Pulmonary and Critical Care Medicine Section, VA Boston Healthcare System, Boston, MA, USA; Channing Division of Network Medicine, Brigham & Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Department of Veterans Affairs, Rehabilitation Research and Development Service, USA.
Pulmonary and Critical Care Medicine Section, VA Boston Healthcare System, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
Respir Med. 2018 Jul;140:63-70. doi: 10.1016/j.rmed.2018.05.012. Epub 2018 May 19.
Low physical activity (PA) is associated with adverse health outcomes independent of airflow limitation in COPD. Self-reported assessments are often limited to global estimates of PA and may not be directly translatable to patients' goals and motivations. We developed a task-oriented PA checklist and examined its performance relative to pedometer-assessed daily step count in two COPD cohorts.
Task-oriented daily physical activity (DPA) was assessed in two COPD cohorts using either interviewer-administered recall questionnaire (DPA-R, Cohort 1, n = 109) or a self-administered diary-format daily checklist (DPA-C, Cohort 2, n = 175). Daily step count was measured in both cohorts using the Omron HJ-720 ITC pedometer. Univariate associations between individual DPA items and [a] cross-sectional and [b] longitudinal change (Cohort 1) in daily step count were assessed using a Pearson's correlation. Composite scores comprised of individual DPA items with univariate association p-values <0.1 were tested for association with daily step count using multivariate models.
Tasks associated with average daily step count in both cohorts included putting on shoes, showering, washing hair, walking for exercise, the frequency of walks >10 min, and walking on an incline (Pearson's rho range = 0.14-0.43). A composite score of these 6 DPA items demonstrated significant associations with baseline average daily step count in both cohorts (ρ = 0.5 & 0.47, Cohorts 1 & 2, respectively) and longitudinal change in daily step count (ρ = 0.46, Cohort 1).
Self-reported task-oriented assessments complement direct monitoring and have potential clinical utility in exercise counseling to increase PA among COPD patients.
ClinicalTrials.gov NCT01772082.
在 COPD 患者中，低体力活动（PA）与不良健康结果有关，而与气流受限无关。自我报告的评估通常仅限于 PA 的全球估计，并且可能无法直接转化为患者的目标和动机。我们开发了一种面向任务的 PA 清单，并在两个 COPD 队列中检查了其相对于计步器评估的日常步数的表现。
在两个 COPD 队列中，使用访谈者管理的回忆问卷（DPA-R，队列 1，n=109）或自我管理的日记格式日常检查表（DPA-C，队列 2，n=175）评估面向任务的日常 PA。在两个队列中，使用 Omron HJ-720 ITC 计步器测量每日步数。使用 Pearson 相关分析评估 DPA 项目与[ a]横断面和[ b]纵向变化（队列 1）之间的个体 DPA 项目之间的单变量相关性。使用多元模型测试与每日步数相关的具有单变量关联 p 值<0.1 的单个 DPA 项目组成的综合评分。
与两个队列中的平均每日步数相关的任务包括穿鞋、洗澡、洗头、散步锻炼、超过 10 分钟的散步频率以及在斜坡上行走（Pearson's rho 范围为 0.14-0.43）。这 6 个 DPA 项目的综合评分与两个队列中的基线平均每日步数均显示出显著相关性（ρ=0.5 和 0.47，队列 1 和 2），并且与每日步数的纵向变化也相关（ρ=0.46，队列 1）。
自我报告的面向任务的评估补充了直接监测，并且在 COPD 患者的运动咨询中具有潜在的临床实用性，可以增加 PA。
ClinicalTrials.gov NCT01772082。
