Intervening to reduce workplace sitting time: How and when do changes to sitting time occur?

Stephens, Samantha K., Winkler, Elisabeth A. H., Trost, Stewart G., Dunstan, David W., Eakin, Elizabeth G., Chastin, Sebastien F. M. and Healy, Genevieve N. (2014) Intervening to reduce workplace sitting time: How and when do changes to sitting time occur?. British Journal of Sports Medicine, 48 13: 1037-1042. doi:10.1136/bjsports-2014-093524

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Author Stephens, Samantha K.
Winkler, Elisabeth A. H.
Trost, Stewart G.
Dunstan, David W.
Eakin, Elizabeth G.
Chastin, Sebastien F. M.
Healy, Genevieve N.
Title Intervening to reduce workplace sitting time: How and when do changes to sitting time occur?
Journal name British Journal of Sports Medicine   Check publisher's open access policy
ISSN 0306-3674
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1136/bjsports-2014-093524
Open Access Status File (Author Post-print)
Volume 48
Issue 13
Start page 1037
End page 1042
Total pages 6
Place of publication London, United Kingdom
Publisher BMJ Publishing Group
Collection year 2015
Language eng
Formatted abstract
Objective To investigate how and when changes in workplace sitting time occurred following a workplace intervention to inform evaluation of intervention success.

Method The 4-week Stand Up Comcare study (June–September 2011) aimed to reduce workplace sitting time via regularly interrupting and replacing sitting time throughout the day. Activity monitor (activPAL3) workplace data from control (n=22) and intervention participants (n=21) were analysed. Differences in the number and usual duration of sitting bouts were used to evaluate how change occurred. To examine when change occurred, intervention effects were compared by hour since starting work and hour of the workday. Change in workplace activity (sitting, standing, stepping) was examined to further inform alignment with intervention messages. Individual variability was examined in how and when the change occurred.

Results Overall, behavioural changes aligned with intervention aims. All intervention participants reduced total workplace sitting time, though there was wide individual variability observed (range −29 to −262 min per 8 h workday). On average, intervention participants reduced number of sitting bouts (−4.6 bouts (95% CI −10.1 to 1.0), p=0.106) and usual sitting bout duration (−5.6 min (95% CI −9.8 to −1.4, p=0.011)) relative to controls. Sitting time reductions were observed across the workday, though intervention effects varied by hour of the day (p=0.015). The intervention group successfully adopted the Stand Up and Sit Less intervention messages across the day.

Conclusion These analyses confirmed that this workplace intervention successfully modified sitting behaviour as intended (ie, fewer and shorter sitting bouts, with changes occurring throughout the day).
Keyword Activity monitoring
Behavioural change
Workplace sitting time
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Public Health Publications
School of Human Movement and Nutrition Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
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