办公人员在工作时间内及工作时间外的客观测量的久坐行为和身体活动。
Office workers' objectively measured sedentary behavior and physical activity during and outside working hours.
机构信息
From the School of Sport, Exercise and Health Sciences (Dr Clemes), Loughborough University, Loughborough, Leicestershire, United Kingdom; MoveLab (Dr O'Connell); Physical Activity and Exercise Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; and Diabetes Research Centre (Dr Edwardson), University of Leicester, Leicester General Hospital, Leicester, Leicestershire, United Kingdom.
出版信息
J Occup Environ Med. 2014 Mar;56(3):298-303. doi: 10.1097/JOM.0000000000000101.
OBJECTIVE
To examine objectively determined sedentary behavior and physical activity (PA) during and outside working hours in full-time office workers.
METHODS
A total of 170 participants wore an ActiGraph GT1M accelerometer for 7 days. Time spent sedentary (<100 counts/min), in light-intensity PA (100 to 1951 counts/min), and moderate-to-vigorous PA (≥1952 counts/min) was calculated for workdays (including working hours and nonworking hours) and nonworkdays.
RESULTS
Participants accumulated significantly higher levels of sedentary behavior (68% vs 60%) and lower levels of light-intensity activity (28% vs 36%) on workdays in comparison with nonworkdays. Up to 71% of working hours were spent sedentary. Individuals who were most sedentary at work were also more sedentary outside work.
CONCLUSIONS
Those who are most sedentary at work do not compensate by increasing their PA or reducing their sedentary time outside work. Occupational interventions should address workplace and leisure-time sedentary behavior.
目的
客观考察全职上班族在工作时间内及工作时间外的久坐行为和身体活动（PA）。
方法
共有 170 名参与者佩戴 ActiGraph GT1M 加速度计 7 天。计算工作日（包括工作时间和非工作时间）和非工作日期间的久坐时间（<100 计数/分钟）、低强度 PA（100 至 1951 计数/分钟）和中高强度 PA（≥1952 计数/分钟）的时间。
结果
与非工作日相比，参与者在工作日的久坐行为（68%比 60%）和低强度活动（28%比 36%）水平显著更高。高达 71%的工作时间处于久坐状态。在工作中最久坐的人在工作之外也更久坐。
结论
那些在工作中最久坐的人并没有通过增加 PA 或减少工作外的久坐时间来弥补。职业干预措施应针对工作场所和闲暇时间的久坐行为。
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