A daytime 40-min nap opportunity after a simulated late evening soccer match reduces the perception of fatigue and improves 5-m shuttle run performance

Hsen Hsouna, Omar Boukhris, David W Hill, Raouf Abdessalem, Khaled Trabelsi, Achraf Ammar, Khadijah Irandoust, Nizar Souissi, Morteza Taheri, Omar Hammouda, Cain C T Clark, Tarak Driss, Hamdi Chtourou

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The effect of a 40-min nap opportunity was investigated during the day following a late evening simulated soccer match. Twelve male amateur soccer players (23 ± 3 years; 77.3 ± 5.3 kg; 1.76 ± 0.04 m) performed the Loughborough-intermittent-shuttle test at 21h00 and the following day they completed the sleepiness scale after either a nonap (N0) or 40-min nap (N40) opportunity that began at 14h00. At 17h00, participants performed the 5-m shuttle run test (5mSRT) (6 × 30-s with 35-s in-between; best distance (BD) and total distance (TD) were calculated). After performing the 5mSRT, they provided their rating of the perceived exertion (RPE) and rated their muscle soreness. Sleepiness scores were significantly lower in N40 in comparison with N0 (P < 0.05). A significant increase of TD (+64.5 m) and BD (+9.6 m) after N40 compared to N0 was observed (P < 0.05). The improved performance was associated with reduced levels of muscle soreness and lower RPE. In conclusion, a daytime 40-min nap opportunity after a late evening simulated soccer match improves short-term repetitive maximal performance in soccer players, and has positive effects on perception of sleepiness, muscle soreness, and RPE.

    Original languageEnglish
    Pages (from-to)(In-Press)
    Number of pages14
    JournalResearch in Sports Medicine
    Volume(In-Press)
    Early online date17 May 2021
    DOIs
    Publication statusE-pub ahead of print - 17 May 2021

    Keywords

    • Sleep
    • fatigue
    • nocturnal training
    • performance
    • sport

    ASJC Scopus subject areas

    • Orthopedics and Sports Medicine
    • Physical Therapy, Sports Therapy and Rehabilitation

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