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The association between the acute: chronic workload ratio and injury and its application in team sports: a systematic review

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Show simple item record Griffin, Alan Kenny, Ian C. Comyns, Thomas M. Lyons, Mark 2020-02-14T08:46:55Z 2019
dc.identifier.issn 0112-1642
dc.description peer-reviewed en_US
dc.description.abstract There has been a recent increase in research examining training load as a method of mitigating injury risk due to its known detrimental effects on player welfare and team performance. The acute:chronic workload ratio (ACWR) takes into account the current training load (acute) and the training load that an athlete has been prepared for (chronic). The ACWR can be calculated using; (1) the rolling average model (RA) and (2) the exponentially weighted moving average model (EWMA). Objective: The primary aim of this systematic review was to investigate the literature examining the association between the occurrence of injury and the ACWR and to investigate if sufficient evidence exists to determine the best method of application of the ACWR in team sports. Methods: Studies were identified through a comprehensive search of the following databases: EMBASE, Medline, SPORTDiscus, SCOPUS, AMED and CINAHL. Extensive data extraction was performed. The methodological quality of the included studies was assessed according to the Newcastleâ Ottawa Scale (NOS) for Cohort Studies. Results: A total of 22 articles met the inclusion criteria. The assessment of article quality had an overall median NOS score of 8 (range 5â 9). The findings of this review support the association between the ACWR and non-contact injuries and its use as a valuable tool for monitoring training load as part of a larger scale multifaceted monitoring system that includes other proven methods. There is support for both models, but the EWMA is the more suitable measure, in part due to its greater sensitivity. The most appropriate acute and chronic time periods, and training load variables, may be dependent on the specific sport and its structure. Conclusions: For practitioners, it is the important to understand the intricacies of the ACWR before deciding the best method of calculation. Future research needs to focus on the more sensitive EWMA model, for both sexes, across a larger range of sports and time frames and also combinations with other injury risk factors. en_US
dc.language.iso eng en_US
dc.publisher Springer en_US
dc.relation.ispartofseries Sports Medicine;50, pp. 561-580
dc.rights The original publication is available at en_US
dc.subject training load en_US
dc.subject athlete en_US
dc.subject injury en_US
dc.title The association between the acute: chronic workload ratio and injury and its application in team sports: a systematic review en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2020-02-11T12:50:35Z
dc.description.version ACCEPTED
dc.identifier.doi 10.1007/s40279-019-01218-2 2020-11-05
dc.embargo.terms 2020-11-05 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2934508
dc.internal.copyrightchecked Yes
dc.contributor.funder IRC
dc.identifier.journaltitle Sports Medicine
dc.description.status peer-reviewed

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