Comparison of different exercise tests in assessing outcomes of pulmonary rehabilitation

Comparing Various Exercise Tests for Assessing the Response to Pulmonary Rehabilitation in Patients With COPD

“…In our study, the CWET was more responsive than the MIET, as reported previously in a study by Ong et al 23 However, it must be mentioned that the responsiveness reported in that study was described as the percentage change from baseline, whereas we used effect size which is a better measure to compare the relative effectiveness of different exercise tests. In endurance testing, a submaximal exercise level is maintained and it could be hypothesized that there is www.jcrpjournal.com a greater improvement in submaximal exercise capacity in response to PR compared with changes in maximum exercise capacity.…”

“…However, another study using a workload of 75% of the maximal exercise capacity showed that subjects rated themselves as slightly improved if the change in exercise endurance time was ≥ 101 seconds. 23 Furthermore, the main problem with endurance testing is when the baseline exercise time is too long, modest changes with exercise training can then lead to exercise below critical power, meaning that exercise can be continued for a very long time and the response to training will be overestimated. 7 In this respect, our mean baseline exercise duration was 260 ± 139 seconds and very comparable to that observed in the study by Laviolette et al 8 (approximately 300 ± 150 seconds).…”

Creatine supplementation for patients with COPD receiving pulmonary rehabilitation: A systematic review and meta‐analysis

“…An adequately powered and methodologically rigorous study using a computer‐generated randomization scheme and strict allocation concealment, with sample size calculation and intent to treat analysis, may provide a more valid indication of the effectiveness of creatine supplementation in COPD patients receiving pulmonary rehabilitation. In addition, the use of a more responsive outcome measure for exercise capacity such as cycle endurance time 45–47 may increase the likelihood of being able to assess whether there is any benefit in adding creatine supplementation to pulmonary rehabilitation in patients with COPD.…”

Traitement médicamenteux de la bronchopneumopathie chronique obstructive en état stable

“…Ce test présente aussi l'avantage de disposer d'une différence minimale cliniquement pertinente connue (50 m environ). Enfin, les tests d'exercice commencent à être intégrés dans des études longitudinales permettant d'en déterminer l'histoire naturelle [17,18]. Les marqueurs biologiques (expectoration induite, air exhalé.…”