The impact of menstrual cycle phase and symptoms on sleep, recovery, and stress in elite female basketball athletes: a longitudinal study.

Higher MSi scores, reflecting more severe menstrual-related complaints, were associated with lower sleep quality (log-transformed; β = −0.009; p = .047), less restful sleep ( β = −0.03; p = .019), and showed a trend-level association with more WASO ( β = 0.39; p = .070).

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