TABLE 3 Change in step count, exercise capacity and health status in the control and pedometer groups at 3 months
Control groupPedometer groupp-value
ΔStep count steps·day−1138.3±1950.43080±3254.8<0.001
ΔSGRQ points−3.8±10.9−8.8±12.20.02
ΔCAT points−0.6±6.6−3.5±5.50.001
Δ6MWD m−0.7±24.412.4±34.60.03
ΔmMRC dyspnoea scale points0.0±0.90.2±0.70.10
  • Data are presented as mean±sd, unless otherwise stated. SGRQ: St George’s Respiratory Questionnaire; CAT: chronic obstructive pulmonary disease assessment test; 6MWD: 6-min walking distance; mMRC: modified Medical Research Council.