Back to Search Start Over

Comparison between self-reported and accelerometer-derived measurements for classifying children and adolescents as physically active in Chile

Authors :
Nicolas Aguilar-Farias
Sebastian Miranda-Marquez
Marcelo Toledo-Vargas
Damian Chandia-Poblete
Source :
Cadernos de Saúde Pública, Vol 37, Iss 2 (2021)
Publication Year :
2021
Publisher :
Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, 2021.

Abstract

The aim of this study was to compare self-reported with two accelerometer-derived methods to classify Chilean children and adolescents as physically active. In total, 247 students wore an accelerometer on their hips during 7 consecutive days to classify them as physically active based on (1) daily accumulation of ≥ 60 minutes of moderate-to-vigorous physical activity (MVPA) on each of the seven days, and (2) average MVPA ≥ 60 minutes/day. Also, participants were classified as physically active if they reported being active for at least 60 minutes in all seven days. When using the accelerometer data, 0.8% were active in all seven days, while 10.5% recorded ≥ 60 minutes MVPA per day on average. Based on self-report, 7.2% were physically active. The agreement between self-reported and accelerometer estimations were poor. Important differences were observed between the self-reported and device-derived methods for classifying children and adolescents as physically active. When comparing them, some considerations should be taken. The findings suggest that these methods are not interchangeable. Therefore, if possible, they should be used as complementary measurements.

Details

Language :
English, Spanish; Castilian, Portuguese
ISSN :
16784464 and 0102311x
Volume :
37
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Cadernos de Saúde Pública
Publication Type :
Academic Journal
Accession number :
edsdoj.539c702b6cd84b91a71213ed6d0fdd29
Document Type :
article
Full Text :
https://doi.org/10.1590/0102-311x00240620