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The dose-response relationship between training load and aerobic fitness in academy rugby union players

Taylor, Richard J.; Sanders, Dajo; Myers, Tony; Abt, Grant; Taylor, Celia A.; Akubat, Ibrahim

Authors

Richard J. Taylor

Dajo Sanders

Tony Myers

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Dr Grant Abt G.Abt@hull.ac.uk
Reader (Associate Professor) of Sport and Exercise Physiology, Department for Sport, Health and Exercise Science

Celia A. Taylor

Ibrahim Akubat



Abstract

© 2018 Human Kinetics, Inc. Purpose: To identify the dose-response relationship between measures of training load (TL) and changes in aerobic fitness in academy rugby union players. Method: Training data from 10 academy rugby union players were collected during a 6-wk in-season period. Participants completed a lactate-threshold test that was used to assess VO 2 max, velocity at VO 2 max, velocity at 2 mmol/L (lactate threshold), and velocity at 4 mmol/L (onset of lactate accumulation; vOBLA) as measures of aerobic fitness. Internal-TL measures calculated were Banister training impulse (bTRIMP), Edwards TRIMP, Lucia TRIMP, individualized TRIMP (iTRIMP), and session RPE (sRPE). External-TL measures calculated were total distance, PlayerLoad™, high-speed distance > 15 km/h, very-high-speed distance > 18 km/h, and individualized high-speed distance based on each player’s vOBLA. Results: A second-order-regression (quadratic) analysis found that bTRIMP (R 2 = .78, P = .005) explained 78% of the variance and iTRIMP (R 2 = .55, P = .063) explained 55% of the variance in changes in VO 2 max. All other HR-based internal-TL measures and sRPE explained less than 40% of variance with fitness changes. External TL explained less than 42% of variance with fitness changes. Conclusions: In rugby players, bTRIMP and iTRIMP display a curvilinear dose-response relationship with changes in maximal aerobic fitness.

Citation

Taylor, R. J., Sanders, D., Myers, T., Abt, G., Taylor, C. A., & Akubat, I. (2018). The dose-response relationship between training load and aerobic fitness in academy rugby union players. International journal of sports physiology and performance : IJSPP, 13(2), 163-169. https://doi.org/10.1123/ijspp.2017-0121

Acceptance Date May 4, 2017
Online Publication Date Feb 13, 2018
Publication Date Feb 1, 2018
Deposit Date May 30, 2017
Publicly Available Date Feb 1, 2018
Journal International journal of sports physiology and performance
Print ISSN 1555-0265
Electronic ISSN 1555-0273
Publisher Human Kinetics
Peer Reviewed Peer Reviewed
Volume 13
Issue 2
Pages 163-169
DOI https://doi.org/10.1123/ijspp.2017-0121
Keywords Training impulse; GPS; Training load,; Blood lactate; Heart rate
Public URL https://hull-repository.worktribe.com/output/451758
Publisher URL http://journals.humankinetics.com/doi/10.1123/ijspp.2017-0121
Copyright Statement ©2017 University of Hull - Accepted author manuscript version reprinted, by permission, from International journal of sports physiology and performance, 2017, http://dx.doi.org/10.1123/ijspp.2017-0121]. © Human Kinetics, Inc.
Additional Information Accepted author manuscript version reprinted, by permission, from International journal of sports physiology and performance, 2017, http://dx.doi.org/10.1123/ijspp.2017-0121]. © Human Kinetics, Inc.

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Copyright Statement
©2017 University of Hull - Accepted author manuscript version reprinted, by permission, from International journal of sports physiology and performance, 2017, http://dx.doi.org/10.1123/ijspp.2017-0121]. © Human Kinetics, Inc.





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