Dataset Information

Validation of a smart chair and corresponding smartphone app as an objective measure of desk-based sitting.

ABSTRACT:

Objectives

This study evaluated the validity of a smart chair and corresponding smartphone app (chair&app) to measure sitting time and sitting interruptions against camera-derived observation and activPAL.

Methods

Belgian deskbound university employees (n = 28, 17 women, mean age 30 ± 7.5 years, mean BMI 22.1 ± 2.0 kg/m² ) were provided with the chair&app in three conditions: a controlled condition (following a prescribed protocol), a free-living condition (conducting usual office work for 2 hours), and an extended free-living condition (conducting usual office work for three consecutive days). Total sitting time and the number of sitting interruptions were compared between the chair&app and criterion measures (camera observation and activPAL). Criterion validity was assessed using mean differences (95% CI) and intra-class correlation coefficients (ICC; 95% CI).

Results

In the controlled condition, mean sitting time and number of sitting interruptions differed between chair&app and camera observation by 2.7 (-2.4, 7.9) minutes and -8.0 (-10.4, -5.6) interruptions, respectively. For the free-living condition, there was good agreement between chair&app and camera observation for both sitting time (ICC: 0.74; 0.28, 0.93) and sitting interruptions (ICC: 0.68; 0.10, 0.91). For the extended free-living condition, there was excellent agreement between chair&app and activPAL for sitting time (ICC: 0.89; 0.49, 0.97). Meanwhile, there was poor agreement between chair&app and activPAL for sitting interruptions (ICC: 0.38; -0.04, 0.70).

Conclusions

Chair&app generally provided reliable measures of desk-based sitting. Consequently, chair&app might be useful as a self-monitoring tool in the workplace context. Further research is needed to explore its usefulness in reducing adults' desk-based sitting.

SUBMITTER: Arrogi A

PROVIDER: S-EPMC6499358 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Publications

Validation of a smart chair and corresponding smartphone app as an objective measure of desk-based sitting.

Arrogi Anass A Boen Filip F Seghers Jan J

Journal of occupational health 20190101 1

<h4>Objectives</h4>This study evaluated the validity of a smart chair and corresponding smartphone app (chair&app) to measure sitting time and sitting interruptions against camera-derived observation and activPAL.<h4>Methods</h4>Belgian deskbound university employees (n = 28, 17 women, mean age 30 ± 7.5 years, mean BMI 22.1 ± 2.0 kg/m<sup>2</sup> ) were provided with the chair&app in three conditions: a controlled condition (following a prescribed protocol), a free-living condition (conducting u ...[more]

PMID: 30698337

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Dataset Information

Validation of a smart chair and corresponding smartphone app as an objective measure of desk-based sitting.

Objectives

Methods

Results

Conclusions

Publications

Validation of a smart chair and corresponding smartphone app as an objective measure of desk-based sitting.

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