Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine ( 2018 ) 17 , 455 - 464

Research article
Somatotype Hormone Levels and Physical Fitness in Elite Young Soccer Players over a Two-Year Monitoring Period
Mohammed A. Hammami1,2, Abderraouf Ben Abderrahman3,4, Fatma Rhibi1,4, Ammar Nebigh2,3, Sullivan Coppalle1, Guillaume Ravé5, Zouhair Tabka2, Hassane Zouhal1, 
Author Information
1 Univ Rennes, M2S (Laboratoire Mouvement, Sport, Santé), Rennes, France
2 Laboratory of Physiology and Functional Explorations, Ibn Eljazzar Faculty of Medicine, University of Sousse, Tunisia
3 High Institute of Sports and Physical Education (ISSEP) Ksar Saïd, University of Manouba, Tunisia
4 Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Tunisia
5 Stade Lavallois Mayenne Football Club,

Hassane Zouhal
✉ Univ Rennes, M2S (Laboratoire Mouvement, Sport, Santé) - EA 1274, F-35000 Rennes, France.
Email: hassane.zouhal@univ-rennes2.fr
Publish Date
Received: 17-07-2017
Accepted: 30-04-2018
Published (online): 14-08-2018
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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.

Key words: Football, Exercise, Training, Hormones, Growth hormone


           Key Points
  • The present study investigated the effect of two soccer-training seasons on the growth, development and somatotype hormone concentrations of elite youth soccer players.
  • Somatotropic axis hormones, anthropometric and physical parameters increased to a greater degree with growth and soccer training combined compared to growth alone.
  • The present investigation revealed that intense training did not impair growth or development in these young soccer players across 2-year period.
 
 
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