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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
Rivista di Medicina, Traumatologia e Psicologia dello Sport
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES SPORTS INJURIES AND REHABILITATION
The Journal of Sports Medicine and Physical Fitness 2012 Dicembre;52(6):631-8
Injury risk in professional football players with special reference to the playing position and training periodization
Mallo J. 1, Dellal A. 2, 3, 4 ✉
1 Sports Department, Faculty of Physical Activity and Sport. Technical University of Madrid, Madrid, Spain;
2 Fitness Training Department, OGC Nice, Nice, France;
3 Santy Orthopedicae Clinical, Sport Science and Research Department, Lyon, France;
4 Tunisian Research Laboratory “Sport Performance Optimisation”, National Centre of Medicine and Science in Sport (CNMSS), El Menzah, Tunisia
AIM: The aim of this study was to examine injury incidence in professional football players according to the playing positions and with a special reference to training periodization.
METHODS: A Spanish professional team was followed prospectively for the 2007-08 and 2008-09 seasons and exposure times and time-loss injuries were individually recorded during all training sessions and matches. Heart rate was monitored in all training sessions.
RESULTS: total of 114 injuries were registered during the study period (mean injury incidence: 6.6 injuries per 1000 hours). The frequency of injuries was not uniformly distributed by playing positions (P<0.001), as forwards and central defenders sustained the greatest number of injury episodes and the highest match absence. Ligament sprains and muscle strains accounted for 50% of all injuries and 62% of all match absences. The highest incidence of sprains was achieved during pre-season and the beginning of the competition period. The risk to sustain a muscular strain peaked at the beginning and in the final weeks of the competition period and was related (r=0.72; P<0.05) to mean heart rate during the training stage.
CONCLUSION: The results suggest that there exists a difference of injury risk according to the period of the season and therefore, injury prevention strategies should be introduced from pre-season. Moreover, training workloads should be controlled to avoid increasing the risk of muscle strains.