Beyond the Rule: How the Menstrual Cycle Can Influence Women's Physical Activity

As women's participation in sports and physical exercise surges, a critical gap persists: most training protocols remain rooted in findings from male athletes. This oversight extends to social media, where fitness influencers often share routines tailored to male physiological responses, neglecting the unique impact of the female menstrual cycle.

The menstrual cycle, a complex biological process regulated by the hypothalamus-pituitary-ovary system, is influenced by various factors including psychoemotional, cultural, sociopolitical, and environmental aspects. It begins on the first day of menstruation and typically lasts between 21 to 35 days, with variations depending on age. Understanding its four distinct phases is crucial for women aiming to optimize their physical activity.

During the follicular phase (days 1-14), increased estrogen levels enhance aerobic capacity, improve mood stability, and boost muscle repair. However, some studies also indicate a higher risk of anterior cruciate ligament injuries during this period. The proliferative phase (days 8-12 after menstruation) sees further endometrial growth, and women often experience increased energy and better moods.

Ovulation, occurring about 14 days before the next menstruation, is marked by a surge in luteinizing hormone and peak estrogen levels. This phase is critical for potential pregnancy. Recognizing how these hormonal shifts affect energy, strength, mood, and recovery allows women to tailor their training regimens, ensuring they align with their body's natural rhythms for better performance and well-being.