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Table 1 Schedule of evaluations

From: Tai chi mind-body exercise in patients with COPD: study protocol for a randomized controlled trial

     Outcome        Measurement/instrument Month
0 12 24
Physical functioning
Exercise capacity 6-minute walk test (6 MW)* X X X
Bicycle cardiopulmonary exercise test**
Strength/flexibility Chair sit and reach X X X
Chair stand
Physical function PROMIS physical function X X X
Health-related quality-of-life and symptoms (HRQL)
COPD-specific HRQL Chronic respiratory disease questionnaire (CRQ)* X X X
Dyspnea UCSD shortness of breath questionnaire; X X X
MMRC dyspnea scale
Fatigue PROMIS fatigue X X X
Psychosocial functioning and support
Self-efficacy COPD self-efficacy scale X X X
Mood Center for epidemiologic studies-depression scale (CES-D) X X X
Stress Perceived stress scale X X X
Perceived social support Multidimensional scale of perceived social support X X X
Pulmonary function
Spirometry and lung volumes Standard pulmonary function tests X X X
  1. *Primary measures. **Cardiopulmonary exercise test (n = 50) will be done in a subset of patients. PROMIS, Patient-Reported Outcome Measurement Information System; COPD, chronic obstructive pulmonary disease; UCSD, University of California, San Diego; MMRC, Modified Medical Research Council.