Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls

Detalhes bibliográficos
Autor(a) principal: Leitão, Raquel
Data de Publicação: 2010
Outros Autores: Rodrigues, Luís Paulo, Neves, Luísa, Carvalho, Graça Simões de
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/10908
Resumo: There has been increasing research on the relationships between adolescent lifestyle and obesity in Portuguese youth. However, most studies have been cross-sectional. We aimed to investigate food habits, physical activity, sedentary behaviour and psychosocial characteristics in adolescents with different adiposity development trajectories. Anthropometric measurements were obtained in 288 children, firstly at age 9 and later at age 15. Lifestyle and psychosocial characteristics were assessed at age 15 by questionnaires. Percentage of body fat (%BF) derived from skinfolds was calculated. Obesity was defined by the cut-offs of 25%BF in boys and 30%BF in girls. Based on adiposity status at each assessment, four adiposity trajectories were identified: “never obese”, “remained obese”, “return to normal”, and “became obese”. Logistic regression modelling was used to examine associations between adolescent lifestyles characteristics and changes in obesity status. Gender differences were much less evident among adolescents who remained obese than in those who were never obese. The most consistent associations in the multivariate models were found for easiness/difficulty of finding new friends and for time spent with physical activity. Adolescents who reported finding it difficult to make new friends were more likely to become obese than those reporting it easy (OR=5.67; p=0.03), taking the group “never obese” as reference. Those who spent more time being physically active were less likely to become obese (OR=0.09; p=0.02) and were more likely to reverse obesity (OR=6.73; p=0.02) in comparison to the group “remained obese”. The results suggest that obese status attenuates adolescent lifestyle gender-related differences and reinforce the relevance of physical activity for both the prevention and treatment of obesity. Integrated strategies focusing on physical activity may be the key to effectively fight against obesity and also to foster adolescents’ psychosocial well-being.
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spelling Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girlsAdolescentsLifestyleObesityLongitudinal studyThere has been increasing research on the relationships between adolescent lifestyle and obesity in Portuguese youth. However, most studies have been cross-sectional. We aimed to investigate food habits, physical activity, sedentary behaviour and psychosocial characteristics in adolescents with different adiposity development trajectories. Anthropometric measurements were obtained in 288 children, firstly at age 9 and later at age 15. Lifestyle and psychosocial characteristics were assessed at age 15 by questionnaires. Percentage of body fat (%BF) derived from skinfolds was calculated. Obesity was defined by the cut-offs of 25%BF in boys and 30%BF in girls. Based on adiposity status at each assessment, four adiposity trajectories were identified: “never obese”, “remained obese”, “return to normal”, and “became obese”. Logistic regression modelling was used to examine associations between adolescent lifestyles characteristics and changes in obesity status. Gender differences were much less evident among adolescents who remained obese than in those who were never obese. The most consistent associations in the multivariate models were found for easiness/difficulty of finding new friends and for time spent with physical activity. Adolescents who reported finding it difficult to make new friends were more likely to become obese than those reporting it easy (OR=5.67; p=0.03), taking the group “never obese” as reference. Those who spent more time being physically active were less likely to become obese (OR=0.09; p=0.02) and were more likely to reverse obesity (OR=6.73; p=0.02) in comparison to the group “remained obese”. The results suggest that obese status attenuates adolescent lifestyle gender-related differences and reinforce the relevance of physical activity for both the prevention and treatment of obesity. Integrated strategies focusing on physical activity may be the key to effectively fight against obesity and also to foster adolescents’ psychosocial well-being.CIFPEC - Unidade de iInvestigação 644 da FCTCambridge University PressUniversidade do MinhoLeitão, RaquelRodrigues, Luís PauloNeves, LuísaCarvalho, Graça Simões de2010-092010-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://hdl.handle.net/1822/10908eng“Public Health Nutrition “. ISSN 1368-9800. 13 :9A (Sept. 2010) 169.1368-9800info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:56:06Zoai:repositorium.sdum.uminho.pt:1822/10908Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:45:43.017719Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
title Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
spellingShingle Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
Leitão, Raquel
Adolescents
Lifestyle
Obesity
Longitudinal study
title_short Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
title_full Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
title_fullStr Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
title_full_unstemmed Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
title_sort Obesity and adolescent lifestyles : a 6-year longitudinal study in Portuguese boys and girls
author Leitão, Raquel
author_facet Leitão, Raquel
Rodrigues, Luís Paulo
Neves, Luísa
Carvalho, Graça Simões de
author_role author
author2 Rodrigues, Luís Paulo
Neves, Luísa
Carvalho, Graça Simões de
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Leitão, Raquel
Rodrigues, Luís Paulo
Neves, Luísa
Carvalho, Graça Simões de
dc.subject.por.fl_str_mv Adolescents
Lifestyle
Obesity
Longitudinal study
topic Adolescents
Lifestyle
Obesity
Longitudinal study
description There has been increasing research on the relationships between adolescent lifestyle and obesity in Portuguese youth. However, most studies have been cross-sectional. We aimed to investigate food habits, physical activity, sedentary behaviour and psychosocial characteristics in adolescents with different adiposity development trajectories. Anthropometric measurements were obtained in 288 children, firstly at age 9 and later at age 15. Lifestyle and psychosocial characteristics were assessed at age 15 by questionnaires. Percentage of body fat (%BF) derived from skinfolds was calculated. Obesity was defined by the cut-offs of 25%BF in boys and 30%BF in girls. Based on adiposity status at each assessment, four adiposity trajectories were identified: “never obese”, “remained obese”, “return to normal”, and “became obese”. Logistic regression modelling was used to examine associations between adolescent lifestyles characteristics and changes in obesity status. Gender differences were much less evident among adolescents who remained obese than in those who were never obese. The most consistent associations in the multivariate models were found for easiness/difficulty of finding new friends and for time spent with physical activity. Adolescents who reported finding it difficult to make new friends were more likely to become obese than those reporting it easy (OR=5.67; p=0.03), taking the group “never obese” as reference. Those who spent more time being physically active were less likely to become obese (OR=0.09; p=0.02) and were more likely to reverse obesity (OR=6.73; p=0.02) in comparison to the group “remained obese”. The results suggest that obese status attenuates adolescent lifestyle gender-related differences and reinforce the relevance of physical activity for both the prevention and treatment of obesity. Integrated strategies focusing on physical activity may be the key to effectively fight against obesity and also to foster adolescents’ psychosocial well-being.
publishDate 2010
dc.date.none.fl_str_mv 2010-09
2010-09-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/10908
url http://hdl.handle.net/1822/10908
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv “Public Health Nutrition “. ISSN 1368-9800. 13 :9A (Sept. 2010) 169.
1368-9800
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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