Title Pre-sleep feeding, sleep quality, and markers of recovery in division I NCAA female soccer players.
Author Greenwalt, Casey E; Angeles, Elisa; Vukovich, Matthew D; Smith-Ryan, Abbie E; Bach, Chris W; Sims, Stacy T; Zeleny, Tucker; Holmes, Kristen E; Presby, David M; Schiltz, Katie J; Dupuit, Marine; Renteria, Liliana I; Ormsbee, Michael J
Journal J Int Soc Sports Nutr Publication Year/Month 2023-Dec
PMID 37470428 PMCID PMC10360998
Affiliation + expend 1.Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA.

Pre-sleep nutrition habits in elite female athletes have yet to be evaluated. A retrospective analysis was performed with 14 NCAA Division I female soccer players who wore a WHOOP, Inc. band - a wearable device that quantifies recovery by measuring sleep, activity, and heart rate metrics through actigraphy and photoplethysmography, respectively - 24 h a day for an entire competitive season to measure sleep and recovery. Pre-sleep food consumption data were collected via surveys every 3 days. Average pre-sleep nutritional intake (mean +/- sd: kcals 330 +/- 284; cho 46.2 +/- 40.5 g; pro 7.6 +/- 7.3 g; fat 12 +/- 10.5 g) was recorded. Macronutrients and kcals were grouped into high and low categories based upon the 50(th) percentile of the mean to compare the impact of a high versus low pre-sleep intake on sleep and recovery variables. Sleep duration (p = 0.10, 0.69, 0.16, 0.17) and sleep disturbances (p = 0.42, 0.65, 0.81, 0.81) were not affected by high versus low kcal, PRO, fat, CHO intake, respectively. Recovery (p = 0.81, 0.06, 0.81, 0.92), RHR (p = 0.84, 0.64, 0.26, 0.66), or HRV (p = 0.84, 0.70, 0.76, 0.93) were also not affected by high versus low kcal, PRO, fat, or CHO consumption, respectively. Consuming a small meal before bed may have no impact on sleep or recovery.

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