Evidence map›Paper›PMID 28356856›Full record

ArticleJournal of medical biochemistry2015

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

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

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Article in Journal of medical biochemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Marija AnđelkovićSports Medicine Association of Serbia, Belgrade, Serbia.
Ivana BaralićSports Medicine Association of Serbia, Belgrade, Serbia; Zvezdara University Medical Center, Belgrade, Serbia.
Brižita ĐorđevićInstitute of Bromatology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia.
Jelena Kotur StevuljevićInstitute of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia.
Nenad RadivojevićZvezdara University Medical Center, Belgrade, Serbia.
Nenad DikićZvezdara University Medical Center, Belgrade, Serbia.
Sanja Radojević ŠkodrićInstitute of Pathology, School of Medicine, University of Belgrade, Belgrade, Serbia.
Mirjana StojkovićClinic of Gastroenterology, Clinical Center of Serbia, Belgrade, Serbia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe 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.

methodsNineteen 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.

resultsHemoglobin 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.

conclusionsElite 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.

Indexed as

biochemistryhematologysoccer

Identifiers

PMID28356856
PMCPMC4922354

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.