Longitudinal changes in sitting patterns, physical activity, and health outcomes in adolescents
Journal article
Contardo Ayala, Ana María, Salmon, Jo, Dunstan, David W., Arundell, Lauren, Parker, Kate and Timperio, Anna. (2019). Longitudinal changes in sitting patterns, physical activity, and health outcomes in adolescents. Children. 6(1), p. Article 2. https://doi.org/10.3390/children6010002
Authors | Contardo Ayala, Ana María, Salmon, Jo, Dunstan, David W., Arundell, Lauren, Parker, Kate and Timperio, Anna |
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Abstract | This study examined two-year changes in patterns of activity and associations with body mass index (BMI) and waist circumference (WC) among adolescents. Inclinometers (activPAL) assessed sitting, sitting bouts, standing, stepping, and breaks from sitting. ActiGraph-accelerometers assessed sedentary time (SED), light-intensity physical activity (LIPA, stratified as low- and high-LIPA), and moderate-to-vigorous physical activity (MVPA). Anthropometric measures were objectively assessed at baseline and self-reported at follow-up. Data from 324 and 67 participants were obtained at baseline and follow-up, respectively. Multilevel mixed-effects linear regression models examined changes over time, and associations between baseline values and BMI and WC at follow-up. There were significant increases in BMI (0.6 kg/m2) and durations of prolonged sitting (26.4 min/day) and SED (52 min/day), and significant decreases in stepping (−19 min/day), LIPA (−33 min/day), low-LIPA (−26 min/day), high-LIPA (−6.3 min/day), MVPA (−19 min/day), and the number of breaks/day (−8). High baseline sitting time was associated (p = 0.086) with higher BMI at follow-up. There were no significant associations between baseline sitting, prolonged sitting, LIPA, or MVPA with WC. Although changes in daily activity patterns were not in a favourable direction, there were no clear associations with BMI or WC. Research with larger sample sizes and more time points is needed. |
Keywords | sitting time; body mass index; waist circumference; activPAL; ActiGraph; adolescents |
Year | 2019 |
Journal | Children |
Journal citation | 6 (1), p. Article 2 |
Publisher | Multidisciplinary Digital Publishing Institute (MDPI AG) |
ISSN | 2227-9067 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/children6010002 |
PubMed ID | 30583608 |
Scopus EID | 2-s2.0-85068820327 |
PubMed Central ID | PMC6352106 |
Open access | Published as ‘gold’ (paid) open access |
Research or scholarly | Research |
Page range | 1-10 |
Funder | National Health and Medical Research Council (NHMRC) |
Publisher's version | License File Access Level Open |
Output status | Published |
Publication dates | |
Online | 23 Dec 2018 |
Publication process dates | |
Accepted | 18 Dec 2018 |
Deposited | 22 Feb 2022 |
Grant ID | NHMRC/1026216 |
NHMRC/1078360 | |
NHMRC/1057608 |
https://acuresearchbank.acu.edu.au/item/8x5xz/longitudinal-changes-in-sitting-patterns-physical-activity-and-health-outcomes-in-adolescents
Download files
Publisher's version
Ayala_2021_Longitudinal_changes_in_sitting_patterns_physical.pdf | |
License: CC BY 4.0 | |
File access level: Open |
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