The literature suggests self-efficacy is a determinant of physical activity and management of Chronic Obstructive Pulmonary Disease (COPD). The purpose of this study was to (1) test the effects of two vicarious experience interventions, coping versus mastery modeling, on self-efficacy in COPD patients performing a cardiopulmonary exercise test (CPET), and (2) determine the type of self-efficacy most strongly related to physical activity in COPD patients. After a baseline assessment of self-efficacy (task, coping for exercise, coping for breathing, scheduling, and walking) and potential moderators, 120 COPD patients watched a mastery model or coping model CPET video, or received usual care verbal instructions. Then, self-efficacy was assessed, followed by a CPET, and another assessment of self-efficacy. Fitbits tracked participants' step count the week following contact. Repeated measures MANOVAs assessed the intervention effects and multiple regressions assessed the contribution of self-efficacy subtypes to step count. All self-efficacy subtypes improved in the mastery and coping conditions, although greater improvement of self-efficacy for coping with exercise barriers was observed in the coping condition. Self-efficacy did not improve in the control condition and no moderators were identified. Self-efficacy for coping with exercise barriers was the self-efficacy subtype most strongly related to step count. This research suggests modeling is a useful intervention technique to enhance self-efficacy in COPD patients, although coping models may be more beneficial than mastery models for enhancing capability beliefs during complex tasks. Future interventions in COPD patients should target self-efficacy for coping with exercise barriers.

中文翻译：

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应对与熟练建模干预有关，以增强COPD患者运动的自我效能。

文献表明自我效能是体育活动和慢性阻塞性肺疾病（COPD）管理的决定因素。这项研究的目的是（1）在进行心肺运动测试（CPET）的COPD患者中，测试两种替代性经验干预措施（应对和掌握建模）对自我效能的影响，以及（2）确定自我干预的类型疗效与COPD患者的体育活动最密切相关。在对自我效能（任务，应对运动，呼吸，日程安排和步行的应对）和潜在的主持人进行基线评估之后，有120位COPD患者观看了掌握模型或应对模型的CPET视频，或接受了日常护理的口头指示。然后，先评估自我效能，然后评估CPET，然后再评估自我效能。Fitbits跟踪参与者的 在联系后的一周内逐步统计。重复测量MANOVAs评估了干预效果，多元回归评估了自我效能亚型对步数的贡献。在掌握和应对条件下，所有自我效能感亚型均得到改善，尽管在应对条件下，人们观察到应对运动障碍的自我效能感得到了更大的改善。在控制条件下，自我效能并未提高，也未发现调节剂。应对运动障碍的自我效能感是与步数最密切相关的自我效能感亚型。这项研究表明，建模是增强COPD患者自我效能的有用干预技术，尽管应对模型可能比精通模型更有利于增强复杂任务中的能力信念。