Table 1. Evidence for pulmonary rehabilitation in COPD*.

Effects	Evidence level
Improved quality of life	A
Improved general physical performance ability	A
Improved strength and leg muscle mass	A
Improved strength and arm muscle mass	A
Reduction of resting and exertional dyspnea	A
Reduction in hospital admissions and days spent in hospital	B
Decrease in COPD-associated anxiety and depression symptoms	B

* After Ries et al. 2007 (4); COPD, chronic obstructive pulmonary disease