PMID- 37586707 OWN - NLM STAT- MEDLINE DCOM- 20230915 LR - 20230916 IS - 1752-699X (Electronic) IS - 1752-6981 (Print) IS - 1752-6981 (Linking) VI - 17 IP - 9 DP - 2023 Sep TI - Exploration of the minimal clinically important difference value of the 3-min simulated pedal motion in patients with chronic obstructive pulmonary disease: A self-controlled prospective clinical trial. PG - 951-961 LID - 10.1111/crj.13687 [doi] AB - BACKGROUND: To help elderly patients with severe or very severe chronic obstructive pulmonary disease (COPD) with pulmonary rehabilitation, we have developed Zheng's supine rehabilitation exercise (ZSRE). Currently, none of the terminal or critically ill patients with severe exercise limitation can complete the 6-min walking distance (6MWD) and cardiopulmonary exercise testing (CPET). METHODS: In this study, we discuss the definition of the standardized 3-min simulated pedal motion (3MSPM) test and its operational specifications. Also, we evaluate the minimal clinically important difference (MCID) value of the 3MSPM. RESULTS: The results showed that the mMRC score of COPD patients with acute exacerbation of dyspnea was progressively reduced from the second day of respiratory rehabilitation, and the difference between the first and seventh days was statistically significant (p < 0.000, chi(2) = 176.664). 6MWD increased progressively, and the difference between 6MWD on day 1-7 was statistically significant (p = 0.024, F = 2.443). The difference between 3MSPM on day 1-7 was also statistically significant (p < 0.000, F = 4.481). Further analysis showed that 6MWD was negatively correlated with mMRC (p < 0.000, OR = -0.524). 3MSPM was positively correlated with 6MWD (p < 0.000, OR = 0.640) but negatively correlated with mMRC (p < 0.000, OR = -0.413). There is a linear regression relationship between 6MWD and 3MSPM, that is, 6MWD = 14.151 + 0.301 * 3MSPM, adjusted R(2) = 0.401. CONCLUSION: Based on the regression equation, 3MSPM can predict 6MWD, and it can be used as a simple exercise endurance method to evaluate patients with safety hazards in underground activities or who cannot complete the 6MWD test. The minimum clinically important difference value is increased by 23. CI - (c) 2023 The Authors. The Clinical Respiratory Journal published by John Wiley & Sons Ltd. FAU - Zhang, Xiaoting AU - Zhang X AD - Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China. FAU - Liu, Ni AU - Liu N AUID- ORCID: 0000-0003-1024-305X AD - State Key Laboraory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. FAU - Yang, Feng AU - Yang F AD - State Key Laboraory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. FAU - Su, Guansheng AU - Su G AUID- ORCID: 0000-0002-6164-5721 AD - State Key Laboraory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. FAU - Hu, Jieying AU - Hu J AD - State Key Laboraory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. FAU - Chen, Rongchang AU - Chen R AD - Shenzhen Institute of Respiratory Diseases, Shenzhen City, Guangdong province, China. FAU - Zheng, Zeguang AU - Zheng Z AD - State Key Laboraory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China. LA - eng GR - 202201020513/Guangzhou Science and Technology Plans/ GR - 202201020435/Guangzhou Science and Technology Plans/ GR - [2021]56/First Affiliated Hospital of Guangzhou Medical University Plans/ PT - Journal Article DEP - 20230816 PL - England TA - Clin Respir J JT - The clinical respiratory journal JID - 101315570 SB - IM MH - Humans MH - Aged MH - Prospective Studies MH - *Minimal Clinically Important Difference MH - *Pulmonary Disease, Chronic Obstructive MH - Exercise Test MH - Exercise MH - Exercise Tolerance PMC - PMC10500321 OTO - NOTNLM OT - 3MSPM OT - 6MWD OT - chronic obstructive pulmonary disease OT - exercise therapy OT - pulmonary rehabilitation COIS- We declare that we have no conflict of interest. EDAT- 2023/08/17 00:42 MHDA- 2023/09/15 06:43 PMCR- 2023/08/16 CRDT- 2023/08/16 20:03 PHST- 2023/05/30 00:00 [revised] PHST- 2022/11/27 00:00 [received] PHST- 2023/08/03 00:00 [accepted] PHST- 2023/09/15 06:43 [medline] PHST- 2023/08/17 00:42 [pubmed] PHST- 2023/08/16 20:03 [entrez] PHST- 2023/08/16 00:00 [pmc-release] AID - CRJ13687 [pii] AID - 10.1111/crj.13687 [doi] PST - ppublish SO - Clin Respir J. 2023 Sep;17(9):951-961. doi: 10.1111/crj.13687. Epub 2023 Aug 16.