Claire Zai

The Menstrual Cycle, Estrogen and Performance: Part IV

In the final part of this series we will look at how altering exercise programming based on the menstrual cycle actually affects strength in athletes. Previous parts of this series are available here (Part III), here (Part II), here (Part I). The Science on Periodizing Training Based on The Menstrual Cycle  The evidence that points […]

The Menstrual Cycle, Estrogen, and Performance: Part III

In the third installment of this series, we’ll review the data on how the menstrual cycle affects training and sports performance. If you’re new to this series, check out Part I and II, available here and here.  Data on the Effects of the Menstrual Cycle on Performance The main question is how these menstrual cycle […]

The Menstrual Cycle, Estrogen and Performance: Part II

Discussing the biological plausibility that the menstrual cycle affects physical performance requires an understanding of the menstrual cycle’s physiology, exercise’s effect on that physiology, and how changes in the hormones driving the menstrual cycle affect muscles.  In part one of this article series, we covered the physiology of the menstrual cycle. In this article, we’ll dive […]

The Menstrual Cycle, Estrogen and Performance: Part I

The increase in women’s involvement in sports has increased interest in the influences of women’s unique physiology on athletic performance. The effect of the menstrual cycle on athletic performance, is of particular interest. Socially, the menstrual cycle is construed as a time of weakness or inability and often symptoms are dismissed or ignored. Mainstream media […]


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