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The efficacy of a self-paced VO2max test during motorized treadmill exercise

Faulkner, James, Mauger, Alexis R., Woolley, Brandon, Lambrick, Danielle (2015) The efficacy of a self-paced VO2max test during motorized treadmill exercise. International Journal of Sports Physiology and Performance, 10 (1). pp. 99-105. ISSN 1555-0265. (doi:10.1123/ijspp.2014-0052) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:61028)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1123/ijspp.2014-0052

Abstract

PURPOSE

To assess the utility of a self-paced maximal oxygen uptake (VO2max) test (SPV) in eliciting an accurate measure of VO2max in comparison with a traditional graded exercise test (GXT) during motorized treadmill exercise.

DESIGN

This was a cross-sectional experimental study whereby recreationally trained men (n = 13, 25.5 ± 4.6 y) completed 2 maximal exercise tests (SPV, GXT) separated by a 72-h recovery period.

METHODS

The GXT was continuous and incremental, with prescribed 1-km/h increases every 2 min until the attainment of VO2max. The SPV consisted of 5 × 2-min stages of incremental exercise, which were self-selected and adjusted according to 5 prescribed RPE levels (RPE 11, 13, 15, 17, and 20).

RESULTS

Although no significant differences in VO2max were observed between the SPV and GXT (63.9 ± 3.3 cf 60.9 ± 4.6 mL · kg-1 · min-1, respectively, P > .05), the apparent 4.7% mean difference may be practically important. The 95% limits-of-agreement analysis was 3.03 ± 11.49 mL · kg-1 · min-1. Therefore, in the worst-case scenario, the GXT may underestimate measured VO2max as ascertained by the SPV by up to 19%. Conversely, the SPV could underestimate the GXT by 14%.

CONCLUSIONS

The current study has shown that the SPV is an accurate measure of VO2max during exercise on a motorized treadmill and may provide a slightly higher VO2max value than that obtained from a traditional GXT. The higher VO2max during the SPV may be important when prescribing training or monitoring athlete progression.

Item Type: Article
DOI/Identification number: 10.1123/ijspp.2014-0052
Divisions: Divisions > Division of Natural Sciences > School of Sport and Exercise Sciences
Depositing User: Lex Mauger
Date Deposited: 24 Mar 2017 14:48 UTC
Last Modified: 16 Feb 2021 13:44 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/61028 (The current URI for this page, for reference purposes)
Mauger, Alexis R.: https://orcid.org/0000-0001-6685-5800
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