Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/104857
DC Field | Value | Language |
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dc.contributor.author | Clemente, Filipe Manuel | - |
dc.contributor.author | González-Fernández, Francisco Tomás | - |
dc.contributor.author | Ceylan, Halil Ibrahim | - |
dc.contributor.author | Silva, Rui | - |
dc.contributor.author | Younesi, Saeid | - |
dc.contributor.author | Chen, Yung-Sheng | - |
dc.contributor.author | Badicu, Georgian | - |
dc.contributor.author | Wolański, Paweł | - |
dc.contributor.author | Murawska-Ciałowicz, Eugenia | - |
dc.date.accessioned | 2023-01-26T10:37:29Z | - |
dc.date.available | 2023-01-26T10:37:29Z | - |
dc.date.issued | 2021-11-27 | - |
dc.identifier.issn | 2077-0383 | - |
dc.identifier.uri | https://hdl.handle.net/10316/104857 | - |
dc.description.abstract | Background: Pre-season training in soccer can induce changes in biological markers in the circulation. However, relationships between chosen hematological and biochemical blood parameters and training load have not been measured. Objective: Analyze the blood measures changes and their relationships with training loads changes after pre-season training. Methodology: Twenty-five professional soccer players were assessed by training load measures (derived from rate of perceived exertion- known as RPE) during the pre-season period. Additionally, blood samples were collected for hematological and biochemical analyses. Results: For hematological parameters, significant increases were found for platelets (PLT) (dif: 6.42; p = 0.006; d = -0.36), while significant decreases were found for absolute neutrophils count (ANC) (dif: -3.98; p = 0.006; d = 0.11), and absolute monocytes count (AMC) (dif: -16.98; p = 0.001; d = 0.78) after the pre-season period. For biochemical parameters, there were significant increases in creatinine (dif: 5.15; p = 0.001; d = -0.46), alkaline phosphatase (ALP) (dif: 12.55; p = 0.001; d = -0.84), C-reactive protein (CRP) (dif: 15.15; p = 0.001; d = -0.67), cortisol (dif: 2.85; p = 0.001; d = -0.28), and testosterone (dif: 5.38; p = 0.001; d = -0.52), whereas there were significant decreases in calcium (dif: -1.31; p = 0.007; d =0.49) and calcium corrected (dif: -2.18; p = 0.015; d = 0.82) after the pre-season period. Moreover, the Hooper Index (dif: 13.22; p = 0.01; d = 0.78), and all derived RPE measures increased after pre-season period. Moderate-to-very large positive and negative correlations (r range: 0.50-0.73) were found between the training load and hematological measures percentage of changes. Moderate-to-large positive and negative correlations (r range: 0.50-0.60) were found between training load and biochemical measures percentage of changes. Conclusions: The results indicated heavy physical loads during the pre-season, leading to a decrease in immune functions. Given the significant relationships between blood and training load measures, monitoring hematological and biochemical measures allow coaches to minimize injury risk, overreaching, and overtraining. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | UIDB/50008/2020 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | soccer | pt |
dc.subject | performance | pt |
dc.subject | biology | pt |
dc.subject | workload | pt |
dc.title | Blood Biomarkers Variations across the Pre-Season and Interactions with Training Load: A Study in Professional Soccer Players | pt |
dc.type | article | pt |
degois.publication.firstPage | 5576 | pt |
degois.publication.issue | 23 | pt |
degois.publication.title | Journal of Clinical Medicine | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/jcm10235576 | - |
degois.publication.volume | 10 | pt |
dc.date.embargo | 2021-11-27 | * |
dc.identifier.pmid | 34884288 | - |
uc.date.periodoEmbargo | 0 | pt |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.openairetype | article | - |
item.languageiso639-1 | en | - |
item.fulltext | Com Texto completo | - |
item.cerifentitytype | Publications | - |
crisitem.project.grantno | Instituto de Telecomunicações | - |
crisitem.author.orcid | 0000-0003-3062-0916 | - |
Appears in Collections: | I&D CIDAF - Artigos em Revistas Internacionais |
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Blood-biomarkers-variations-across-the-preseason-and-interactions-with-training-load-A-study-in-professional-soccer-playersJournal-of-Clinical-Medicine.pdf | 696.23 kB | Adobe PDF | View/Open |
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