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Changing Sedentary Behavior in the Office: A Randomised Controlled Trial Comparing the Effect of Affective, Instrumental, and Self‐Regulatory Messaging on Sitting
Author(s) -
Lithopoulos Alexander,
Kaushal Navin,
Beauchamp Mark R.,
Conner Mark,
Bruijn GertJan,
Latimer-Cheung Amy E.,
Rhodes Ryan E.
Publication year - 2020
Publication title -
applied psychology: health and well‐being
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.276
H-Index - 31
eISSN - 1758-0854
pISSN - 1758-0846
DOI - 10.1111/aphw.12202
Subject(s) - sitting , psychological intervention , sedentary behavior , randomized controlled trial , baseline (sea) , physical therapy , psychology , self monitoring , health benefits , medicine , physical activity , social psychology , psychiatry , oceanography , surgery , pathology , geology , traditional medicine
Background Although avoiding sedentary behavior has many health benefits, adults often sit for long periods at work. The purpose of this study was to compare affective attitude, instrumental attitude, and self‐regulation messaging interventions on sitting in the workplace. Methods Using a cluster randomised controlled trial design, participants ( N = 116) were assigned (by workplace) to: (a) instrumental, (b) affective, (c) self‐regulation, or (d) control (nutrition information) groups. Measurements were taken online at baseline, 4 weeks, 8 weeks, and 12 weeks post‐baseline. The interventions comprised three presentations delivered following baseline, week 4, and week 8 assessments. The primary outcome was self‐reported average hours of sitting per day at work (registered trial number: NCT04082624). Results Controlling for baseline sitting, overall, the affective group sat for less time than the instrumental and self‐regulation groups. Also, at week 4, the affective group sat for less time than the instrumental and self‐regulation groups and, at week 8, the affective group sat for less time than the self‐regulation and control groups. There were no differences between the groups at week 12. Conclusions This investigation showed that workplace interventions targeting affective attitude can lead to less sitting time in the short term. Future research should explore additional strategies to minimise sedentary behavior in the long term.