Evolution of automatic and controlled motivation toward physical activity and sedentary behaviors during pulmonary rehabilitation - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2016

Evolution of automatic and controlled motivation toward physical activity and sedentary behaviors during pulmonary rehabilitation

Résumé

To determine and/or adjust exercise training intensity for patients when the cardiopulmonary exercise test is not accessible, the determination of dyspnoea threshold (defined as the onset of self-perceived breathing discomfort) during the 6-min walk test (6MWT) could be a good alternative. The aim of this study was to evaluate the feasibility and reproducibility of self-perceived dyspnoea threshold and to determine whether a useful equation to estimate ventilatory threshold from self-perceived dyspnoea threshold could be derived. A total of 82 patients were included and performed two 6MWTs, during which they raised a hand to signal self-perceived dyspnoea threshold. The reproducibility in terms of heart rate (HR) was analysed. On a subsample of patients (n=27), a stepwise regression analysis was carried out to obtain a predictive equation of HR at ventilatory threshold measured during a cardiopulmonary exercise test estimated from HR at self-perceived dyspnoea threshold, age and forced expiratory volume in 1 s. Overall, 80% of patients could identify self-perceived dyspnoea threshold during the 6MWT. Self-perceived dyspnoea threshold was reproducibly expressed in HR (coefficient of variation=2.8%). A stepwise regression analysis enabled estimation of HR at ventilatory threshold from HR at self-perceived dyspnoea threshold, age and forced expiratory volume in 1 s (adjusted r=0.79, r=0.63, and relative standard deviation=9.8 bpm). This study shows that a majority of patients with chronic obstructive pulmonary disease can identify a self-perceived dyspnoea threshold during the 6MWT. This HR at the dyspnoea threshold is highly reproducible and enable estimation of the HR at the ventilatory threshold.
Fichier non déposé

Dates et versions

hal-03139738 , version 1 (12-02-2021)

Identifiants

Citer

Annabelle Couillard, Emilie Tremey, Christian Préfaut, Chevance Guillaume, Nelly Héraud, et al.. Evolution of automatic and controlled motivation toward physical activity and sedentary behaviors during pulmonary rehabilitation. ERS International Congress 2016 abstracts, Sep 2016, Londres, United Kingdom. pp.PA2059, ⟨10.1183/13993003.congress-2016.PA2059⟩. ⟨hal-03139738⟩
77 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More