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首页> 美国卫生研究院文献>PLoS Clinical Trials >Estimated impact of replacing sitting with standing at work on indicators of body composition: Cross-sectional and longitudinal findings using isotemporal substitution analysis on data from the Take a Stand! study
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Estimated impact of replacing sitting with standing at work on indicators of body composition: Cross-sectional and longitudinal findings using isotemporal substitution analysis on data from the Take a Stand! study

机译：估计在工作中以坐姿代替坐姿对身体成分的影响：使用等时替代分析对“站立”的数据进行横断面和纵向分析！研究

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The purpose was to examine and compare the effects of replacing time spent sitting with standing at work on fat-free mass, fat mass and waist circumference using isotemporal substitution. Analyses were conducted on work hours on both cross-sectional and longitudinal data. The study included 223 persons from an intervention study aimed at reducing sitting time at work among office employees. Sitting, standing and anthropometry were measured objectively. Cross-sectional isotemporal substitution analyses were modelled on baseline data, while longitudinal analyses were modelled based on differences in sitting and standing time at work between baseline and 1-month follow-up in relation to differences in anthropometric measures between baseline and 3-months follow-up. Replacing one hour of sitting time with one hour of standing was associated with a 0.21 kg higher fat-free mass in the longitudinal analysis and 0.95 kg in the cross-sectional analysis. Fat mass was 0.32 kg lower in the longitudinal analysis and 0.61 kg lower in the cross-sectional analysis. Waist circumference decreased by 0.38 cm in the longitudinal analysis and 0.81 cm in the cross-sectional analysis. Both cross-sectional and longitudinal analyses showed an effect on body composition measures by replacing one hour of sitting with standing however, this effect was largest in the cross-sectional analyses.Trial registration ClinicalTrials.gov .
机译：目的是研究和比较使用等时替代工作所花费的时间来代替无脂脂肪，脂肪和腰围，以坐着和站着工作来代替时间。在工作时间上对横截面和纵向数据进行了分析。该研究包括来自一项干预研究的223人，该研究旨在减少办公室员工的上班时间。坐，站和人体测量法是客观测量的。等时横断面替代分析基于基线数据，而纵向分析则基于基线与1个月随访之间工作时间的坐姿和站立时间的差异以及与基线与3个月随访之间人体测量学方法的差异相关的模型-向上。在纵向分析中，将一小时的坐着时间改为一小时的站立所带来的无脂肪量增加了0.21 kg，而在横截面分析中，则增加了0.95 kg。纵向分析的脂肪量降低了0.32千克，而横截面分析的脂肪量降低了0.61千克。腰围在纵向分析中减小了0.38 cm，在横截面分析中减小了0.81 cm。横断面和纵向分析都显示了通过坐着代替一个小时的坐姿对身体成分的影响，但是，这种影响在横断面分析中最大。试验注册 ClinicalTrials.gov。

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