The Acute Effects of 25-Versus 60-Minute Naps on Agility and Vertical Jump Performance in Elite Youth Soccer Players: The Role of Individual Chronotype

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dc.contributor.authorEken, Ozgur
dc.contributor.authorOncu, Mertkan
dc.contributor.authorKurtoglu, Ahmet
dc.contributor.authorBozkurt, Oguzhan
dc.contributor.authorTurkmen, Musa
dc.contributor.authorAldhahi, Monira I.
dc.date.accessioned2026-04-04T13:31:01Z
dc.date.available2026-04-04T13:31:01Z
dc.date.issued2025
dc.departmentİnönü Üniversitesi
dc.description.abstractIntroduction: While napping is recognized as an effective strategy for mitigating insufficient sleep and enhancing athletic recovery, limited research exists on its effects on football players' anaerobic performance, particularly concerning chronotype variations. This study investigated the impact of strategic napping durations on anaerobic performance and agility in football players under the age of 19 (U19), considering individual chronotypes and psychological factors. Methods: Sixteen young football players (age: 17.18 +/- 1.04 years) participated in this crossover randomized controlled study. Participants underwent three conditions: no nap (NoN), 25 min nap (N25), and 60 min nap (N60), with 48 h washout periods between sessions. Performance was assessed using the Countermovement Jump Test (CMJ), Illinois Agility Test, and Illinois Change-of-Direction Test with Ball. Chronotype assessment, sleep quality, and mood states were evaluated using the Morningness-Eveningness Questionnaire, Pittsburgh Sleep Quality Index, and Profile of Mood States Questionnaire, respectively. Results: The 60 min nap protocol demonstrated significant improvements in agility performance compared to other conditions, particularly in the Illinois Agility Test and Change-of-Direction Test with Ball. However, no significant differences were observed in CMJ parameters across napping conditions. Chronotype variations showed correlations with agility performance and psychological factors, with evening-type participants displaying different responses to napping interventions compared to morning-type participants. Conclusions: While a 60 min post-lunch nap did not affect anaerobic performance, it positively influenced agility performance in soccer players. Chronotypic differences significantly impacted both agility performance and associated psychological factors. These findings suggest that integrating napping strategies into athletic training programs, while considering individual chronotypic variations, may present opportunities for enhancing specific aspects of athletic performance. Further research is needed to elucidate the underlying physiological, psychological, and cognitive mechanisms of these effects.
dc.description.sponsorshipPrincess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia; Princess Nourah bint Abdulrahman University Researchers Supporting Project [PNURSP2025R286]
dc.description.sponsorshipThis research was funded by Princess Nourah bint Abdulrahman University Researchers Supporting Project number (PNURSP2025R286), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
dc.identifier.doi10.3390/life15030422
dc.identifier.issn2075-1729
dc.identifier.issue3
dc.identifier.orcid0000-0002-5255-4860
dc.identifier.orcid0009-0007-1476-6284
dc.identifier.orcid0000-0002-5488-3158
dc.identifier.pmid40141767
dc.identifier.scopus2-s2.0-105001379821
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/life15030422
dc.identifier.urihttps://hdl.handle.net/11616/108531
dc.identifier.volume15
dc.identifier.wosWOS:001453243000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofLife-Basel
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250329
dc.subjectchronotype
dc.subjectstrategic napping
dc.subjectagility performance
dc.subjectyouth football players
dc.subjectcountermovement jump
dc.titleThe Acute Effects of 25-Versus 60-Minute Naps on Agility and Vertical Jump Performance in Elite Youth Soccer Players: The Role of Individual Chronotype
dc.typeArticle

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