One minute sit-to-stand test is an alternative to 6MWT to measure functional exercise performance in COPD patients.
Study Goal
The researchers aimed to compare the functional exercise performance evaluation between the sit-to-stand test (STST) and the 6-minute walking test (6MWT) and assess the reliability and repeatability of the STST in COPD patients.
Results Summary
The study found that the sit-to-stand test (STST) was strongly correlated with the 6-minute walking test (6MWT) in evaluating functional exercise performance in COPD patients. Both tests showed good repeatability, and the STST demonstrated high reliability. Cardiorespiratory demand differed between the tests, but dyspnea and lower limb fatigue variations were similar.
Population
Forty-two COPD patients.
Effective Dosage
Not applicable (exercise tests, not a supplement).
Duration
Not specified (tests were repeated twice).
Interactions
None mentioned.
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
sit-to-stand test (STST) | no change | 6-minute walking distance (6MWD) | COPD patients | r = .716; P < .001 | correlated | #1 |
sit-to-stand test (STST) | no change | test performance | COPD patients | - | good repeatability was found | #2 |
6-minute walking test (6MWT) | no change | test performance | COPD patients | - | good repeatability was found | #3 |
sit-to-stand test (STST) | no change | test performance | COPD patients | ICC = 0.902 | good reliability was observed | #4 |
6-minute walking test (6MWT) | increase | heart rate | COPD patients | 23% ± 17% | variations were significantly different | #5 |
sit-to-stand test (STST) | increase | heart rate | COPD patients | 13% ± 11% | variations were significantly different | #6 |
6-minute walking test (6MWT) | decrease | pulsed oxygen saturation | COPD patients | -7.6% ± 4.6% | variations were significantly different | #7 |
sit-to-stand test (STST) | decrease | pulsed oxygen saturation | COPD patients | -0.7% ± 2.7% | variations were significantly different | #8 |
6-minute walking test (6MWT) | no change | dyspnea | COPD patients | P = .827 | variations were similar | #9 |
sit-to-stand test (STST) | no change | dyspnea | COPD patients | P = .827 | variations were similar | #10 |
6-minute walking test (6MWT) | no change | lower limb fatigue | COPD patients | P = .467 | variations were similar | #11 |
sit-to-stand test (STST) | no change | lower limb fatigue | COPD patients | P = .467 | variations were similar | #12 |
sit-to-stand test (STST) | no change | functional exercise performance | COPD patients | - | is a valuable alternative | #13 |
sit-to-stand test (STST) | no change | test performance | COPD patients | - | no learning effect was observed | #14 |
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 < .001). Good repeatability was found for STST and 6MWT. Good reliability was observed for STST (ICC = 0.902). Variations of heart rate and pulsed oxygen saturation were significantly different between these two tests (23% ± 17% vs 13% ± 11%; P = .022 and -7.6% ± 4.6% vs -0.7% ± 2.7%; P < .001 for 6MWT and STST, respectively). Variations of dyspnea and lower limb fatigue were similar between both tests (P = .827 and P = .467). CONCLUSION: The one minute sit-to-stand test is a valuable alternative to 6MWT to estimate functional exercise performance in COPD patients. The cardiorespiratory demand is different between both tests although the variation of dypsnea is similar. No learning effect was observed for STST.