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European Journal of Applied Physiology

, Volume 114, Issue 1, pp 11–20 | Cite as

A comparison of methods for quantifying training load: relationships between modelled and actual training responses

  • L. K. Wallace
  • K. M. Slattery
  • Aaron J. CouttsEmail author
Original Article

Abstract

Purpose

To assess the validity of methods for quantifying training load, fitness and fatigue in endurance athletes using a mathematical model.

Methods

Seven trained runners (\(\dot{V}\)O2max: 51.7 ± 4.5 mL kg−1 min−1, age: 38.6 ± 9.4 years, mean ± SD) completed 15 weeks of endurance running training. Training sessions were assessed using a heart rate (HR), running pace and rating of perceived exertion (RPE). Training dose was calculated using the session-RPE method, Banisters TRIMP and the running training stress score (rTSS). Weekly running performance (1,500-m time trial), fitness (submaximal HR, resting HR) and fatigue [profile of mood states, heart rate variability (HRV)] were measured. A mathematical model was applied to the training data from each runner to provide individual estimates of performance, fitness and fatigue. Correlations assessed the relationships between the modelled and actual weekly performance, fitness and fatigue measures within each runner.

Results

Training resulted in 5.4 ± 2.6 % improvement in 1,500-m performance. Modelled performance was correlated with actual performance in each subject, with relationships being r = 0.70 ± 0.11, 0.60 ± 0.10 and 0.65 ± 0.13 for the rTSS, session-RPE and TRIMP input methods, respectively. There were moderate correlations between modelled and actual fitness (submaximal HR) for the session-RPE (−0.43 ± 0.37) and TRIMP (−0.48 ± 0.39) methods and moderate-to-large correlations between modelled and actual fatigue measured through HRV indices for both session-RPE (−0.48 ± 0.39) and TRIMP (−0.59 ± 0.31) methods.

Conclusions

These findings showed that each of the training load methods investigated are appropriate for quantifying endurance training dose and that submaximal HR and HRV may be useful for monitoring fitness and fatigue, respectively.

Keywords

Training dose Fitness Fatigue Performance 

Notes

Acknowledgments

The authors would like to thank Dr. Chris Barnes from the Australian Institute of Sport for his expertise in developing the customised modelling spreadsheets used in this study.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • L. K. Wallace
    • 1
  • K. M. Slattery
    • 1
  • Aaron J. Coutts
    • 1
    Email author
  1. 1.Sport and Exercise Discipline GroupUTS: Health, University of Technology, Sydney (UTS)LindfieldAustralia

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