Injury Incidence Across the Menstrual Cycle in International Footballers

Objectives: This study aimed to assess how menstrual cycle phase and extended length influence the incidence of injuries in international footballers. Methods: Over a 4-year period, from England footballers at training camps or matches were recorded, alongside self-reported information on characteristics point injury. Injuries eumenorrheic players categorized into early follicular, late luteal phase. Frequencies also compared between recorded during typical those that occurred after would be expected have finished. Injury rates (per 1,000 person days) injury rate ratios calculated for each all stratified by type. Results: One hundred fifty-six 113 eligible analysis. per person-days 31.9 46.8 35.4 phase, resulting 1.47 (Late follicular:Follicular), 1.11 (Luteal:Follicular), 0.76 (Luteal:Late follicular). incident showed muscle tendon 88% greater follicular with rupture/tear/strain/cramps injuries/ruptures occurring over twice as often other phases 20% reported when athletes “overdue” menses. Conclusion: Muscle almost risk may elevated typically women days their next menstruation was start.