Hormonal
Late-afternoon physical performance (strength, power, flexibility) is generally superior to morning performance due to increased core body temperature enhancing peripheral mechanisms like nerve conduction and blood flow.
Schedule your most demanding physical workouts (heavy lifting, sprinting, competitive events) for the late afternoon (4 PM - 8 PM). Your body temperature is higher, which improves nerve conduction, joint flexibility, and blood flow to muscles, leading to better performance and reduced injury risk compared to morning workouts.
Diurnal variation of sports performance usually peaks in the late afternoon, coinciding with increased body temperature. This circadian pattern of performance may be explained by the effect of increased core temperature on peripheral mechanisms...
Why this rating
The review synthesizes numerous studies showing consistent diurnal patterns across various metrics.
Source
INTERACTIONS OF CORTISOL, TESTOSTERONE, AND RESISTANCE TRAINING: INFLUENCE OF CIRCADIAN RHYTHMS
Lawrence D. Hayes et al. · Chronobiology International · 2010
DOI 10.3109/07420521003778773
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