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AuthorRomdhani, Mohamed
AuthorDergaa, Ismail
AuthorMoussa-Chamari, Imen
AuthorSouissi, Nizar
AuthorChaabouni, Yassine
AuthorMahdouani, Kacem
AuthorAbene, Olfa
AuthorDriss, Tarak
AuthorChamari, Karim
AuthorHammouda, Omar
Available date2023-12-14T09:35:15Z
Publication Date2021
Publication NameBiology of Sport
Identifierhttp://dx.doi.org/10.5114/biolsport.2021.103569
CitationRomdhani, M., Dergaa, I., Moussa-Chamari, I., Souissi, N., Chaabouni, Y., Mahdouani, K., ... & Hammouda, O. (2021). The effect of post-lunch napping on mood, reaction time, and antioxidant defense during repeated sprint exercice. Biology of Sport, 38(4), 629-638.
ISSN0860-021X
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85103384435&origin=inward
URIhttp://hdl.handle.net/10576/50444
AbstractTo compare the effects of two nap opportunities (20 and 90 min) to countermeasure the transient naturally occurring increased sleepiness and decreased performances during the post-lunch dip (PLD). Fourteen highly trained judokas completed in a counterbalanced and randomized order three test sessions (control (No-nap), 20- (N20) and 90-min (N90) nap opportunities). Test sessions consisted of the running-based anaerobic sprint test (RAST), simple and multiple-choice reaction times (MCRT) and the Epworth sleepiness scale (ESS). From the RAST, the maximum (Pmax), mean (Pmean) and minimum (Pmin) powers were calculated. Blood samples were taken before and after the RAST to measure the effect of pre-exercise napping on energetic and muscle damage biomarkers and antioxidant defense. N20 increased Pmax and Pmean compared to No-nap (p < 0.001, d = 0.59; d = 0.66) and N90 (p < 0.001, d = 0.98; d = 0.72), respectively. Besides, plasma lactate and creatinine increased only when the exercise was performed after N20. Both N20 (p < 0.001, d = 1.18) and N90 (p < 0.01, d = 0.78) enhanced post-exercise superoxide dismutase activity compared to No-nap. However, only N20 enhanced post-exercise glutathione peroxidase activity (p < 0.001, d = 1.01) compared to pre-nap. Further, MCRT performance was higher after N20 compared to No-nap and N90 (p < 0.001, d = 1.15; d = 0.81, respectively). Subjective sleepiness was lower after N20 compared to No-nap (p < 0.05, d = 0.92) and N90 (p < 0.01, d = 0.89). The opportunity to nap for 20 min in the PLD enhanced RAST, MCRT performances, and antioxidant defense, and decreased sleepiness. However, the opportunity of 90 min nap was associated with decreased repeated sprint performances and increased sleepiness, probably because of the sleep inertia.
Languageen
PublisherInstitute of Sport
SubjectAntioxidant Status
Biomarkers of Muscle Damage
Cognitive Performance
Ergogenic aid
Midday sleep
Short-term Exercise
TitleThe effect of post-lunch napping on mood, reaction time, and antioxidant defense during repeated sprint exercice
TypeArticle
Pagination629-638
Issue Number4
Volume Number38
ESSN2083-1862
dc.accessType Open Access


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