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Advances in Preventive Medicine
Volume 2017 (2017), Article ID 7301676, 1 page
Letter to the Editor

Comment on “Interrelationship between Sleep and Exercise: A Systematic Review”

1Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia
2Faculty of Science, Carthage University, Bizerte, Tunisia
3High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
4Laboratoire CeRSM (EA 2931), Equipe de Physiologie, Biomécanique et Imagerie du Mouvement, UFR STAPS, Université Paris Ouest Nanterre La Défense, Nanterre, France
5National Observatory of Sports, Tunis, Tunisia

Correspondence should be addressed to Mohamed A. Mejri

Received 9 July 2017; Accepted 7 August 2017; Published 20 August 2017

Academic Editor: William C. Cho

Copyright © 2017 Mohamed A. Mejri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

We have read with interest the article from Dolezal et al. [1], entitled “Interrelationship between Sleep and Exercise: A Systematic Review,” which highlighted the links between sleep, physical exercise, and health. As authors of the articles 55, 56 cited in the above manuscript [1], we would like to correct information in Section , “Exercise and Sleep in Special Populations”: “Several studies reported that one night of sleep deprivation can result in metabolic irregularities, such as decreased plasma lactate concentration as well as increased creatine phosphokinase and myoglobin levels, after a bout of exercise the following morning 55, 56.” Please note the exercise was not done the morning after the night of sleep deprivation. Rather, it was done the following evening (i.e., at 17:00 h) 55, 56.

This methodological detail is very important, given that in our previous study [2] we did not find any effect of one night of sleep deprivation on performance or plasma lactate levels during a bout of exercise performed the following morning (i.e., at 07:00 h). On the other hand, we have found that one-night sleep deprivation did not affect the basal physiological responses (i.e., heart rate, arterial oxygen saturation, and systolic and diastolic blood pressure) and biomarkers of lipid profile (i.e., total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglyceride) [3]. However, basal cardiac damage biomarkers were significantly increased in this study [3].

Conflicts of Interest

The authors declared no conflicts of interest.


  1. B. A. Dolezal, E. V. Neufeld, D. M. Boland, J. L. Martin, and C. B. Cooper, “Interrelationship between sleep and exercise: a systematic review,” Advances in Preventive Medicine, vol. 2017, Article ID 1364387, 14 pages, 2017. View at Publisher · View at Google Scholar
  2. M. A. Mejri, O. Hammouda, K. Zouaoui et al., “Effect of two types of partial sleep deprivation on Taekwondo players performance during intermittent exercise,” Biological Rhythm Research, vol. 45, no. 1, pp. 17–26, 2014. View at Publisher · View at Google Scholar · View at Scopus
  3. M. A. Mejri, O. Hammouda, N. Yousfi et al., “One night of partial sleep deprivation affects biomarkers of cardiac damage, but not cardiovascular and lipid profiles, in young athletes,” Biological Rhythm Research, vol. 46, no. 5, pp. 715–724, 2015. View at Publisher · View at Google Scholar · View at Scopus