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Anđelković M, Baralić I, Đorđević B, et al. Hematological and Biochemical Parameters in Elite Soccer Players During A Competitive Half Season. J Med Biochem. 2015;34(4):460-466doi: 10.2478/jomb-2014-0057.
Anđelković, M., Baralić, I., Đorđević, B., Stevuljević, J. K., Radivojević, N., Dikić, N., Škodrić, S. R., & Stojković, M. (2015). Hematological and Biochemical Parameters in Elite Soccer Players During A Competitive Half Season. Journal of medical biochemistry, 34(4), 460-466. https://doi.org/10.2478/jomb-2014-0057
Anđelković, Marija, et al. "Hematological and Biochemical Parameters in Elite Soccer Players During A Competitive Half Season." Journal of medical biochemistry vol. 34,4 (2015): 460-466. doi: https://doi.org/10.2478/jomb-2014-0057
Anđelković M, Baralić I, Đorđević B, Stevuljević JK, Radivojević N, Dikić N, Škodrić SR, Stojković M. Hematological and Biochemical Parameters in Elite Soccer Players During A Competitive Half Season. J Med Biochem. 2015 Oct;34(4):460-466. doi: 10.2478/jomb-2014-0057. Epub 2015 Sep 19. PMID: 28356856; PMCID: PMC4922354.
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J Med Biochem. 2015 Oct;34(4):460-466. doi: 10.2478/jomb-2014-0057. Epub 2015 Sep 19.

Hematological and Biochemical Parameters in Elite Soccer Players During A Competitive Half Season.

Journal of medical biochemistry

Marija Anđelković, Ivana Baralić, Brižita Đorđević, Jelena Kotur Stevuljević, Nenad Radivojević, Nenad Dikić, Sanja Radojević Škodrić, Mirjana Stojković

Affiliations

  1. Sports Medicine Association of Serbia, Belgrade, Serbia.
  2. Sports Medicine Association of Serbia, Belgrade, Serbia; Zvezdara University Medical Center, Belgrade, Serbia.
  3. Institute of Bromatology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia.
  4. Institute of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia.
  5. Zvezdara University Medical Center, Belgrade, Serbia.
  6. Institute of Pathology, School of Medicine, University of Belgrade, Belgrade, Serbia.
  7. Clinic of Gastroenterology, Clinical Center of Serbia, Belgrade, Serbia.

PMID: 28356856 PMCID: PMC4922354 DOI: 10.2478/jomb-2014-0057

Abstract

BACKGROUND: The purpose of the present study was to report and discuss the hematological and biochemical behavior of elite soccer players, in order to get more insight in the physiological characteristics of these sportsmen and to provide trainers and sports doctors with useful indicators.

METHODS: Nineteen male soccer players volunteered to participate in this study. We followed the young elite soccer players during a competitive half season. Venous blood samples were collected between 9:00 and 10:00 a.m. after an overnight fast (10 h) at baseline, after 45 and 90 days and hematological and biochemical parameters were measured.

RESULTS: Hemoglobin and hematocrit levels were significantly reduced over the observational period (p<0.05), but erythrocyte count and iron levels remained unchanged. Bilirubin and ferritin levels significantly increased in response to regular soccer training (p<0.05). We observed a significant decrease in muscle enzyme plasma activity during the 90 days study period. ANOVA analysis revealed a significant increase in the leukocyte and neutrophil counts (p<0.05), in parallel with a significant decrease in the lymphocyte count (p<0.05) after the observational period of 90 days.

CONCLUSIONS: Elite soccer players are characterized by significant changes in biochemical and hematological parameters over the half season, which are linked to training workload, as well as adaptation induced by the soccer training. Although the values of the measured parameters fell within the reference range, regular monitoring of the biochemical and hematological parameters is fundamental for the identification of a healthy status and related optimal performances by sport doctors and trainers and selection of a correct workload by trainers.

Keywords: biochemistry; hematology; soccer

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