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Article

Feasibility of a real-time self-monitoring device for sitting less and moving more: a randomised controlled trial

Citation
Martin A, Adams JM, Bunn C, Gill JMR, Gray CM, Hunt K, Maxwell DJ, van der Ploeg HP, Wyke S & Mutrie N (2017) Feasibility of a real-time self-monitoring device for sitting less and moving more: a randomised controlled trial. BMJ Open Sport & Exercise Medicine, 3 (1), Art. No.: e000285. http://bmjopensem.bmj.com/content/3/1/e000285; https://doi.org/10.1136/bmjsem-2017-000285

Abstract
Objectives 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).Methods 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.Results 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.Conclusion 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.

Journal
BMJ Open Sport & Exercise Medicine: Volume 3, Issue 1

StatusPublished
Author(s)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
FundersEuropean Commission and Medical Research Council
Publication date30/04/2017
Publication date online11/10/2017
Date accepted by journal29/08/2017
URLhttp://hdl.handle.net/1893/27261
PublisherBMJ Specialist Journals
Publisher URLhttp://bmjopensem.bmj.com/content/3/1/e000285
ISSN2055-7647
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