September 28, 2026 · 11 MIN
Polarized Training for Female Athletes: VO2max Adaptation and Menstrual Cycle Periodization
Female athletes show 8-12% VO2max improvement with polarized training versus 4-6% with threshold-heavy models. The 80/20 intensity distribution should shift across menstrual cycle phases — 85/15 in the luteal phase and 75/25 in the early follicular phase — to match hormonal fluctuations in exercise tolerance and fat oxidation.
