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Relationships between heart rate target determined in different exercise testing in COPD patients to prescribed with individualized exercise training

Authors Fabre C, Chehere B, Bart F, Mucci P, Wallaert B, Grosbois JM

Received 10 December 2016

Accepted for publication 7 February 2017

Published 16 May 2017 Volume 2017:12 Pages 1483—1489

DOI https://doi.org/10.2147/COPD.S129889

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Professor Hsiao-Chi Chuang

Peer reviewer comments 2

Editor who approved publication: Dr Richard Russell

Claudine Fabre,1 Baptiste Chehere,1 Frédéric Bart,2 Patrick Mucci,1 Benoit Wallaert,3 Jean Marie Grosbois2,4

1University of Lille, EA-7369 – URePSSS, Unité de Recherche Pluridisciplinaire Sport, Santé, Société, Faculté des Sciences du Sport et de l’EP, Ronchin, 2Centre Hospitalier Béthune, Service de Pneumologie et d’Allergologie, Rue Delbecque, Beuvry, 3CHRU Lille – Service de Pneumologie et Immunoallergologie, Centre des Compétences des Maladies Pulmonaires Rares, Hôpital Calmette, CHRU Lille and Hospital Center Regional University De Lille, Lille, 4FormAction Santé, ZA du Bois, Pérenchies, France

Background: It has been scientifically proven that pulmonary rehabilitation improves exercise tolerance and facilitates the carrying out of daily physical activities. To optimize the physical and physiological benefits, it is necessary to individualize the training intensity for each patient. The aim of this study is to compare the heart rate (HR) responses to three exercise modalities measuring aerobic fitness in chronic obstructive pulmonary disease patients, in order to easily prescribe individual target HRs for endurance training.
Patients and method: Fifty COPD patients (mean age: 60.1±8.5 years) were included in the study. Each patient carried out a cardiopulmonary exercise test, a 6-minute walk test (6MWT) and a 6-minute stepper test (6MST). During these tests, HR was recorded continuously. After the cardiopulmonary exercise test, the HR was noted at the ventilatory threshold (VT) and at the end of the two exercise field tests (6MWTpeak and 6MSTpeak). The values of the HR during the last 3 minutes of both field tests were averaged (6MWT456 and 6MST456). Finally, the HR at 60% of the HR reserve was calculated with the values of the HR measured during 6MWT and 6MST (HRr60%walk, HRr60%step).
Results: The HRs measured during the 6MST were significantly higher than those measured during the 6MWT. The HRr60%step was not significantly different from 6MWT456 and 6MWTpeak HR (P=0.51; P=0.48). A significant correlation was observed between 6MWT456 and 6MWTpeak (r=0.58). The 6MWT456 and 6MWTpeak HR were correlated with HRr60%step (r=0.68 and r=0.62). The VT could be determined in 28 patients. The HRVT was not different from 6MWT456, 6MWTpeak, and HRr60%step (P=0.57, P=0.41 and P=0.88) and was correlated to 6MWT456, 6MWTpeak, and HRr60%step (r=0.45, r=0.40, r=0.48).
Conclusion: An individualized target HR for endurance training can be prescribed from the HR measured during routine tests, such as 6MWT or 6MST.

Keywords: cardiopulmonary exercise testing, chronic obstructive pulmonary disease, 6-minute walk test, 6-minute stepper test, endurance training

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