One minute sit‐to‐stand test is an alternative to 6MWT to measure functional exercise performance in COPD patients

Introduction Chronic obstructive pulmonary disease (COPD) is frequently associated with a reduced functional exercise performance. Even if this parameter is routinely evaluated using 6‐minute walking test (6MWT), new field tests are regularly investigated as alternative tests. The aim of this study was to compare functional exercise performance evaluation by sit‐to‐stand test (STST) and 6MWT and to evaluate reliability and repeatability of the STST in COPD patients. Method Forty‐two COPD patients performed randomly two tests: 6MWT and STST. Each test was repeated two times. Distance (6MWD) and number of repetitions were measured. Cardiorespiratory parameters, dyspnea and lower limb fatigue (Borg) were recorded before and after the tests. Results Sit‐to‐stand repetitions (19 ± 6) and 6MWD (441 ± 104 m) were correlated (r = .716; P