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Field assessment of melatonin timing reveals circadian misalignment beyond chronotype in elite female football players
Melatonin timing shows internal clock misalignment beyond sleep preference in elite female soccer players
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Abstract
Elevated melatonin one hour after waking is associated with lower subjective well-being.
- A longer phase angle between melatonin onset and sleep onset is associated with longer total sleep duration.
- Being an evening chronotype is independently associated with shorter total sleep duration.
- Sharing a room with a dissimilar chronotype is also associated with shorter total sleep duration.
- These findings indicate that real-life circadian timing influences both sleep and well-being in elite athletes.
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Key numbers
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Percentage of Athletes Experiencing Misalignment
Athletes waking during biological night based on melatonin levels.
7.37 h
Total Sleep Time in Mixed Chronotype Rooms
Average sleep time for athletes sharing rooms with mixed chronotypes.
5.93 h
Total Sleep Time in Same Chronotype Rooms
Average sleep time for athletes sharing rooms with the same chronotype.