The effects of lunar cycle on the diurnal variations of short-term maximal performance, mood state, and perceived exertion

Chronobiology International
Ismail DergaaO Hammouda

Abstract

The aim of this study was to explore the effect of the lunar cycle and time of day on short-term maximal performance, wellness and mood state. Twenty healthy active men performed a running anaerobic sprint test (RAST) at four sessions (full moon (FM) and new moon (NM) in the morning and in the evening). Before each testing session, participants completed a rating scale of mood states (POMS) and a psychometric rating scale of perceived wellness (Hooper's questionnaire). Rating of perceived exertion (RPE) was collected just after the RAST. A higher rating of sleep was observed in FM compared to NM upon the morning and the evening (FM morning vs. NM morning, p < .01; d = 1.38) and (FM evening vs. NM evening, p < .001; d = 2.62). POMS subscales data revealed no significant lunar cycle effect. Peak power (PP), average power (AP) and minimal power (MP) were greater in the evening following NM compared to FM (NM evening vs. FM evening, p< .01, <0.01, <0.05; d = 0.77, = 0.78, = 0.68, respectively). Likewise, RAST performance was greater in the evening compared to the morning for both lunar cycle phases (FM evening vs. FM morning, p< .001, <0.01, <0.01; d = 1.08, = 1, = 0.85) and (NM evening vs. NM morning, p< .001, <0.01, <0.01; d= 1.0...Continue Reading

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Citations

Mar 30, 2021·Chronobiology International·Ismail DergaaOmar Hammouda

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