Abstract：
BACKGROUND: Very few studies have examined patterns of physical activity (PA) during a pulmonary rehabilitation (PR) program in people with COPD.
OBJECTIVE: To compare the patterns of PA in: 1) the week before commencing PR (pre-PR) with a week during PR (PR week); 2) PR days and non-PR days during a PR week; 3) pre-PR and the week following PR completion (post-PR).
METHODS: This was a multicenter, prospective cohort study. Participants attended twice weekly supervised PR for 8-12 weeks. Daily step count (primary outcome), time in light activities, time in moderate to vigorous PA (MVPA), total sedentary time and sit-to-stand (STS) transitions were measured using a thigh worn accelerometer for seven days, at each assessment time point: pre-PR, PR week and post-PR.
RESULTS: 29 participants, mean age (SD) 69years(7), FEV1 53%pred(16). The PR week compared to pre-PR, showed higher daily: step count (mean difference (95%CI)), 941steps(388-1494); and MVPA, 11mins(6-15), with no difference in: time in light activities, -1min(-6-5); total sedentary time, 7mins(-21-36); or STS transitions, 0(-5-6). PR days compared to non-PR days showed higher: step count, 2810steps(1706-3913); time in light activities 11mins(1-20); time in MVPA, 27mins(17-35) and STS transitions, 8(4-12), with no difference in total sedentary time: -33mins(-80-15). There were no differences in any PA measures post-PR compared to pre-PR (p < 0.05).
CONCLUSIONS: Daily step count and time spent in MVPA increased significantly during the PR week, solely due to increased PA on days participants attended PR.
OBJECTIVE: To compare the patterns of PA in: 1) the week before commencing PR (pre-PR) with a week during PR (PR week); 2) PR days and non-PR days during a PR week; 3) pre-PR and the week following PR completion (post-PR).
METHODS: This was a multicenter, prospective cohort study. Participants attended twice weekly supervised PR for 8-12 weeks. Daily step count (primary outcome), time in light activities, time in moderate to vigorous PA (MVPA), total sedentary time and sit-to-stand (STS) transitions were measured using a thigh worn accelerometer for seven days, at each assessment time point: pre-PR, PR week and post-PR.
RESULTS: 29 participants, mean age (SD) 69years(7), FEV1 53%pred(16). The PR week compared to pre-PR, showed higher daily: step count (mean difference (95%CI)), 941steps(388-1494); and MVPA, 11mins(6-15), with no difference in: time in light activities, -1min(-6-5); total sedentary time, 7mins(-21-36); or STS transitions, 0(-5-6). PR days compared to non-PR days showed higher: step count, 2810steps(1706-3913); time in light activities 11mins(1-20); time in MVPA, 27mins(17-35) and STS transitions, 8(4-12), with no difference in total sedentary time: -33mins(-80-15). There were no differences in any PA measures post-PR compared to pre-PR (p < 0.05).
CONCLUSIONS: Daily step count and time spent in MVPA increased significantly during the PR week, solely due to increased PA on days participants attended PR.
摘要：
背景：很少有研究在COPD患者的肺康复（PR）计划中检查身体活动（PA）的模式。
目的：比较PA的模式：1）开始PR前一周（PR前）与PR期间一周（PR周）；2）PR周期间的PR天和非PR天；3）PR前和PR完成后一周（PR后）。
方法：这是一个多中心，前瞻性队列研究。参与者参加了为期8-12周的每周两次监督PR。每日步数（主要结果），光活动的时间，中度至剧烈PA（MVPA）的时间，总久坐时间和从坐到站（STS）的转变是使用大腿佩戴加速度计测量七天，在每个评估时间点：pre-PR，公关周和发布公关。
结果：29名参与者，平均年龄（SD）69岁（7），FEV153%pred(16)。公关周与公关前相比，每日显示较高：步数(平均差(95CI))，941步骤(388-1494)；和MVPA，11分钟（6-15），没有区别:光活动的时间，-1分钟（-6-5）；总久坐时间，7分钟(-21-36);或STS转换,0（-5-6）。PR天数与非PR天数相比显示更高：步数，2810steps(1706-3913);光活动时间11分钟(1-20);MVPA时间,27分钟（17-35）和STS转换，8(4-12)总久坐时间没有差异：-33分钟（-80-15）。与PR前相比，PR后的任何PA测量均无差异（p<0.05）。
结论：在PR周期间，每天的步数和在MVPA中花费的时间显着增加，仅由于参与者参加PR的天数增加了PA。
目的：比较PA的模式：1）开始PR前一周（PR前）与PR期间一周（PR周）；2）PR周期间的PR天和非PR天；3）PR前和PR完成后一周（PR后）。
方法：这是一个多中心，前瞻性队列研究。参与者参加了为期8-12周的每周两次监督PR。每日步数（主要结果），光活动的时间，中度至剧烈PA（MVPA）的时间，总久坐时间和从坐到站（STS）的转变是使用大腿佩戴加速度计测量七天，在每个评估时间点：pre-PR，公关周和发布公关。
结果：29名参与者，平均年龄（SD）69岁（7），FEV153%pred(16)。公关周与公关前相比，每日显示较高：步数(平均差(95CI))，941步骤(388-1494)；和MVPA，11分钟（6-15），没有区别:光活动的时间，-1分钟（-6-5）；总久坐时间，7分钟(-21-36);或STS转换,0（-5-6）。PR天数与非PR天数相比显示更高：步数，2810steps(1706-3913);光活动时间11分钟(1-20);MVPA时间,27分钟（17-35）和STS转换，8(4-12)总久坐时间没有差异：-33分钟（-80-15）。与PR前相比，PR后的任何PA测量均无差异（p<0.05）。
结论：在PR周期间，每天的步数和在MVPA中花费的时间显着增加，仅由于参与者参加PR的天数增加了PA。
