Quantifying physical activity in COPD: different measures for different purposes.
Langer
D
D
Pitta
F
F
Troosters
T
T
Burtin
C
C
Decramer
M
M
Gosselink
R
R
D015444:Exercise / Q000502:physiology*; D006801:Humans; D007866:Leg / Q000502:physiology*; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*