نوع مقاله : فیزیولوژی ، بیومکانیک،آسیب شناسی ورزشی
نویسندگان
1 دانشگاه گیلان - گروه فیزیولوژی ورزش
2 دانشگاه گیلان-گروه فیزیولوژی ورزش
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Background and purpose: Caffeine as a supplement has many ergogenic effects on exercise performance, but its effects during menstruation is challenging. The aim of the present study was to evaluate the short-term supplemental effect of caffeine on aerobic and anaerobic capacity, lactate and fatigue index during the menstrual period of female athletes.
Methods: 32 female athletes (age 21.86±1.6 yrs, height 1.64±0.06 m and weight 61.91±8.88 kg) participated in a placebo-based, double-blind and randomized experimental trial and were divided into two supplement groups (n: 16) and placebo (n: 16). On the second day of menstruation, the 30-second Wingate test was performed to measure anaerobic power, lactate (2, 7 and 15 min) and the Ästrand cycle for aerobic power. From the third day of menstruation to the sixth day, 2 capsules containing 4 mg/kg of caffeine or placebo were taken daily, and on the sixth day, one hour after taking the last capsule, the measurements were repeated.
Results: The mixed variance test showed a significant increase in the maximum, average and minimum anaerobic power and heart rate and a decrease in the perceived exertion of exercise after the Wingate test after short-term caffeine consumption during the menstrual period (p<0.05). Lactate was decreased in 7 and 15 min after Wingate protocol (p<0.05).
Conclusion: The findings showed that moderate dose of caffeine consumption improves anaerobic performance and perceived exertion (RPE) and rapid decrease of lactate. It can be suggested that these athletes can use caffeine in the short term to improve anaerobic performance.
کلیدواژهها [English]
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