Alternating sitting and standing increases the workplace energy expenditure of overweight adults

Alicia Ann Thorp, Bronwyn A. Kingwell, Coralie English, Louise Hammond, Parneet Sethi, Neville Owen, David W. Dunstan

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    Abstract

    Background: To determine whether alternating bouts of sitting and standing at work influences daily workplace energy expenditure (EE). Methods: Twenty-three overweight/obese office workers (mean ± SD; age: 48.2 ± 7.9 y, body mass index: 29.6 ± 4.0 kg/m2) undertook two 5-day experimental conditions in an equal, randomized order. Participants wore a "metabolic armband" (SenseWear Armband Mini) to estimate daily workplace EE (KJ/8 h) while working (1) in a seated work posture (SIT condition) or (2) alternating between a standing and seated work posture every 30 minutes using a sit-stand workstation (STAND-SIT condition). To assess the validity of the metabolic armband, a criterion measure of acute EE (KJ/min; indirect calorimetry) was performed on day 4 of each condition. Results: Standing to work acutely increased EE by 0.7 [95% CI 0.3-1.0] KJ/min (13%), relative to sitting (P =.002). Compared with indirect calorimetry, the metabolic armband provided a valid estimate of EE while standing to work (mean bias: 0.1 [-0.3 to 0.4] KJ/min) but modestly overestimated EE while sitting (P =.005). Daily workplace EE was greatest during the STAND-SIT condition (mean condition difference [95% CI]: 76 [8-144] KJ/8-h workday, P =.03). Conclusions: Intermittent standing at work can modestly increase daily workplace EE compared with seated work in overweight/obese office workers.

    Original languageEnglish
    Pages (from-to)24-29
    Number of pages6
    JournalJournal of Physical Activity & Health
    Volume13
    Issue number1
    DOIs
    Publication statusPublished - Jan 2016

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  • Cite this

    Thorp, A. A., Kingwell, B. A., English, C., Hammond, L., Sethi, P., Owen, N., & Dunstan, D. W. (2016). Alternating sitting and standing increases the workplace energy expenditure of overweight adults. Journal of Physical Activity & Health, 13(1), 24-29. https://doi.org/10.1123/jpah.2014-0420