Martin Anne, Adams Jacob M, Bunn Christopher, Gill Jason M R, Gray Cindy M, Hunt Kate, Maxwell Douglas J, van der Ploeg Hidde P, Wyke Sally, Mutrie Nanette
Physical Activity for Health Research Centre, Institute for Sport Physical Education and Health Sciences, University of Edinburgh, Edinburgh, UK.
Department of Computer and Information Sciences, Digital Health and Wellness Group, University of Strathclyde, Glasgow, UK.
BMJ Open Sport Exerc Med. 2017 Oct 11;3(1):e000285. doi: 10.1136/bmjsem-2017-000285. eCollection 2017.
Time spent inactive and sedentary are both associated with poor health. Self-monitoring of walking, using pedometers for real-time feedback, is effective at increasing physical activity. This study evaluated the feasibility of a new pocket-worn sedentary time and physical activity real-time self-monitoring device (SitFIT).
Forty sedentary men were equally randomised into two intervention groups. For 4 weeks, one group received a SitFIT providing feedback on steps and time spent sedentary (lying/sitting); the other group received a SitFIT providing feedback on steps and time spent upright (standing/stepping). Change in sedentary time, standing time, stepping time and step count was assessed using activPAL monitors at baseline, 4-week follow-up (T1) and 12-week (T2) follow-up. Semistructured interviews were conducted after 4 and 12 weeks.
The SitFIT was reported as acceptable and usable and seen as a motivating tool to reduce sedentary time by both groups. On average, participants reduced their sedentary time by 7.8 minutes/day (95% CI -55.4 to 39.7) (T1) and by 8.2 minutes/day (95% CI -60.1 to 44.3) (T2). They increased standing time by 23.2 minutes/day (95% CI 4.0 to 42.5) (T1) and 16.2 minutes/day (95% CI -13.9 to 46.2) (T2). Stepping time was increased by 8.5 minutes/day (95% CI 0.9 to 16.0) (T1) and 9.0 minutes/day (95% CI 0.5 to 17.5) (T2). There were no between-group differences at either follow-up time points.
The SitFIT was perceived as a useful tool for self-monitoring of sedentary time. It has potential as a real-time self-monitoring device to reduce sedentary and increase upright time.
长时间不活动和久坐均与健康状况不佳相关。使用计步器进行实时反馈来自我监测步行情况，对于增加身体活动是有效的。本研究评估了一种新型口袋式久坐时间和身体活动实时自我监测设备（SitFIT）的可行性。
40名久坐不动的男性被平均随机分为两个干预组。为期4周，一组收到的SitFIT能提供步数以及久坐时间（躺/坐）的反馈；另一组收到的SitFIT能提供步数以及直立时间（站/走）的反馈。在基线、4周随访（T1）和12周（T2）随访时，使用activPAL监测仪评估久坐时间、站立时间、行走时间和步数的变化。在4周和12周后进行半结构化访谈。
两组均报告SitFIT是可接受且可用的，并将其视为减少久坐时间的激励工具。平均而言，参与者在T1时将久坐时间减少了7.8分钟/天（95%CI -55.4至39.7），在T2时减少了8.2分钟/天（95%CI -60.1至44.3）。他们在T1时将站立时间增加了23.2分钟/天（95%CI 4.0至42.5），在T2时增加了16.2分钟/天（95%CI -13.9至46.2）。行走时间在T1时增加了8.5分钟/天（95%CI 0.9至16.0），在T2时增加了9.0分钟/天（95%CI 0.5至17.5）。在两个随访时间点，两组之间均无差异。
SitFIT被认为是自我监测久坐时间的有用工具。它有潜力作为一种实时自我监测设备，以减少久坐时间并增加直立时间。
