1
|
Coppalle S, Ravé G, Moran J, Salhi I, Abderrahman AB, Zouita S, Granacher U, Zouhal H. Internal and External Training Load in Under-19 versus Professional Soccer Players during the In-Season Period. Int J Environ Res Public Health 2021; 18:E558. [PMID: 33440830 PMCID: PMC7826948 DOI: 10.3390/ijerph18020558] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 11/17/2022]
Abstract
This study aimed to compare the training load of a professional under-19 soccer team (U-19) to that of an elite adult team (EAT), from the same club, during the in-season period. Thirty-nine healthy soccer players were involved (EAT [n = 20]; U-19 [n = 19]) in the study which spanned four weeks. Training load (TL) was monitored as external TL, using a global positioning system (GPS), and internal TL, using a rating of perceived exertion (RPE). TL data were recorded after each training session. During soccer matches, players' RPEs were recorded. The internal TL was quantified daily by means of the session rating of perceived exertion (session-RPE) using Borg's 0-10 scale. For GPS data, the selected running speed intensities (over 0.5 s time intervals) were 12-15.9 km/h; 16-19.9 km/h; 20-24.9 km/h; >25 km/h (sprint). Distances covered between 16 and 19.9 km/h, > 20 km/h and >25 km/h were significantly higher in U-19 compared to EAT over the course of the study (p = 0.023, d = 0.243, small; p = 0.016, d = 0.298, small; and p = 0.001, d = 0.564, small, respectively). EAT players performed significantly fewer sprints per week compared to U-19 players (p = 0.002, d = 0.526, small). RPE was significantly higher in U-19 compared to EAT (p = 0.001, d = 0.188, trivial). The external and internal measures of TL were significantly higher in the U-19 group compared to the EAT soccer players. In conclusion, the results obtained show that the training load is greater in U19 compared to EAT.
Collapse
Affiliation(s)
- Sullivan Coppalle
- Laboratoire Mouvement, Sport, Santé, University of Rennes, M2S—EA 1274, F-35000 Rennes, France;
- Stade Lavallois Mayenne Football Club, 53000 Laval, France;
| | - Guillaume Ravé
- Stade Lavallois Mayenne Football Club, 53000 Laval, France;
| | - Jason Moran
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester 62326, UK;
| | - Iyed Salhi
- ISSEP Ksar-Essaid, University of La Manouba, Tunis 2000, Tunisia; (I.S.); (A.B.A.); (S.Z.)
| | | | - Sghaeir Zouita
- ISSEP Ksar-Essaid, University of La Manouba, Tunis 2000, Tunisia; (I.S.); (A.B.A.); (S.Z.)
| | - Urs Granacher
- Division of Training and Movement Sciences, University of Potsdam, 14469 Potsdam, Germany
| | - Hassane Zouhal
- Laboratoire Mouvement, Sport, Santé, University of Rennes, M2S—EA 1274, F-35000 Rennes, France;
| |
Collapse
|
2
|
Coppalle S, Rave G, Ben Abderrahman A, Ali A, Salhi I, Zouita S, Zouita A, Brughelli M, Granacher U, Zouhal H. Relationship of Pre-season Training Load With In-Season Biochemical Markers, Injuries and Performance in Professional Soccer Players. Front Physiol 2019; 10:409. [PMID: 31031638 PMCID: PMC6474299 DOI: 10.3389/fphys.2019.00409] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 03/26/2019] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION There is controversy in the literature in regards of the link between training load and injury rate. Thus, the aims of this non-interventional study were to evaluate relationships between pre-season training load with biochemical markers, injury incidence and performance during the first month of the competitive period in professional soccer players. MATERIALS AND METHODS Healthy professional soccer players were enrolled in this study over two pre-season periods. Data sets were available from 26 players during the first season (2014-2015) and 24 players during the second season (2015-2016) who completed two pre-season periods (6 weeks each). External training load was assessed from all athletes during training using Global Positioning System (GPS). Internal training load was monitored after each training session using rate of perceived exertion (RPE). Before and after each pre-season, blood samples were taken to determine plasma lactate dehydrogenase (LDH), creatine kinase (CK) and C-reactive protein (CRP). Injury incidence and overall performance (ranking of the team after the first five official games of the championship) were recorded for both seasons separately. RESULTS There was no statistically significant difference in mean RPE values of the two-preparation periods (2737 ± 452 and 2629 ± 786 AU, p = 0.492). The correlational analysis did not reveal significant associations between internal and external training load (RPE and GPS data) and biological markers. There was a significant positive correlation between RPE and LDH during the 2015/2016 season (r = 0.974, p = 0.001). In addition, a significant negative correlation was found between total distance >20 km/h and CRP during the 2015-2016 season (r = -0.863, p = 0.027). The injury rates for the two seasons were 1.76 and 1.06 per 1000 h exposure for the 2014-2015 and 2015-2016 seasons, respectively (p = 0.127). CONCLUSION Our study showed that pre-season training load is not associated with overall team performance. This association is most likely multifactorial and other factors (e.g., technical and tactical level of the team, opponents, environment) may play an important role for the collective team performance. Our findings may help coaches to better prepare their athletes during pre-season.
