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0163 Longitudinal Assessment of Objective Sleep and Power Output During Fall Training in Division I Collegiate Athletes
Abstract   Open access   Peer reviewed

0163 Longitudinal Assessment of Objective Sleep and Power Output During Fall Training in Division I Collegiate Athletes

Jeremy Bigalke, Katherine Lee, Jennifer Bigalke, Michael Scullin, Andrew Gallucci and Jason Carter
Sleep (New York, N.Y.), Vol.47(Supplement_1), pp.A70-A71
05/01/2024
DOI: 10.1093/sleep/zsae067.0163
url
https://doi.org/10.1093/sleep/zsae067.0163View
Published (Version of record) Open Access

Abstract

Introduction Cross-sectional analyses have linked poor sleep to impaired athletic performance. While acute sleep restriction impairs athletic performance, longitudinal investigation of intraindividual sleep and performance variations over time have been sparsely assessed. The purpose of the present study was to determine the relationship between objective habitual sleep and peak power output variations over fall training in Division I collegiate baseball players. We hypothesized that greater total sleep time (TST) and better sleep efficiency (SE) among athletes would be associated with greater improvements in peak power output throughout fall training. Methods Twenty-three healthy college baseball players (age: 21±1 years) participated during fall training. Peak power output was assessed weekly for twelve weeks. During the final six weeks of the fall season, all participants were asked to wear Oura rings to objectively determine daily TST and SE within each athlete. The slope of change in peak power output (Pslope) across fall training was compared to objective sleep outcomes. To assess the impact of intraindividual consistency in achieving adequate sleep, Pslope was also compared to the proportion of nights in which TST met or exceeded 7 hours, and the proportion of nights which sleep efficiency met or exceeded 90% within each participant. Results Over the 6-wk sleep assessment, participants had a TST of 7.3±1 hours per night and a SE of 89±2%. TST (r=0.398, p=0.067) and SE (r=0.356, p=0.096), demonstrated medium-sized associations with Pslope. The proportion of nights during which TST met or exceeded 7 hours showed a pronounced association with Pslope (r=0.525, p=0.010). Similarly, the proportion of nights during which SE met or exceeded 90% was significantly associated with Pslope (r=0.471, p=0.023). Lastly, the number of nocturnal awakenings was inversely correlated with Pslope (r=-0.468, p=0.024). Conclusion Sleep quantity, quality, and consistency during the collegiate baseball fall training showed medium to large associations with improvements in peak power. Further research is needed to establish a causative, mechanistic relationship between sleep and associations with training performance outcomes. Support (if any)
 Athletic performance Baseball Sleep

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