Biology of Sport
eISSN: 2083-1862
ISSN: 0860-021X
Biology of Sport
Current Issue Manuscripts accepted About the journal Editorial board Abstracting and indexing Archive Ethical standards and procedures Contact Instructions for authors Journal's Reviewers Special Information
SCImago Journal & Country Rank


4/2021
vol. 38
 
Share:
Share:
more
 
 
abstract:
Original paper

The effect of post-lunch napping on mood, reaction time, and antioxidant defense during repeated sprint exercice.

Mohamed Romdhani
1, 2
,
Ismail Dergaa
2
,
Imen Moussa-Chamari
3
,
Nizar Souissi
1, 2
,
Yassine Chaabouni
4, 5
,
Kacem Mahdouani
4, 5
,
Olfa Abene
6
,
Tarak Driss
7
,
Karim Chamari
8, 9, 1
,
Omar Hammouda
7, 10

1.
High Institute of Sport and Physical Education, Ksar-Said, Manouba University, Manouba, Tunisia
2.
Physical activity, Sport and health, UR18JS01, National Observatory of Sports, Tunis, Tunisia
3.
College of Education, Physical Education Department, Qatar University, Qatar
4.
Department of biochemistry, CHU Ibn Jazzar, Kairouan, Tunisia
5.
Laboratory of Analysis, Treatment and Valorization of Pollutants of the Environment and Products (LATVEP) Faculty of pharmacy, University of Monastir, Monastir, Tunisia
6.
Regional center of sport medicine Kairouan, Tunisia
7.
Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS, UPL, Paris Nanterre University, Nanterre, France
8.
ASPETAR, Qatar Orthopedic and Sports Medicine Hospital, Doha, Qatar
9.
Research Laboratory “Sports performance Optimization”, National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia
10.
Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia
Biol Sport. 2021;38(4):629–638.
Online publish date: 2021/02/17
View full text
Get citation
ENW
EndNote
BIB
JabRef, Mendeley
RIS
Papers, Reference Manager, RefWorks, Zotero
AMA
APA
Chicago
Harvard
MLA
Vancouver
 
To 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 (Nonap), 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.
keywords:

Midday sleep, Short-term Exercise, Biomarkers of Muscle Damage, Antioxidant Status, Ergogenic aid, Cognitive Performance

 
Quick links
© 2021 Termedia Sp. z o.o. All rights reserved.
Developed by Bentus.