Plasma Volume Variations in Professional Soccer Players: Difference Between Pre- and Competitive Season
| Author | Abderraouf Ben Abderrahman | en |
| Author | Nidhal Jebabli | en |
| Author | Fatma Rhibi | en |
| Author | Fabien Rivière | en |
| Author | Emmeran Le Moal | en |
| Author | Ismail Laher | en |
| Author | Hassane Zouhal | en |
| Orcid | Abderraouf Ben Abderrahman [0000-0003-1351-8717] | en |
| Orcid | Nidhal Jebabli [0000-0002-6328-4915] | en |
| Orcid | Fatma Rhibi [0000-0003-4017-7663] | en |
| Issued Date | 2022-10-31 | en |
| 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. | en |
| DOI | https://doi.org/10.5812/intjssh-134030 | en |
| Keyword | Hematological Parameters | en |
| Keyword | Anthropometrics Characteristics | en |
| Keyword | Training Load | en |
| Keyword | Elite Soccer Players | en |
| Publisher | Brieflands | en |
| Title | Plasma Volume Variations in Professional Soccer Players: Difference Between Pre- and Competitive Season | en |
| Type | Research Article | en |
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