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The Journal of Sports Medicine and Physical Fitness 2021 Mar 05

DOI: 10.23736/S0022-4707.21.12020-1

Copyright © 2021 EDIZIONI MINERVA MEDICA

language: English

Genomic profile in association with sport-type, sex, ethnicity, psychological traits and sport injuries of elite athletes: review and future perspectives

Hugo-Henrique SILVA 1, 2, 3 , Maria-Raquel G. SILVA 4, 5, 6, 7, Fátima CERQUEIRA 4, 7, 8, Valéria TAVARES 1, 8, 11, Rui MEDEIROS 7, 8, 9, 10, 11

1 ICBAS-Institute of Biomedical Sciences of the University of Porto, Porto, Portugal; 2 União Desportiva Oliveirense, Senior Rink-Hockey Team, Oliveira de Azeméis, Portugal; 3 Portuguese Ministry of Education, Lisbon, Portugal; 4 Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal; 5 CIAS-Research Centre for Anthropology and Health - Human Biology, Health and Society, University of Coimbra, Coimbra, Portugal; 6 Comprehensive Health Research Centre-Group of Sleep, Chronobiology and Sleep Disorders-Nova Medical School, University of Lisbon, Lisbon, Portugal; 7 FP-ENAS Research Unit, UFP Energy, Environment and Health Research Unit, CEBIMED, Biomedical Research Centre, Fernando Pessoa University, Porto, Portugal; 8 Molecular Oncology & Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto, Porto, Portugal; 9 Virology Service, Portuguese Oncology Institute of Porto, Porto, Portugal; 10 LPCC, Research Department - Portuguese League Against Cancer (LPPC - NRN), Porto, Portugal; 11 FMUP- Faculty of Medicine of the University of Porto, Porto, Portugal


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In the last few years, some inherited determinants have been associated with elite athletic performance, but its polygenic trait character has limited the correct definition of elite athlete’s genomic profile. This qualitative descriptive study aims to summarise the current understanding about genetic and epigenetic factors in elite athletes, as well as their genomic profile in association with sport-type, sex, ethnicity, psychological traits and sport injuries. A narrative review of the literature across a broad cross-section of the elite athletes’ genomic profile was undertaken. Elite performance relies on rare gene variants within a great interface between molecular, cellular and behavioural sport-related phenotypes and the environment, which is still poorly understood. ACTN3 rs1815739 and ACE I/D polymorphisms appear to be associated to specific sprint phenotypes and influence the athletic status, i.e., the rs1815739 variant is more influential to 200-m performance and the ACE ID polymorphism is more involved in the longer, 400-m sprint performance. Generally, athletes show endurance-based sports characteristics or power-based sports characteristics, but some studies have reported some genes associations to both sports-based characteristics. Furthermore, genetic studies with larger cohorts of single-sport athletes might be preferable than studies combining athletes of different sports, given the existence of distinct athlete profiles and sport demands. Athletic performance may be influenced by the serotonergic pathway and the potential injury risk (namely stress fracture) might be associated to a genetic predisposition associated to the mechanical loading from the intense physical exercise. The study of gene variants associated to sex and ethnicity-related to athletic performance needs further investigation. The combination of genome-wide association studies addressing the genetic architecture of athletes and the subsequent replication and validation studies might for additional genetic data is mandatory.


KEY WORDS: Elite athlete; Gene; Genetics; Epigenetics; Sport

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