title: Maximum voluntary ventilation is more strongly associated with energy expenditure during simple activities of daily living than measures of airflow obstruction or respiratory muscle strength in patients with COPD.
abstract: This is a retrospective analysis of data in which we explored the association between energy expenditure (EE) and lung function in patients with chronic obstructive pulmonary disease (COPD). A total of 36 participants (20 males; forced expiratory volume in 1 second (FEV(1)) of 48 ± 15% predicted) underwent measures of indirect calorimetry whilst performing five simple activities of daily living. Maximal voluntary ventilation was the only lung function parameter associated with EE. These data highlight the limited extent to which the FEV(1) is related to the functional performance of patients with COPD.
authors.affiliation: Laboratório de Pesquisa em Fisioterapia Pulmonar, Physiotherapy Department, Universidade Estadual de Londrina, Paraná, Brazil.
authors.forename: Vinicius
authors.initials: V
authors.lastname: Cavalheri
authors.forename: Kylie
authors.initials: K
authors.lastname: Hill
authors.forename: Leila
authors.initials: L
authors.lastname: Donaria
authors.forename: Carlos Augusto
authors.initials: CA
authors.lastname: Camillo
authors.forename: Fabio
authors.initials: F
authors.lastname: Pitta
mesh_terms: D000203:Activities of Daily Living; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008451:Maximal Voluntary Ventilation / Q000502:physiology*; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*; D012132:Respiratory Muscles / Q000503:physiopathology*; D012189:Retrospective Studies