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The Effect Of Oral Contraceptives On Caffeine Metabolism And Cycling Performance, Annette M. Lemanski
The Effect Of Oral Contraceptives On Caffeine Metabolism And Cycling Performance, Annette M. Lemanski
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This project objectives were to determine the effects of oral contraceptives and menstrual cycle on the benefits of caffeine supplementation for cycling performance. Seventeen recreationally trained female cyclists completed four trials consisting of 3 kilometer time trials. Subjects ingested either caffeine or a placebo one hour prior to each trial. The magnitude of the ergogenic aid of caffeine was compared between oral contraceptive users and eumenorreheic females. In addition, the effect of caffeine was compared across different phases of the menstrual cycle, specifically the follicular and luteal phases.