Daily physical activity and related risk factors in COPD

This was a cross-sectional study designed to examine risk factors associated with daily physical activity in 88 community-stable patients with COPD. Lung function testing to measure pre- and post-bronchodilator FEV1, FVC and FEV1/FVC ratio were conducted using the Vitalograph Alpha spirometer. Other endpoints of interest included 6MWD, CAT and SGRQ.