TY - JOUR
T1 - Desenvolvimento e validação de um questionário para mensurar fatores associados à atividade física em adolescents
AU - de Farias, José Cazuza
AU - Lopes, Adair da Silva
AU - Reis, Rodrigo Siqueira
AU - do Nascimento, Juarez Vieira
AU - Borgatto, Adriano Ferreti
AU - Hallal, Pedro Curi
N1 - Funding Information:
Funding. The AGES-Reykjavik Study was supported by the Icelandic Heart Association, Intramural Research Program at the National Institute on Aging (grants N01-AG-12100 and HHSN271201200022C), the Althingi (the Icelandic Parliament), and the Icelandic Centre for Research (RANNIS) (grant 141101-051). T.T.v.S. is supported by a Veni research grant (916.19. 074) from the Netherlands Organisation for Scientific Research (NWO) and the Netherlands Organisation for Health Research and Development (ZonMw) and by a Dutch Heart Foundation research grant (2018T025).
PY - 2011
Y1 - 2011
N2 - Objectives: to develop a questionnaire to measure factors associated with physical activity (PA) in adolescents and analyze its reliability and validity. Methods: a total of 248 adolescents from 14 to 19 years old took part in this study. The factors associated with PA measured were: attitude, self-efficacy, social support of PA and perceived environment. Cronbach's alpha (α) and intraclass correlation coefficients (ICC) were used to test reliability, and exploratory factor analysis to evaluate validity. Results: attitude was measured as a single factor (attitude: α=0.76, ICC=0.89); self-efficacy consisted of two factors: resources for PA (α=0.76, ICC=0.75) and social support and motives for engaging in PA (α=0.76, ICC=0.67); social support was measured as two factors: support for PA from friends (α=0.90, ICC=0.89) and support for PA from parents (α= 0.81, ICC=0.91); and the environment was measured as three factors: access to and attractiveness of places to engage in PA (α=0.69, ICC=0.82), security/safety when engaging in PA (α=0.73, ICC=0.67), and general infrastructure of the neighborhood (α=0.70, ICC=0.75). Conclusions: the questionnaire exhibited satisfactory validity and reliability and can be recommended for studies investigating adolescents.
AB - Objectives: to develop a questionnaire to measure factors associated with physical activity (PA) in adolescents and analyze its reliability and validity. Methods: a total of 248 adolescents from 14 to 19 years old took part in this study. The factors associated with PA measured were: attitude, self-efficacy, social support of PA and perceived environment. Cronbach's alpha (α) and intraclass correlation coefficients (ICC) were used to test reliability, and exploratory factor analysis to evaluate validity. Results: attitude was measured as a single factor (attitude: α=0.76, ICC=0.89); self-efficacy consisted of two factors: resources for PA (α=0.76, ICC=0.75) and social support and motives for engaging in PA (α=0.76, ICC=0.67); social support was measured as two factors: support for PA from friends (α=0.90, ICC=0.89) and support for PA from parents (α= 0.81, ICC=0.91); and the environment was measured as three factors: access to and attractiveness of places to engage in PA (α=0.69, ICC=0.82), security/safety when engaging in PA (α=0.73, ICC=0.67), and general infrastructure of the neighborhood (α=0.70, ICC=0.75). Conclusions: the questionnaire exhibited satisfactory validity and reliability and can be recommended for studies investigating adolescents.
KW - Motor activity
KW - Questionnaires
KW - Reproducibility of results
KW - Validity of tests
UR - http://www.scopus.com/inward/record.url?scp=80053944244&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053944244&partnerID=8YFLogxK
U2 - 10.1590/S1519-38292011000300011
DO - 10.1590/S1519-38292011000300011
M3 - Article
AN - SCOPUS:80053944244
SN - 1519-3829
VL - 11
SP - 301
EP - 312
JO - Revista Brasileira de Saude Materno Infantil
JF - Revista Brasileira de Saude Materno Infantil
IS - 3
ER -