Validade e fidedignidade de uma escala de avaliação do apoio social para a atividade física

Abstract

OBJECTIVE:To assess the validity and reliability of the Brazilian version of the physical activity social support scale for adults. METHODS:The scale was applied in conjunction with a face-to-face multidimensional questionnaire in 1,461 individuals aged between 18 and 79 years, living in Curitiba, Southeastern Brazil, between April and July 2009. The questionnaire was submitted to validity (factorial and construct) and reliability testing (internal consistency and reproducibility). Reliability was observed with the use of internal consistency, Cronbach's alpha, test-retest procedure with a one-week interval (n = 74) and intraclass correlation coeffi cient. RESULTS:Factorial analysis resulted in four factors with eigenvalues between 4.29 and 1.39, which explained 82.8% of the total variance. Factors 1 and 2 included questions about social support from friends for moderate to vigorous physical activities and walking, respectively. Factors 3 and 4 were comprised of groups of social support from the family for moderate to vigorous physical activities and walking, respectively. Reproducibility showed an intraclass correlation coeffi cient between 0.63 and 0.80 and alpha internal consistency between 0.87 and 0.91. Construct validity was observed from the signifi cant association (p < 0.005) between scores of social support for walking and moderate to vigorous physical activities. CONCLUSIONS:The instrument tested showed psychometric characteristics that were adequate for use in adult Brazilians.

Perfil dos frequentadores e padrão de uso das academias ao ar livre em bairros de baixa e alta renda de Curitiba-PR

“…-"não" e "sim"). O apoio social foi avaliado com um instrumento adaptado 22 com três questões independentes sobre a frequência semanal com que algum familiar e amigo convidou, acompanhou ou incentivou o uso das AAL. As questões apresentavam três opções de resposta: "nunca" (0), "as vezes" (1) e "sempre" (2).…”

Atividade física associada ao ambiente urbano: um estudo com mulheres de três cidades litorâneas de Santa Catarina

“…Foi igualmente estimado o tempo sentado. d) Ambiente percebido: para a avaliação do ambiente percebido foi utilizada a versão adaptada da escala Neighborhood Environmental Walkability Scale (NEWS), para a atividade física a qual avalia as características do ambiente urbano (presença de locais para a prática de atividade física, segurança, características do ambiente percebido, oportunidades para a prática de atividade física e qualidade das ruas e calçadas e apoio social), adaptada por Reis et al 13 . Esta escala obteve resultados adequados de consistência interna, de validade e reprodutibilidade e já foi usada em estudos epidemiológicos com adultos e idosos na zona leste de São Paulo 6,7 .…”

Physical activity associated with urban environmental characteristics: A correlational study of active women of high socioeconomic status from Brazilian cities of Santa Catarina

“…The PA was classified into walking, moderate PA, moderate + vigorous, vigorous and total in minutes/day. d) Perceived environment: an adapted version of the Neighborhood Environmental Walkability Scale (NEWS) was used for the evaluation of the perceived environment, considering PA which evaluates the characteristics of the urban environment (the presence of places for the practice of PA, security, characteristics of the perceived environment, opportunities for the practice of PA, and the quality of streets, sidewalks, and social support), adapted by Reis, Reis, and Hallal (2011). Such scale obtained proper results for internal consistency, validity, and reproducibility, and it was already used in epidemiological studies with adults and the elderly from the Eastern area in São Paulo (Florindo, Salvador, Reis, & Guimarães, 2011;Salvador, Florindo, Reis, & Costa, 2009).…”