Browsing by Author "Romdhani, Mohamed"
Now showing items 1-7 of 7
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Caffeine use or napping to enhance repeated sprint performance after partial sleep deprivation: Why not both?
Romdhani, Mohamed; Souissi, Nizar; Moussa-Chamari, Imen; Chaabouni, Yassine; Mahdouani, Kacem; Sahnoun, Zouheir; Driss, Tarak; Chamari, Karim; Hammouda, Omar... more authors ... less authors ( Human Kinetics Publishers Inc. , 2021 , Article)Purpose: To compare the effect of a 20-minute nap opportunity (N20), a moderate dose of caffeine (CAF; 5 mg·kg-1), or a moderate dose of caffeine before N20 (CAF+N) as possible countermeasures to the decreased performance ... -
COVID-19 Lockdowns: A Worldwide Survey of Circadian Rhythms and Sleep Quality in 3911 Athletes from 49 Countries, with Data-Driven Recommendations
Romdhani, Mohamed; Rae, Dale E.; Nédélec, Mathieu; Ammar, Achraf; Chtourou, Hamdi; Al Horani, Ramzi; Ben Saad, Helmi; Bragazzi, Nicola; Dönmez, Gürhan; Driss, Tarak; Fullagar, Hugh H.K.; Farooq, Abdulaziz; Garbarino, Sergio; Hammouda, Omar; Hassanmirzaei, Bahar; Khalladi, Karim; Khemila, Syrine; Mataruna-Dos-Santos, Leonardo Jose; Moussa-Chamari, Imen; Mujika, Iñigo; Muñoz Helú, Hussein; Norouzi Fashkhami, Amin; Paineiras-Domingos, Laisa Liane; Rahbari Khaneghah, Mehrshad; Saita, Yoshitomo; Trabelsi, Khaled; Vitale, Jacopo Antonino; Washif, Jad Adrian; Weber, Johanna; Souissi, Nizar; Taylor, Lee; Chamari, Karim... more authors ... less authors ( Springer Nature , 2021 , Article)Objective: In a convenience sample of athletes, we conducted a survey of COVID-19-mediated lockdown (termed ‘lockdown’ from this point forward) effects on: (i) circadian rhythms; (ii) sleep; (iii) eating; and (iv) training ... -
The effect of caffeine, nap opportunity and their combination on biomarkers of muscle damage and antioxidant defence during repeated sprint exercise
Romdhani, Mohamed; Souissi, Nizar; Dergaa, Ismail; Moussa-Chamari, Imen; Chaabouni, Yassine; Mahdouani, Kacem; Abene, Olfa; Driss, Tarak; Chamari, Karim; Hammouda, Omar... more authors ... less authors ( Institute of Sport , 2021 , Article)To investigate the effect of 20 min nap opportunity (N20), 5 mg·kg-1 of caffeine (CAF) and their combination (CAF+N20) on the biochemical response (energetic biomarkers, biomarkers of muscle damage and enzymatic antioxidants) ... -
The Effect of Experimental Recuperative and Appetitive Post-lunch Nap Opportunities, With or Without Caffeine, on Mood and Reaction Time in Highly Trained Athletes
Romdhani, Mohamed; Souissi, Nizar; Dergaa, Ismael; Moussa-Chamari, Imen; Abene, Olfa; Chtourou, Hamdi; Sahnoun, Zouheir; Driss, Tarak; Chamari, Karim; Hammouda, Omar... more authors ... less authors ( Frontiers Media S.A. , 2021 , Article)Purpose: To investigate the effects of placebo (PLA), 20 min nap opportunity (N20), 5mg·kg−1 of caffeine (CAF), and their combination (CAF+N20) on sleepiness, mood and reaction-time after partial sleep deprivation (PSD; ... -
The effect of post-lunch napping on mood, reaction time, and antioxidant defense during repeated sprint exercice
Romdhani, Mohamed; Dergaa, Ismail; Moussa-Chamari, Imen; Souissi, Nizar; Chaabouni, Yassine; Mahdouani, Kacem; Abene, Olfa; Driss, Tarak; Chamari, Karim; Hammouda, Omar... more authors ... less authors ( Institute of Sport , 2021 , Article)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 ... -
Lockdown Duration and Training Intensity Affect Sleep Behavior in an International Sample of 1,454 Elite Athletes
Romdhani, Mohamed; Fullagar, Hugh H.K.; Vitale, Jacopo A.; Nédélec, Mathieu; Rae, Dale E.; Ammar, Achraf; Chtourou, Hamdi; Al Horani, Ramzi A.; Ben Saad, Helmi; Bragazzi, Nicola Luigi; Dönmez, Gürhan; Dergaa, Ismail; Driss, Tarak; Farooq, Abdulaziz; Hammouda, Omar; Harroum, Nesrine; Hassanmirzaei, Bahar; Khalladi, Karim; Khemila, Syrine; Mataruna-Dos-Santos, Leonardo Jose; Moussa-Chamari, Imen; Mujika, Iñigo; Muñoz Helú, Hussein; Norouzi Fashkhami, Amin; Paineiras-Domingos, Laisa Liane; Khaneghah, Mehrshad Rahbari; Saita, Yoshitomo; Souissi, Nizar; Trabelsi, Khaled; Washif, Jad Adrian; Weber, Johanna; Zmijewski, Piotr; Taylor, Lee; Garbarino, Sergio; Chamari, Karim... more authors ... less authors ( Frontiers Media S.A. , 2022 , Article)Objective: To investigate the effect of 1) lockdown duration and 2) training intensity on sleep quality and insomnia symptoms in elite athletes. Methods: 1,454 elite athletes (24.1 ± 6.7 years; 42% female; 41% individual ... -
Ramadan Observance Exacerbated the Negative Effects of COVID-19 Lockdown on Sleep and Training Behaviors: A International Survey on 1,681 Muslim Athletes
Romdhani, Mohamed; Ammar, Achraf; Trabelsi, Khaled; Chtourou, Hamdi; Vitale, Jacopo A.; Masmoudi, Liwa; Nédélec, Mathieu; Rae, Dale E.; Al Horani, Ramzi A.; Ben Saad, Helmi; Bragazzi, Nicola; Dönmez, Gürhan; Dergaa, Ismail; Driss, Tarak; Farooq, Abdulaziz; Hammouda, Omar; Harroum, Nesrine; Hassanmirzaei, Bahar; Khalladi, Karim; Khemila, Syrine; Mataruna-Dos-Santos, Leonardo Jose; Moussa-Chamari, Imen; Mujika, Iñigo; Muñoz Helú, Hussein; Norouzi Fashkhami, Amin; Paineiras-Domingos, Laisa Liane; Khaneghah, Mehrshad Rahbari; Saita, Yoshitomo; Souabni, Maher; Souissi, Nizar; Washif, Jad Adrian; Weber, Johanna; Zmijewski, Piotr; Taylor, Lee; Garbarino, Sergio; Chamari, Karim... more authors ... less authors ( Frontiers Media S.A. , 2022 , Article)Objective: Disrupted sleep and training behaviors in athletes have been reported during the COVID-19 pandemic. We aimed at investigating the combined effects of Ramadan observance and COVID-19 related lockdown in Muslim ...