Comparison of Objectively Measured and Self-reported Time Spent Sitting

Julie Lagersted-Olsen, M Korshøj, J Skotte, I G Carneiro, Karen Søgaard, A Holtermann

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Until recently, methods for objective quantification of sitting time have been lacking. The aim of this study was to validate self-reported measures against objectively measured total sitting time and longest continuous time with uninterrupted sitting during working hours, leisure time on workdays and leisuredays. Objective diurnal measurement of sitting time was obtained among 26 office workers with 2 accelerometers (ActiGraph GT3X+) for a 7-day period. Customized software (Acti4) was used to identify sitting time separated from other sedentary behaviours. Self-reported sitting time was obtained from a retrospective 7-day questionnaire. A generalized linear model showed the difference between the methods. No significant correlations were found between objective and self-reported sitting time (r
Original languageEnglish
JournalInternational Journal of Sports Medicine
Volume35
Issue number6
Pages (from-to)534-540
ISSN0172-4622
DOIs
Publication statusPublished - 2014

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