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Ratings of perceived exertion at the ventilatory anaerobic threshold in people with coronary heart disease: A CARE CR study

Nichols, Simon; Engin, Buket; Carroll, Sean; Buckley, John; Ingle, Lee

Authors

Simon Nichols

Buket Engin

John Buckley



Abstract

Background: Exercise prescription guidelines for individuals undergoing cardiovascular rehabilitation (CR) are often based on heart rate training zones and rating of perceived exertion (RPE). United Kingdom guidelines indicate that patients should exercise at an intensity of RPE 11 to 14. Objectives: We aimed to determine the accuracy of this approach by comparing this RPE range with an objectively measured marker of exercise intensity, the ventilatory anaerobic threshold (VAT), and examine whether baseline directly determined cardiorespiratory fitness (CRF) affects the association between VAT and RPE. Methods: Participants underwent a maximal cardiopulmonary exercise test before an 8-week community-based CR programme. Peak oxygen uptake (V̇O2peak) and VAT were recorded, and RPE at the workload at which VAT was identified was recorded. Data were then split into tertiles, based on VO2peak, to determine whether RPE at the VAT differed in participants with low, moderate or higher CRF. Results: We included 70 individuals [mean (SD) age 63.1 (10.0) years; body mass index 29.4 (4.0) kg/m2; 86% male]. At baseline, the mean RPE at the VAT (RPE@VAT) was 11.8 (95% confidence interval 11.0–12.6) and significantly differed between low and high CRF groups (P < 0.001). The mean RPE@VAT was 10.1 (8.7–11.5), 11.8 (10.5–13.0), and 13.7 (12.5–14.9) for low, moderate and high CRF groups, respectively. Conclusions: When using RPE to guide exercise intensity in CR populations, one must consider the effect of baseline CRF. Mean RPEs of ∼10, 12 and 14 correspond to the VAT in low, moderate and higher-fit patients, respectively.

Citation

Nichols, S., Engin, B., Carroll, S., Buckley, J., & Ingle, L. (2021). Ratings of perceived exertion at the ventilatory anaerobic threshold in people with coronary heart disease: A CARE CR study. Annals of physical and rehabilitation medicine, 64(6), Article 101462. https://doi.org/10.1016/j.rehab.2020.101462

Journal Article Type Article
Acceptance Date Nov 18, 2020
Online Publication Date Oct 26, 2021
Publication Date 2021-11
Deposit Date Apr 1, 2022
Publicly Available Date Oct 27, 2022
Journal Annals of Physical and Rehabilitation Medicine
Print ISSN 1877-0657
Electronic ISSN 1877-0665
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 64
Issue 6
Article Number 101462
DOI https://doi.org/10.1016/j.rehab.2020.101462
Keywords Cardiac rehabilitation; Exercise prescription; Cardiorespiratory fitness; Ventilatory anaerobic threshold; RPE
Public URL https://hull-repository.worktribe.com/output/3868356
Related Public URLs http://shura.shu.ac.uk/27668/

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Copyright Statement
© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/





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