1. Effects of a six-week period of congested match play on plasma volume variations, hematological parameters, training workload and physical fitness in elite soccer players
- Author
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Saidi, Karim, Zouhal, Hassane, Rhibi, Fatma, Tijani, Jed M., Boullosa, Daniel, Chebbi, Amel, Hackney, Anthony C., Granacher, Urs, Bideau, Benoit, Ben Abderrahman, Abderraouf, Laboratoire Mouvement Sport Santé (M2S), École normale supérieure - Cachan (ENS Cachan)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université de Brest (UBO)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Université de la Manouba [Tunisie] (UMA), Universidade Católica de Brasília (UCB), Université de Tunis, University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC), Universität Potsdam, Université de Rennes (UR)-École normale supérieure - Rennes (ENS Rennes)-Université de Brest (UBO)-Université de Rennes 2 (UR2)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Universidade Católica de Brasília=Catholic University of Brasília (UCB), and University of Potsdam = Universität Potsdam
- Subjects
Male ,Physiology ,Science ,Social Sciences ,Workload ,Biochemistry ,Running ,Body Mass Index ,Strukturbereich Kognitionswissenschaften ,Young Adult ,Animal Cells ,Red Blood Cells ,Soccer ,Medicine and Health Sciences ,[SDV.MHEP.PHY]Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO] ,Psychology ,Humans ,Public and Occupational Health ,Hemoglobin ,ddc:610 ,Plasma Volume ,Behavior ,Blood Cells ,Hematologic Tests ,Biological Locomotion ,Biology and Life Sciences ,Proteins ,Hematology ,Physical Activity ,Cell Biology ,Sports Science ,Body Fluids ,Blood ,Adipose Tissue ,Physical Fitness ,Recreation ,Medicine ,ddc:500 ,Cellular Types ,Anatomy ,Research Article ,Sports - Abstract
Objectives The aims of this study were to investigate the effects of a six-week in-season period of soccer training and games (congested period) on plasma volume variations (PV), hematological parameters, and physical fitness in elite players. In addition, we analyzed relationships between training load, hematological parameters and players’ physical fitness. Methods Eighteen elite players were evaluated before (T1) and after (T2) a six-week in-season period interspersed with 10 soccer matches. At T1 and T2, players performed the Yo-Yo intermittent recovery test level 1 (YYIR1), the repeated shuttle sprint ability test (RSSA), the countermovement jump test (CMJ), and the squat jump test (SJ). In addition, PV and hematological parameters (erythrocytes [M/mm3], hematocrit [%], hemoglobin [g/dl], mean corpuscular volume [fl], mean corpuscular hemoglobin content [pg], and mean hemoglobin concentration [%]) were assessed. Daily ratings of perceived exertion (RPE) were monitored in order to quantify the internal training load. Results From T1 to T2, significant performance declines were found for the YYIR1 (p, Postprints der Universität Potsdam : Humanwissenschaftliche Reihe, 572
- Published
- 2019