Two-Arm Randomized Pilot Intervention Trial to Decrease Sitting Time and Increase Sit-To-Stand Transitions in Working and Non-Working Older Adults.
Two-Arm Randomized Pilot Intervention Trial to Decrease Sitting Time and Increase Sit-To-Stand Transitions in Working and Non-Working Older Adults.
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两臂随机试验干预试验可减少坐姿，并增加工作和非工作老年人的静坐转变。
DOI：
10.1371/journal.pone.0145427
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Merchant G
中科院分区：
文献类型：
--
作者：
Kerr J;Takemoto M;Bolling K;Atkin A;Carlson J;Rosenberg D;Crist K;Godbole S;Lewars B;Pena C;Merchant G
久坐不动与健康状况不佳有关。目前还不清楚是减少坐着的总时间还是增加从坐到站的短暂转换更有益。我们进行了一项随机试点研究，以评估工作和非工作的老年人减少这两个不同的行为目标是否可行。30名50-70岁的成年人(15名工作人员和15名非工作人员)被随机分为两种情况之一(每天减少2小时坐着或每天增加30次从坐到站的短暂转换)。坐位时间、站立时间、坐立转换和步态由大腿磨损测斜仪(ACTIVATE PAL)评估。参与者在基线时接受为期7天的评估，并在实施干预期间进行跟踪(2周)。混合效应回归分析调整了参与者的天数、设备佩戴时间和就业状况。考察了时间与条件的交互作用。招募、评估和实施干预措施是可行的。“减少坐姿”组的坐姿时间减少了两个小时，而“增加坐姿到站姿”组的坐姿时间没有变化(p<；.001)。坐姿到站姿转换组增加了坐姿到站姿转换，而坐着组没有(p<；.001)。这项研究首次证明了特定的久坐行为目标的可行性和初步效果。临床试验.gov NCT02544867
Excessive sitting has been linked to poor health. It is unknown whether reducing total sitting time or increasing brief sit-to-stand transitions is more beneficial. We conducted a randomized pilot study to assess whether it is feasible for working and non-working older adults to reduce these two different behavioral targets. Thirty adults (15 workers and 15 non-workers) age 50–70 years were randomized to one of two conditions (a 2-hour reduction in daily sitting or accumulating 30 additional brief sit-to-stand transitions per day). Sitting time, standing time, sit-to-stand transitions and stepping were assessed by a thigh worn inclinometer (activPAL). Participants were assessed for 7 days at baseline and followed while the intervention was delivered (2 weeks). Mixed effects regression analyses adjusted for days within participants, device wear time, and employment status. Time by condition interactions were investigated. Recruitment, assessments, and intervention delivery were feasible. The ‘reduce sitting’ group reduced their sitting by two hours, the ‘increase sit-to-stand’ group had no change in sitting time (p < .001). The sit-to-stand transition group increased their sit-to-stand transitions, the sitting group did not (p < .001). This study was the first to demonstrate the feasibility and preliminary efficacy of specific sedentary behavioral goals. clinicaltrials.gov NCT02544867