Collapse
Affiliation(s)
- Sullivan Coppalle
- M2S (Movement, Sport and Health Sciences Laboratory), University of Rennes 2, Rennes, France
| | - Guillaume Rave
- Stade Lavallois Mayenne Football Club, Laval, France
- Department of Performance, Université d’Angers, Angers, France
| | | | - Ajmol Ali
- School of Sport, Exercise and Nutrition, Massey University, Auckland, New Zealand
| | - Iyed Salhi
- ISSEP Ksar Said, University of Manouba, Manouba, Tunisia
| | - Sghaier Zouita
- ISSEP Ksar Said, University of Manouba, Manouba, Tunisia
| | - Amira Zouita
- ISSEP Ksar Said, University of Manouba, Manouba, Tunisia
| | - Matt Brughelli
- Sports Performance Research Institute New Zealand, AUT Millennium, Auckland University of Technology, Auckland, New Zealand
| | - Urs Granacher
- Division of Training and Movement Sciences, University of Potsdam, Potsdam, Germany
| | - Hassane Zouhal
- M2S (Movement, Sport and Health Sciences Laboratory), University of Rennes 2, Rennes, France
| |
Collapse
|
3
|
Hammami MA, Ben Abderrahman A, Rhibi F, Nebigh A, Coppalle S, Ravé G, Tabka Z, Zouhal H. Somatotype Hormone Levels and Physical Fitness in Elite Young Soccer Players over a Two-Year Monitoring Period. J Sports Sci Med 2018; 17:455-464. [PMID: 30116119 PMCID: PMC6090385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
The effect of two soccer-training seasons on the growth, development and somatotype hormone concentrations of elite youth soccer players were evaluated. Eighteen elite soccer players and 18 age-matched non-athletic control subjects participated in the study. Anthropometric-measurements, aerobic and anaerobic performance tests and serum concentrations of insulin-like growth factor-1 (IGF-1), insulin-like growth factor binding protein-3 (IGFBP-3), and growth hormone (GH) were assessed at 5 time points across two competitive seasons. Soccer players revealed higher GH, IGF-1 and IGFBP-3 than the control group across all-time points. Significant moderate correlations were observed only in soccer players between hormonal concentrations (IGF-1 and IGFBP-3) and the jumping tests (r = 0.45-0.48; p < 0.01). Somatotropic axis hormones, anthropometric and physical parameters increased to a greater degree with growth and soccer training combined compared to growth alone. Results from this investigation revealed that intense training did not impair growth or development in these young soccer players across 2-year period.
