title: Effect of sex and menstrual cycle in women on starting speed, anaerobic endurance and muscle power.
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.
authors.affiliation: Department of Physiology and Biochemistry, Institute of Biomedical Sciences, Faculty of Physical Education and Sport, University of Physical Education in Krakow , Krakow , Poland.
authors.forename: M
authors.initials: M
authors.lastname: Wiecek
authors.affiliation: Department of Clinical Rehabilitation, Faculty of Motor Rehabilitation, University of Physical Education , Krakow , Poland.
authors.forename: J
authors.initials: J
authors.lastname: Szymura
authors.affiliation: Department of Physiology and Biochemistry, Institute of Biomedical Sciences, Faculty of Physical Education and Sport, University of Physical Education in Krakow , Krakow , Poland.
authors.forename: M
authors.initials: M
authors.lastname: Maciejczyk
authors.affiliation: Department of Physiology and Biochemistry, Institute of Biomedical Sciences, Faculty of Physical Education and Sport, University of Physical Education in Krakow , Krakow , Poland.
authors.forename: J
authors.initials: J
authors.lastname: Cempla
authors.affiliation: Department of Sport Medicine and Human Nutrition, Institute of Biomedical Sciences, Faculty of Physical Education and Sport, University of Physical Education in Krakow , Krakow , Poland.
authors.forename: Z
authors.initials: Z
authors.lastname: Szygula
mesh_terms: D000054:Acceleration; D000328:Adult; D015308:Anaerobic Threshold; D001642:Bicycling / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008597:Menstrual Cycle / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology*; D012727:Sex Characteristics; D055815:Young Adult
keywords: acid-base homeostasis; anaerobic exercise; anaerobic power; gender differences; menstrual cycle