Plasma Volume Variations in Professional Soccer Players: Difference Between Pre- and Competitive Season

Authors

  • Abderraouf Ben Abderrahman Higher Institute of Sport and Physical Education of Ksar-Said, University of Manouba, Manouba, Tunisia Author https://orcid.org/0000-0003-1351-8717
  • Nidhal Jebabli Research Unit Sport Sciences, Health and Movement, High Institute of Sport and Physical Education of Kef, University of Jendouba, Jendouba, Tunisia Author https://orcid.org/0000-0002-6328-4915
  • Fatma Rhibi Movement, Sport, Health and Sciences Laboratory, University of Rennes, Rennes, France Author https://orcid.org/0000-0003-4017-7663
  • Fabien Rivière Movement, Sport, Health and Sciences Laboratory, University of Rennes, Rennes, France Author
  • Emmeran Le Moal Movement, Sport, Health and Sciences Laboratory, University of Rennes, Rennes, France Author
  • Ismail Laher Department of Anesthesiology, Pharmacology and Therapeutics, the University of British Columbia, Vancouver, Canada Author
  • Hassane Zouhal Movement, Sport, Health and Sciences Laboratory, University of Rennes, Rennes, France| International Institute of Sports Sciences, Irodouer, France Author

DOI:

https://doi.org/10.61838/kman.intjssh.5.2.3

Keywords:

Hematological Parameters, Anthropometrics Characteristics, Training Load, Elite Soccer Players

Abstract

Background:  Variations in plasma volume and hematological parameters occur before and after training in soccer players. However, there are no reports on changes in hematological parameters resulting from a half-season of training in professional soccer players. Objectives:  To investigate the effects of training load on plasma volume variations in elite soccer players. Methods:  Twenty soccer players from the 1st French division soccer league (Ligue 1) were included in the study. The training load was evaluated using the rating of perceived exertion (RPE, 10- Borg scale) after each training session and each match. Anthropometrics characteristics, hematocrit (Ht), hemoglobin (Hb) and plasma volume variations (PVV) were assessed at 3 different times: T1: Baseline (before the first week of pre-season), T2: At the end of pre-season (after 8 weeks of training) and T3: At the end of the first competitive period (after 26 weeks of training and at halfway of the competitive season). Results:  Values of Ht and lean body mass (LBM) increased during the first competitive period from T1 to T3 (Ht: ∆↑8%, P = 0.037, effect sizes (ES) = 1.0; LBM: ∆↑4%, P = 0.041, ES = 0.83) and from T2 to T3 (LBM: (∆↑2%; P = 0.05; ES = 0.77). Moreover, PVV decreased from T2 to T3 (P = 0.002, ES = 0.5) and from T1 to T3 (P < 0.05; ES = 1.26). There were no differences in Hb at T1, T2 or T3. Conclusions:  Changes in body weights, PVV and Ht during preparatory and competitive phases were affected by the training load and competitive play.

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Published

2023-01-11

How to Cite

Ben Abderrahman, A., Jebabli, N., Rhibi, F., Rivière, F., Le Moal, E., Laher, I., & Zouhal, H. (2023). Plasma Volume Variations in Professional Soccer Players: Difference Between Pre- and Competitive Season. International Journal of Sport Studies for Health, 5(2), 18-24. https://doi.org/10.61838/kman.intjssh.5.2.3