P‐Maestu 2000 (II).

Methods	Randomised, parallel group design
Participants	49 patients with stable COPD referred to rehabilitation program by pulmonologist
Interventions	8 week supervised treadmill (60min 4 x wk) versus 8 week unsupervised home walking program (3‐4 km 4 x wk)
Outcomes	In the incremental and constant work‐rate exercise test the VO2 max, duration on treadmill, VCO2, lactate accumulation and respiratory rate were improved more in the center based group. There was no difference in quality of life or lung function tests (between groups).
Notes	Eight dropouts were not included in analysis. See P‐Maestu 2003 which appears to be a longer term follow‐up Study conducted in Madrid Spain
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear