Volume 24 Issue 1
Jan.  2026
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LIN Xiaoxiao, LIANG Shiyao, WEN Xiaomei. The mediating effect of dyspnea belief between fatigue degree and perceived exercise behavior in patients with chronic obstructive pulmonary disease[J]. Chinese Journal of General Practice, 2026, 24(1): 35-39. doi: 10.16766/j.cnki.issn.1674-4152.004324
Citation: LIN Xiaoxiao, LIANG Shiyao, WEN Xiaomei. The mediating effect of dyspnea belief between fatigue degree and perceived exercise behavior in patients with chronic obstructive pulmonary disease[J]. Chinese Journal of General Practice, 2026, 24(1): 35-39. doi: 10.16766/j.cnki.issn.1674-4152.004324
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The mediating effect of dyspnea belief between fatigue degree and perceived exercise behavior in patients with chronic obstructive pulmonary disease

doi: 10.16766/j.cnki.issn.1674-4152.004324

  • Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China

Funds:

 Y2023687

 2024KY0272

  • Received Date: 2025-10-20
    Available Online: 2026-04-01
    Abstract
  •   Objective  Patients with chronic obstructive pulmonary disease (COPD) commonly exhibit insufficient exercise behavior. To explore the intrinsic psychological mechanisms influencing patients ' exercise behaviors, this study analyzed the relationship between dyspnea belief and the perception of fatigue and exercise behaviors in COPD patients, aiming to provide a theoretical basis for formulating effective intervention strategies for this population.  Methods  A total of 215 COPD patients admitted to the Department of Respiratory and Critical Care Medicine at the First Affiliated Hospital of Wenzhou Medical University from January 2024 to July 2025 were selected for this study. After excluding invalid questionnaires, a final total of 203 cases were included. Assessments were conducted using the beliefs about breathlessness questionnaire (BBQ), the fatigue severity scale (FSS), and the exercise benefits/barriers scale (EBBS). The Pearson correlation coefficient and SPSS 30.0 statistical software were employed to analyze correlations and mediating effects.  Results  The BBQ, FSS, and EBBS scores of COPD patients were (36.90±5.06) points, (38.52±2.76) points, and (116.45±14.68) points, respectively. The EBBS score was negatively correlated with the FSS and BBQ scores, while the BBQ score was positively correlated with the FSS score. Fatigue degree could negatively predict the perceived level of exercise behavior and positively predict the dyspnea belief. After adding the mediating variable of the dyspnea belief, fatigue degree, and the dyspnea belief had a negative predictive effect on the perceived level of exercise behavior. The mediating effect of the dyspnea belief between the fatigue degree and the perceived level of exercise behavior in COPD patients accounted for 36.43%.  Conclusion  The degree of fatigue can not only directly reduce the perceived level of exercise behavior in COPD patients, but also indirectly reduce the perceived level of exercise behavior by enhancing the dyspnea belief. Reducing the degree of fatigue and lowering dyspnea belief may become important measures to improve the perceived level of exercise behavior in patients with COPD.

     

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