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The relative contribution of training intensity and duration to daily measures of training load in professional rugby league and union

Weaving, Dan; Dalton-Barron, Nicholas; McLaren, Shaun; Scantlebury, Sean; Cummins, Cloe; Roe, Gregory; Jones, Ben; Beggs, Clive; Abt, Grant

Authors

Dan Weaving

Nicholas Dalton-Barron

Shaun McLaren

Sean Scantlebury

Cloe Cummins

Gregory Roe

Ben Jones

Clive Beggs

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Dr Grant Abt G.Abt@hull.ac.uk
Reader in Sport and Exercise Physiology and Head of Department for Sport, Health and Exercise Science



Abstract

This study examined the relative contribution of exercise duration and intensity to team-sport athlete’s training load. Male, professional rugby league (n = 10) and union (n = 22) players were monitored over 6- and 52-week training periods, respectively. Whole-session (load) and per-minute (intensity) metrics were monitored (league: session rating of perceived exertion training load [sRPE-TL], individualised training impulse, total distance, BodyLoadTM; union: sRPE-TL, total distance, high- speed running distance, PlayerLoadTM). Separate principal component analyses were conducted on the load and intensity measures to consolidate raw data into principal components (PC, k = 4). The first load PC captured 70% and 74% of the total variance in the rugby league and rugby union datasets, respectively.. Multiple linear regression subsequently revealed that session duration explained 73% and 57% of the variance in first load PC, respectively, while the four intensity PCs explained an additional 24% and 34%, respectively. Across two professional rugby training programmes, the majority of the variability in training load measures was explained by session duration (~60–70%), while a smaller proportion was explained by session intensity (~30%). When modelling the training load, training intensity and duration should be disaggregated to better account for their between-session variability.

Journal Article Type Article
Journal Journal of sports sciences
Print ISSN 0264-0414
Electronic ISSN 1466-447X
Publisher Taylor & Francis
Peer Reviewed Peer Reviewed
Pages 1-8
APA6 Citation Weaving, D., Dalton-Barron, N., McLaren, S., Scantlebury, S., Cummins, C., Roe, G., …Abt, G. (in press). The relative contribution of training intensity and duration to daily measures of training load in professional rugby league and union. Journal of sports sciences, 1-8. https://doi.org/10.1080/02640414.2020.1754725
DOI https://doi.org/10.1080/02640414.2020.1754725
Keywords Training load; Principal component analysis; Time series; Rugby
Publisher URL https://www.tandfonline.com/doi/abs/10.1080/02640414.2020.1754725?journalCode=rjsp20
Additional Information Peer Review Statement: The publishing and review policy for this title is described in its Aims & Scope.; Aim & Scope: http://www.tandfonline....ope&journalCode=rjsp20; Accepted: 2020-03-23; Published: 2020-04-21
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