Heterogeneity in the Energy Cost of Posture Maintenance during Standing Relative to Sitting: Phenotyping According to Magnitude and Time-Course

Jennifer L Miles-Chan, Delphine Sarafian, Jean-Pierre Montani, Yves Schutz and Abdul Dulloo

PLOS ONE, 2013, vol. 8, issue 5, 1-6

Abstract: Background: Reducing sitting-time may decrease risk of disease and increase life-span. In the search for approaches to reduce sitting-time, research often compares sitting to standing and ambulation, but the energetic cost of standing alone versus sitting is equivocal, with large variation in reported mean values (0% to >20% increase in energy expenditure (EE) during standing). Objective: To determine the magnitude and time-course of changes in EE and respiratory quotient (RQ) during steady-state standing versus sitting. Design: Min-by-min monitoring using a posture-adapted ventilated-hood indirect calorimetry system was conducted in 22 young adults with normal BMI during 10 min of steady-state standing versus sitting comfortably. Results: This study reveals three distinct phenotypes based on the magnitude and time-course of the EE response to steady-state standing. One-third of participants (8/22) showed little or no change in EE during standing relative to sitting (ΔEE

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0065827

DOI: 10.1371/journal.pone.0065827

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