The integrative Physical Activity-related Health Competence (PAHCO) model specifies competences (movement competence, control competence, and self-regulation competence) that enable people to lead a physically active lifestyle. This longitudinal study analyses the predictive quality of a multidimensional PAHCO assessment for levels of physical activity (PA) and their relevance for quality of life in COPD patients after pulmonary rehabilitation. At the end of an inpatient pulmonary rehabilitation (T2), 350 COPD patients participating in the Stay Active after Rehabilitation (STAR) study underwent assessments, including a six-factor measurement of PAHCO. PA (triaxial accelerometry) and quality of life (Saint George’s Respiratory Questionnaire) were recorded 6 weeks (T3) and 6 months (T4) after rehabilitation. Structural equation modelling (SEM) was used to regress the PAHCO assessment on PA, which should, in turn, influence quality of life. In univariable analysis, five and six factors of the PAHCO model were related to PA and quality of life, respectively. Multivariate modelling showed that the predictive analyses for the PA level were dominated by the 6-minute walking test representing movement competence (0.562 ≤ |β| ≤ 0.599). Affect regulation as an indicator of control competence co-predicted quality of life at T3 and levels of PA at T4. The PA level was, in turn, significantly associated with patients’ quality of life (0.306 ≤ |β| ≤ 0.388). The integrative PAHCO model may be used as a theoretical framework for predicting PA in COPD patients following pulmonary rehabilitation. The results improve our understanding of PA behaviour in COPD patients and bear implications for person-oriented PA promotion.

综合身体活动相关健康能力（PAHCO）模型指定了使人们能够过上身体活跃生活方式的能力（运动能力、控制能力和自我调节能力）。这项纵向研究分析了多维 PAHCO 评估对体力活动 (PA) 水平的预测质量及其与 COPD 患者肺康复后生活质量的相关性。在住院肺康复 (T2) 结束时，参与康复后保持活跃 (STAR) 研究的 350 名慢性阻塞性肺病患者接受了评估，包括 PAHCO 的六因素测量。康复后 6 周 (T3) 和 6 个月 (T4) 记录 PA（三轴加速度计）和生活质量（圣乔治呼吸问卷）。结构方程模型 (SEM) 用于回归 PAHCO 对 PA 的评估，这反过来又会影响生活质量。在单变量分析中，PAHCO模型的五个和六个因素分别与PA和生活质量相关。多变量模型显示，PA 水平的预测分析以代表运动能力的 6 分钟步行测试为主（0.562 ≤ |β| ≤ 0.599）。影响调节作为控制能力的指标，共同预测 T3 的生活质量和 T4 的 PA 水平。反过来，PA 水平与患者的生活质量显着相关（0.306 ≤ |β| ≤ 0.388）。综合 PAHCO 模型可用作预测 COPD 患者肺康复后 PA 的理论框架。研究结果提高了我们对 COPD 患者 PA 行为的理解，并对以人为本的 PA 推广具有重要意义。