Randomized Trialhigh evidence
Menstrual Cycle Phase Does Not Influence Training-Induced Muscle Hypertrophy or Strength: A Randomized Controlled Trial.
Medicine and science in sports and exercise·May 18, 2026·PMID 42160459
Why it mattersMany female athletes and trainers adjust training based on menstrual cycle phase, but evidence for this practice is limited. This study provides high-quality data that such adjustments are unnecessary for muscle adaptations, allowing clinicians to reassure patients and simplify exercise prescriptions.
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