Effect of sex and menstrual cycle in women on starting speed, anaerobic endurance and muscle power

Wiecek, M and Szymura, J and Maciejczyk, M and Cempla, J and Szygula, Z (2016) Effect of sex and menstrual cycle in women on starting speed, anaerobic endurance and muscle power. Physiology International, 103 (1). pp. 127-132. ISSN 2498-602X

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Abstract

The aim of our study was to compare the indicators of starting speed, anaerobic endurance and power in women as well as men, and to investigate whether the values of these indicators differ in women during the follicular and luteal phases of the menstrual cycle. The studied group included 16 men and 16 women. The subjects performed the 20-second maximal cycling sprint test. The men performed the test twice at 14-day intervals. The women undertook the test 4 times: twice during the middle of follicular phase and twice in the middle of luteal phase in separate menstrual cycles. Hormonal changes during the menstrual cycle do not influence anaerobic performance, starting speed or anaerobic endurance in women. Anaerobic performance in men is higher than in women with similar aerobic performance expressed as VO₂max/LBM (lean body mass). A lower power decrease with time was noted for women than men, with a similar time of maintaining power in both groups. This is evidence of women’s better anaerobic endurance compared to men. At the same time, the men had significantly better starting speed rates than women.

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