The PROactive instruments to measure physical activity in patients with chronic obstructive pulmonary disease.

ABSTRACT: No current patient-centred instrument captures all dimensions of physical activity in chronic obstructive pulmonary disease (COPD). Our objective was item reduction and initial validation of two instruments to measure physical activity in COPD.Physical activity was assessed in a 6-week, randomised, two-way cross-over, multicentre study using PROactive draft questionnaires (daily and clinical visit versions) and two activity monitors. Item reduction followed an iterative process including classical and Rasch model analyses, and input from patients and clinical experts.236 COPD patients from five European centres were included. Results indicated the concept of physical activity in COPD had two domains, labelled "amount" and "difficulty". After item reduction, the daily PROactive instrument c

SUBMITTER: Gimeno-Santos E 

PROVIDER: S-EPMC4589432 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature