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A cluster randomized controlled trial to reduce office workers' sitting time: Effect on productivity outcomes
Peterman, James E. Haly, Genevieve N. Winkler, Elisabeth A. H. Moodie, Marjory Eakin, Elizabeth Lawler, Sheleigh Owen, Neville Dunstan, David W. LaMontagne, Anthony D.
Peterman, James E.
Haly, Genevieve N.
Winkler, Elisabeth A. H.
Moodie, Marjory
Eakin, Elizabeth
Lawler, Sheleigh
Owen, Neville
Dunstan, David W.
LaMontagne, Anthony D.
Abstract
Objective: This study aimed to evaluate the impact of the Stand Up Victoria intervention – a multicomponent workplace intervention that successfully reduced workplace sitting – on productivity in the short- and longer-term. Methods: Desk-based workers [5–39 per worksite; 68% women; mean age 45.6 (standard deviation 9.4) years] were cluster randomized by office worksite to receive intervention (7 worksites, 136 workers) or control (7 worksites, 95 workers). The intervention used organizational-, environmental-, and individual-level approaches to address workplace sitting. Productivity outcomes were measured via the Health and Work Questionnaire (HWQ; 10 outcomes) and Work Limitations Questionnaire (WLQ; 5 outcomes), administered at 0 (baseline), 3 (initial), and 12 (long-term) months. Intervention effects were assessed by linear mixed models, accounting for repeated measures and clustering, baseline values, and potential confounders. Evaluable case and multiple imputation analyses were used. Results: At 12 months, trends for improvement were observed in the HWQ non-work satisfaction subscale (P=0.053) and stress item (P=0.086). Intervention effects on remaining outcomes for the HWQ were small and non-significant at both timepoints. At 3 months, intervention effects showed significant improvements in the WLQ mental demands subscale (P=0.043). At 12 months, intervention effects showed significant (P<0.05) small-to-moderate improvements in four WLQ outcomes (weighted total score, time-, mental-, and output demands), with physical demands showing a small significant worsening. Conclusions were robust to missing data assumptions. Conclusions: The intervention improved some measures of productivity at 12 months, providing important evidence to the business case supporting workplace sitting-reduction interventions.
Keywords
intervention, occupation, physical activity, RCT, sedentary, Stand Up Victoria, workplace
Date
2019
Type
Journal article
Journal
Scandinavian Journal of Work Environment and Health
Book
Volume
45
Issue
5
Page Range
475-484
Article Number
ACU Department
Mary MacKillop Institute for Health Research
Faculty of Health Sciences
Faculty of Health Sciences
Collections
Relation URI
Source URL
Event URL
Open Access Status
License
File Access
Controlled