Association between internal training load and muscle injuries in Brazilian professional soccer players.

Content Provider	Europe PMC
Author	Mohr, Pedro A Matias, Thiago S de Lucas, Ricardo D
Copyright Year	2023
Abstract	The training load is associated with injury risk in a variety of sports. This study aimed to evaluate the association between the internal training load and injury risk in Brazilian professional soccer players. The data were collected from 32 soccer players across two full seasons (2017 and 2018). The rating of perceived exertion (RPE) for every training/match session was used as an internal load variable. The cumulative training load from 3 and 4 weeks (C3 and C4) and the acute:chronic workload ratio (ACWR) were calculated. A generalized estimating equation analysis was applied to examine associations of non-contact muscle injuries with C3, C4 and ACWR. A total of 33 injuries were recorded across the two full seasons. A significant association was found between cumulative training load for three (C3, p = 0.003) and four weeks (C4, p = 0.023) and the occurrence of injuries. Players in the “high load” group presented greater injury risk in relation to the “moderate load” group (C4: OR = 4.5; IC 95% 1.5–13.3; C3: OR = 3.7; IC 95% 1.7–8.1). There was no association between ACWR and injury occurrence. The athletes exposed to a high cumulative load in a period of 3 to 4 weeks presented higher injury risk in comparison to those who had moderate cumulative training loads. Besides that, there was no association between ACWR and injury occurrence.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC10286624&blobtype=pdf
ISSN	0860021X
Journal	Biology of Sport [Biol Sport]
Volume Number	40
DOI	10.5114/biolsport.2023.119285
PubMed Central reference number	PMC10286624
Issue Number	3
PubMed reference number	37398960
e-ISSN	20831862
Language	English
Publisher	Institute of Sport in Warsaw
Publisher Date	2022-09-15
Access Restriction	Open
Rights License	This is an Open Access article distributed under the terms of the Creative Commons Attribution Share Alike 4.0 License, allowing third parties to copy and redistribute the material in any medium or format and remix, transform, and build upon the material for any purpose, even commercially, provided the original work is properly cited and states its license. Copyright © Biology of Sport 2023
Subject Keyword	Training load Soccer Rating of perceived exertion Risk factor
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Physical Therapy, Sports Therapy and Rehabilitation Sports Science