Physical activity, athletic performance, and recovery: The role of sleep

Physical activity is widely recognized for its benefits on physical and mental health. However, interactions between sleep, athletic performance, and recovery remain complex and incompletely understood. This narrative review synthesizes recent evidence on the relationships between physical activity, mental health, sleep, and performance, and outlines potential therapeutic perspectives.

We reviewed recent meta-analyses, randomized controlled trials, observational studies, and expert consensus statements addressing physical activity, sleep, mental health, athletic performance, recovery, napping, and circadian factors in both general and athletic populations.

Physical activity shows a clear inverse dose-response relationship with depression risk, with even moderate levels conferring significant mental health benefits. Regular physical activity (≥150min/week of moderate-to-vigorous activity) significantly reduces insomnia symptoms, improves sleep efficiency, and is associated with reduced anxiety and depressive symptoms. Sleep is a key determinant of athletic performance, yet 50-78% of athletes report sleep complaints, often related to training schedules, competitions, intense light exposure, and travel-induced jet lag. Sleep deprivation impairs performance, particularly in sports requiring fine motor skills and sustained cognitive functioning and contributes to overtraining and prolonged performance decrements. Adequate sleep duration and sleep extension are associated with improved recovery and sport-specific performance. Napping may support recovery and vigilance, but its benefits depend on duration and timing, with a risk of sleep inertia following long naps (>30min).

Sleep represents a pillar of mental health, athletic performance, and recovery. Integrating sleep-aware training schedules, circadian principles, and individualized physical activity programs may optimize both health, performance and recovery outcomes.