RESEARCH ARTICLE
Validation of the Portuguese Version of the International Physical Activity Questionnaire for Adolescents (IPAQA)
Vera Ferro-Lebres1, 2, Gustavo Silva1, Pedro Moreira1, 3, José Carlos Ribeiro1, *
Article Information
Identifiers and Pagination:
Year: 2017Volume: 10
Issue: Suppl-2, M4
First Page: 239
Last Page: 250
Publisher ID: TOSSJ-10-239
DOI: 10.2174/1875399X01710010239
Article History:
Received Date: 11/08/2017Revision Received Date: 29/11/2017
Acceptance Date: 4/12/2017
Electronic publication date: 29/12/2017
Collection year: 2017
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Background:
Questionnaires have been broadly used to assess physical activity in adolescents, however validation studies, although essential, are not always performed.
Objective:
The present work aims to determine the validity of the Portuguese version of the International Physical Activity Questionnaire for Adolescents against 3 axis Actigraph accelerometers.
Method:
A cross-sectional study was conducted, with a sample of 222 adolescents, with a mean age of 15.6 years (SD=2.05). After translation and cross cultural adaptation, data obtained from the questionnaire was correlated to accelerometers data, using Spearman correlation coefficient. Percentages of agreement of physical activity tertiles obtained by each method were tested using Cohen’s Kappa. Statistical analysis was performed for the total sample, per sex and per age group.
Results:
A significant correlation between the questionnaire and accelerometer was found for older adolescent boys, for total physical activity (ρ=0.372; P<0.01), and for moderate to vigorous physical activity (ρ=0.428; P<0.01) No correlations were found for the younger adolescents and girls. A 42.3% agreement was found for the questionnaire and accelerometer tertiles of total physical activity.
Conclusion:
The concurrent validity proved that the questionnaire might be valid only for older adolescent boys. The authors consider that whenever available physical activity objective measurements should be used instead of questionnaires.