Table 2. Selected testing methods in pulmonary rehabilitation.

	Test (result parameter)
Physical performance	● 6-minute walk distance (meter) ● Shuttle walk tests (meter) ● Incremental cycle test (peak work rate) ● “constant work rate cycling“-test (time) ● Spiroergometry (VO 2max, among others) ● “Sit to stand“ tests (number of repetitions or time) ● Isometric/isokinetic maximum strength measurement (e.g., Newton)
Lung function	● Bodyplethysmography ● Blood gas analysis
Dyspnea	● Borg scale ● Visual analogue scale
Quality of life	● Chronic Respiratory Disease Questionnaire (CRQ) ● St. George‘s Respiratory Questionnaire (SGRQ) ● COPD-Assessment Test (CAT) ● Short-Form 36 Questionnaire (SF-36) ● Hospital Anxiety and Depression Scale (HADS)

COPD chronic obstructive pulmonary disease