Collapse
Affiliation(s)
- Mohammed A Hammami
- Univ Rennes, M2S (Laboratoire Mouvement, Sport, Santé), Rennes, France
- Laboratory of Physiology and Functional Explorations, Ibn Eljazzar Faculty of Medicine, University of Sousse, Tunisia
| | - Abderraouf Ben Abderrahman
- High Institute of Sports and Physical Education (ISSEP) Ksar Saïd, University of Manouba, Tunisia
- Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Fatma Rhibi
- Univ Rennes, M2S (Laboratoire Mouvement, Sport, Santé), Rennes, France
- Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Ammar Nebigh
- Laboratory of Physiology and Functional Explorations, Ibn Eljazzar Faculty of Medicine, University of Sousse, Tunisia
- High Institute of Sports and Physical Education (ISSEP) Ksar Saïd, University of Manouba, Tunisia
| | - Sullivan Coppalle
- Univ Rennes, M2S (Laboratoire Mouvement, Sport, Santé), Rennes, France
| | | | - Zouhair Tabka
- Laboratory of Physiology and Functional Explorations, Ibn Eljazzar Faculty of Medicine, University of Sousse, Tunisia
| | - Hassane Zouhal
- Univ Rennes, M2S (Laboratoire Mouvement, Sport, Santé), Rennes, France
| |
Collapse
|
4
|
Zouhal H, Abderrahman AB, Dupont G, Truptin P, Le Bris R, Le Postec E, Coppalle S, Ravé G, Brughelli M, Bideau B. Laterality Influences Agility Performance in Elite Soccer Players. Front Physiol 2018; 9:807. [PMID: 30008676 PMCID: PMC6033993 DOI: 10.3389/fphys.2018.00807] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 06/08/2018] [Indexed: 12/02/2022] Open
Abstract
Introduction: Laterality (i.e., handedness, footedness, and eyedness) could have an impact on highly repeated soccer movements and thus, could influence performance. The purpose of this study was to examine the laterality of high-level football players and its effects on 180° left and right U-turn movements. Materials and Methods: Handedness, footedness, and eyedness were determined in 72 elite football players (EFP, 18.2 ± 2.2 years) from the Stade Rennais Football Club (French League 1) and 9 amateur football players (AFP, 19.6 ± 2.1 years). Players performed a visual-motor task on a synthetic pitch consisting of 180° left and right rotations as fast as possible in response to a visual light on a computer screen. Movement times and reactive times for each left and right rotation were recorded with an accelerometer and video display. Results: Laterality profiles showed a majority (χ2 = 9.42, df = 2, p = 0.031) of crossed formulas (i.e., dominant leg or hand is controlateral to the dominant eye) for EFP (53 ± 7%) and a majority of non-crossed formulas for AFP (63 ± 9%). Reaction times were significantly faster (p = 0.028, effect size = 0.148, trivial) in EFP right-eyed (568.2 ± 55.5 ms) than in AFP (610.0 ± 43.9 ms). For the left rotation and for right-footed players, movement times were significantly different (p = 0.043, effect size = 0.413, small) between EFP (1.15 ± 0.07 s) and AFP (1.17 ± 0.07 s). A significant difference (p < 0.033) was observed between footedness and rotation movement times in the EFP. Conclusion: Our results showed that laterality profiles differed between EFP and AFP. Hence, in EFP, reaction times depended on the side of the visual stimulus. Moreover, leg laterality of EFP influenced 180° left or right rotation speed. Our results indicate the importance of determining laterality in soccer players and identifying deficits in performance when turning.
Collapse
Affiliation(s)
- Hassane Zouhal
- Movement Sport Science and Health Laboratory (M2S), UFR-STAPS, University of Rennes 2 - ENS-Rennes, Bruz, France
| | | | | | - Pablo Truptin
- Movement Sport Science and Health Laboratory (M2S), UFR-STAPS, University of Rennes 2 - ENS-Rennes, Bruz, France
| | - Régis Le Bris
- Fédération Française de Football (FFF), Paris, France.,Lorient Football Club (FCL) and Stade Rennais Football Club (SRFC), Lorient, France
| | - Erwan Le Postec
- Fédération Française de Football (FFF), Paris, France.,Lorient Football Club (FCL) and Stade Rennais Football Club (SRFC), Lorient, France
| | - Sullivan Coppalle
- Movement Sport Science and Health Laboratory (M2S), UFR-STAPS, University of Rennes 2 - ENS-Rennes, Bruz, France
| | | | - Matt Brughelli
- Stade Lavallois Mayenne Football Club, Laval, France.,Sports Performance Research Institute New Zealand (SPRINZ), AUT Millennium, Auckland University of Technology, Auckland, New Zealand
| | - Benoit Bideau
- Movement Sport Science and Health Laboratory (M2S), UFR-STAPS, University of Rennes 2 - ENS-Rennes, Bruz, France
| |
Collapse
|