength of the leg muscles, anaerobic and aerobic power. Blood samples were also collected to survey the serum levels of IL-6 and TNF-α. Shapiro-Wilk tests and analysis of covariance were used for data analysis (P<0.05).
Results: After performing a session of resistance exercise, maximal strength (p=0.001) and aerobic power (p=0.001) increased and IL-6 (p=0.001) decreased significantly compared to the placebo group, However, the concentration of TNF-α and anaerobic power did not show statistically significant difference between the two groups (p>0.05).
Conclusion: Short-term consumption of vitamin D before intense resistance exercise can moderate the release of some inflammatory indicators and can be beneficial for the optimal performance of skeletal muscle of athletes involved in intensity training.
Method: In this semi-experimental study, 40 young female athletes were selected as participants using the available targeted method sampling and were randomly assigned to two groups of vitamin D supplement-resistance training (n=20) and placebo-resistance training (n=20). Participants in the supplement group consumed vitamin D at a dose of 50,000 units per week, and the placebo group consumed the same amount of starch for two weeks. Acute resistance exercise session three sets, 9 stations with an activity time of 30 seconds and a rest time between stations of 120 seconds and with an intensity of 80% One maximal repetition. The tests are carried out in two stages, before supplementation (pre-test) and two weeks after supplementation (post-test) and include measuring the maximum strength of the leg muscles, anaerobic and aerobic power. Blood samples were also collected to survey the serum levels of IL-6 and TNF-α. Shapiro-Wilk tests and analysis of covariance were used for data analysis (P<0.05).
Results: After performing a session of resistance exercise, maximal strength (p=0.001) and aerobic power (p=0.001) increased and IL-6 (p=0.001) decreased significantly compared to the placebo group, However, the concentration of TNF-α and anaerobic power did not show statistically significant difference between the two groups (p>0.05).
Conclusion: Short-term consumption of vitamin D before intense resistance exercise can moderate the release of some inflammatory indicators and can be beneficial for the optimal performance of skeletal muscle of athletes involved in intensity training.
Keywords