Department of Medicine, University of Washington, Seattle, WA, USA.
Department of Health Services Research and Development, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA.
COPD. 2021 Jun;18(3):265-271. doi: 10.1080/15412555.2021.1920902. Epub 2021 May 10.
Decreased physical activity (PA) is associated with morbidity and mortality in COPD patients. In this secondary analysis of data from a 12-week longitudinal study, we describe factors associated with PA in COPD. Participants completed the Physical Activity Checklist (PAC) daily for a 7- to 8-day period. PA was measured monthly using the Physical Activity Scale for the Elderly (PASE). At three different time points, daily step count was measured for one week with an Omron HJ-720ITC pedometer. The 35 participants were primarily male (94%) and White (91%), with an average age of 66.5 years and FEV 44.9% predicted. Common activities reported on the PAC were walking (93%), preparing a meal (89%), and traveling by vehicle (96%). PA measured by both PASE score ( = 0.01) and average daily step count ( = 0.04) decreased during follow-up. In repeated measures multivariable modeling, participants living with others had a higher daily step count (ß = 942 steps, = 0.01) and better PASE scores (ß = 46.4, < 0.001). Older age was associated with decreased step count (ß = -77 steps, < 0.001) whereas White race was associated with lower PASE scores (ß = -55.4, < 0.001) compared to non-White race. Other demographic factors, quality of life, and medications were not associated with PA. A better understanding of the role of social networks and social support may help develop interventions to improve PA in COPD.
体力活动减少与 COPD 患者的发病率和死亡率有关。在这项为期 12 周的纵向研究的二次分析中，我们描述了 COPD 患者体力活动的相关因素。参与者在 7-8 天的时间内每天填写体力活动检查表（PAC）。使用老年人体力活动量表（PASE）每月测量一次体力活动。在三个不同的时间点，使用欧姆龙 HJ-720ITC 计步器对一周的日常步数进行了一周的测量。35 名参与者主要为男性（94%）和白人（91%），平均年龄为 66.5 岁，FEV 为预测值的 44.9%。PAC 报告的常见活动包括步行（93%）、准备饭菜（89%）和乘车出行（96%）。PASE 评分（ = 0.01）和平均每日步数（ = 0.04）在随访期间均降低。在重复测量多变量模型中，与他人同住的参与者每日步数更多（ß = 942 步， = 0.01），PASE 评分更高（ß = 46.4，<0.001）。与非白人种族相比，年龄较大与步数减少（ß = -77 步，<0.001）有关，而白人种族与 PASE 评分较低（ß = -55.4，<0.001）有关。其他人口统计学因素、生活质量和药物与 PA 无关。更好地了解社交网络和社会支持的作用可能有助于开发改善 COPD 患者 PA 的干预措施。
