Defining the Relationship Between Average Daily Energy Expenditure and Field-Based Walking Tests and Aerobic Reserve in COPD

BACKGROUND: The aims of this study were to determine which tests of exercise capacity relate to average daily energy expenditure (DEE) and to quantify aerobic reserve during daily life in people with COPD. METHODS: A cross-sectional study was undertaken in 26 people with COPD (16 men; FEV(1), 50% ± 16%). Six-min walk distance (6MWD) and incremental shuttle walk distance (ISWD) measures were collected, and peak oxygen uptake (VO(2) peak) was …