Exercise · 7 Oct 2026
Active Voice | Menstrual Cycle Phase-Based Training: Think Before You Sync
Source: ACSM
What the research found
For decades, researchers excluded females from resistance training research, often because of concerns about how endogenous ovarian hormones might influence adaptations. Premenopausal female physiology is unique because ovarian hormone concentrations fluctuate throughout the menstrual cycle. In particular, estrogen concentrations typically peak during the late follicular phase before ovulation, while progesterone con
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