Outcome measures in chronic obstructive pulmonary disease (COPD): strengths and limitations

Respiratory Research

Table 1 Different methods to determine exercise capacity or activity levels in COPD

	Measure	Reference
field tests to determine exercise capacity	6-Minute Walk Test	[21]
	Shuttle Walk Test	[22, 23]
laboratory tests to assess exercise capacity	bicycle ergometer	[24]
	treadmill	[25]
assessment of activity levels	accelerometer	[26]

ISSN: 1465-993X