The effect of six weeks of high-intensity interval training with and without zinc supplementation on aerobic power and anaerobic power in female futsal players

Malihe Saeedy, Nahid Bijeh, Mahtab Moazzami

International Journal of Applied Exercise Physiology

Purpose‏:‏‎ Different training methods and various supplementations are usually used by the ‎athletes to improve their exercise performance. The aim of this study was to investigate the effect ‎of six weeks of HIT with and without zinc ‎supplementation on aerobic and anaerobic power in ‎female futsal players. Methods: Thirty-two female futsal players were randomly divided into 4 groups as placebo, Zinc, ‎HIT ‎and Zinc+HIT. All subjects had to attend futsal-specific training 3 sessions per week. Zinc ‎groups and Placebo group ‎ took ‎30 mg ‎day−1 of zinc gluconate or dextrose, respectively, and HIT ‎groups performed 6-10 repetitions of a 30-second running at 100% of VO2peak with ‎4 minutes rest ‎between repeats during six weeks. Results: decreased VO2max in placebo group was not significant‎ (P=0.54), however VO2max ‎increased 4.43%, 3.69 % and 9.33% in Zinc, HIT and Zinc+HIT groups, respectively. ‎MPO also ‎augmented 7.84%, 8.78%, 30.85% as well as 11.92% in Placebo, Zinc, HIT and Zinc+HIT ‎groups, respectively‎. Conclusions: The findings suggest that increased number of futsal training sessions per week, ‎solely ‎ameliorated MPO value; while, Zinc, HIT and HIT along with Zinc ‎supplementation ‎increased both aerobic and anaerobic power in female ‎futsal players after six weeks. It seems that ‎zinc improved the exercise performance because of its utile effect on protein synthesis, muscle ‎tissue development and enzymes activities. Consequently, both of HIT and Zinc supplementation ‎were confirmed as the effective ways to improve exercise performance. ‎
Keywords: HIT, Zinc supplementation, VO2max‎, MPO, Female Futsal Players

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