Wearable Cameras Reveal Large Intra-Individual Variability in Timing of Eating among Young Adults

Leanne Wang; Virginia Chan; Margaret Allman-Farinelli; Alyse Davies; Lyndal Wellard-Cole; Anna Rangan

doi:10.3390/nu14204349

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Wearable Cameras Reveal Large Intra-Individual Variability in Timing of Eating among Young Adults

Journal article

Open access

Peer reviewed

Wearable Cameras Reveal Large Intra-Individual Variability in Timing of Eating among Young Adults

Leanne Wang, Virginia Chan, Margaret Allman-Farinelli, Alyse Davies, Lyndal Wellard-Cole and Anna Rangan

Nutrients, Vol.14(20), pp.1-14

2022

DOI: https://doi.org/10.3390/nu14204349

PMID: 36297030

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Abstract

meal timing

variability

wearable camera

young adults

nutrition

eating occasion

food consumption

eating window

intra-individual variability

Studies have shown that young adults follow less structured eating patterns compared with older cohorts. This may have implications for dietary assessment methods which rely on memory and structured meal patterns. Our aim was to describe the intra-individual variation of eating times in young adults aged 18−30 years. Participants (n = 41) wore an Autographer camera that captured first-person perspective images every 30 s for three consecutive days. All images were timestamped and those showing food consumption were used to extract data such as the timing of the first and last eating occasions (EOs), number of EOs per day, and length of eating window. Intra-individual variability was calculated from these data using composite phase deviation (CPD) and coefficient of variation (CV). The number of individuals with high or very high variability was 28 and 18 for timing of first and last EOs, respectively (CPD > 1.70), and 27 and 17 for number of EOs and eating window, respectively (CV > 20%). In this sample of young adults, the lack of regularity in eating patterns should be considered when selecting a dietary assessment method.

Details

Title: Wearable Cameras Reveal Large Intra-Individual Variability in Timing of Eating among Young Adults
Authors: Leanne Wang - The University of Sydney
Virginia Chan - The University of Sydney
Margaret Allman-Farinelli - The University of Sydney
Alyse Davies - The University of Sydney
Lyndal Wellard-Cole - The University of Sydney
Anna Rangan (Corresponding Author) - The University of Sydney
Publication details: Nutrients, Vol.14(20), pp.1-14
Publisher: MDPI AG
Date published: 2022
DOI: 10.3390/nu14204349
ISSN: 2072-6643
PMID: 36297030
Copyright note: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Data Availability: The data presented in this study are available on request from the corresponding author subject to ethical approval.
Grants: Quantifying intake of food prepared outside home during emerging adulthood, LP150100831, Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: School of Health - Nutrition & Dietetics
Language: English
Record Identifier: 991104335602621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Nutrition & Dietetics

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