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Effect of menstrual cycle phase on sprinting performance
Antonios Tsampoukos1, Esther A Peckham, Rhian James
1School of Sport and Exercise Sciences, Loughborough University, Leicestershire, LE11 3TU, UK. ATsampoukos@hotmail.com
Menstrual cycle phase (MCP) does not significantly impact maximal sprinting performance or recovery in females. Hormonal fluctuations during the menstrual cycle do not alter key metabolic responses to high-intensity exercise.
Area of Science:
- Exercise Physiology
- Reproductive Endocrinology
Background:
- The menstrual cycle involves significant hormonal fluctuations.
- Understanding how these hormonal changes affect athletic performance is crucial for female athletes.
Purpose of the Study:
- To investigate the influence of different menstrual cycle phases on sprinting performance, recovery, and metabolic responses.
- To determine if hormonal variations during the menstrual cycle impact high-intensity exercise outcomes.
Main Methods:
- Eight female participants completed repeated 30-second sprints on a non-motorized treadmill.
- Sprints were performed across three menstrual cycle phases: follicular, midcycle, and luteal.
- Hormonal levels (17beta-estradiol, progesterone) were verified via radioimmunoassay.
Main Results:
- Peak power output (PPO) and mean power output (MPO) during sprints were not significantly different across menstrual cycle phases.
- Percentage recovery of PPO and MPO between sprints remained unchanged.
- Blood lactate, blood pH, plasma ammonia, and estimated plasma volume were unaffected by menstrual cycle phase.
Conclusions:
- Hormonal fluctuations associated with the menstrual cycle do not appear to interfere with maximal intensity sprinting performance.
- Metabolic responses to high-intensity exercise are not significantly altered by the menstrual cycle phase in females.
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