Cassiano Ricardo Rech

Validade e fidedignidade da escala de satisfação com a prática de atividade física em adultos

OBJECTIVE To analyze the validation, internal consistency and reliability of the satisfaction scale for performing physical activity among Brazilian adults. METHODS The satisfaction scale for the performance of physical activity was applied using a multidimensional questionnaire. Face-to-face interviews were performed with 1,461 subjects (63.7% females) who were at least 18 years in Curitiba, Southern Brazil from April 2009 to July 2009. The questionnaire was submitted to an analysis of its validity (factorial and construct) and reliability (internal consistency and temporal stability). The test-retest procedure was used to assess temporal stability after a one-week interval (n = 74). RESULTS The exploratory factor analysis yielded two main factors: satisfaction with the practice of walking during leisure-time and satisfaction with the practice of moderate or vigorous physical activity. These factors explained 29.3% of the variance for walking and 53.5% of the variance for moderate and vigorous physical activity. Alpha values of 0.91 and 0.88, respectively, indicated high internal consistency and two subscales. The scale items presented high agreement in the test-retest for both walking (71.7% to 81.1%) and moderate and vigorous physical activity (80.5% to 92.6%). These factors presented a significant correlation with time spent walking (minutes/week) (rho = 0.23; p < 0.001) and time spent performing moderate and vigorous physical activity (rho = 0.21; p < 0.001), which indicated the validation of the construct. CONCLUSIONS The proposed satisfaction scale for the performance of physical activity has been appropriately validated and exhibits internal consistency and reliability for Brazilian adults.OBJETIVO: Analizar la validez, consistencia interna y fidedignidad de la escala de satisfaccion con la practica de actividad fisica en adultos brasilenos. METODOS: La escala de satisfaccion con la practica de actividad fisica fue aplicada con cuestionario multidimensional cara a cara en 1.461 individuos (63,7% mujeres) con edad > 18 anos en Curitiba, Sur de Brasil, de abril a julio de 2009. El cuestionario fue sometido al analisis de validez (factorial y constructo) y fidedignidad (consistencia interna y estabilidad temporal). El procedimiento de test-retest, con una semana de intervalo (n=74), fue empleado para verificar la estabilidad temporal. RESULTADOS: El analisis factorial exploratorio presento dos factores: satisfaccion con la practica de caminada en el tiempo libre y satisfaccion con la practica de actividad fisica moderada o vigorosa. Los factores explicaron 29,3% de la varianza de la caminada y 53,5% de actividad fisica moderada o vigorosa. Valores de α=0,91 y 0,88, respectivamente, indican elevada consistencia interna y dos subescalas. Los itens de la escala presentaron elevada concordancia en el test-retest tanto para caminada (71,7% a 81,1%) como para actividad fisica moderada o vigorosa (80,5% a 92,6%). Los factores presentaron correlacion significativa con el tiempo gastado en caminada (min/semana) (rho=0,23; p<0,001) y en actividad fisica moderada o vigorosa (rho=0,21; p<0,001), indicando la validez del constructo del instrumento. CONCLUSIONES: La escala de satisfaccion con la practica de actividad fisica propuesta presenta validez, consistencia interna y fidedignidad adecuadas para aplicacion en adultos brasilenos.

Autoeficácia e atividade física em adolescentes de Curitiba, Paraná, Brasil

Este trabalho teve o objetivo de analisar a associacao entre atividade fisica e autoeficacia em adolescentes. Realizou-se um estudo inquerito de base escolar com 1.698 adolescentes de Curitiba, Parana, Brasil. A atividade fisica foi avaliada segundo frequencia semanal (dias/semana) de pratica de atividade fisica de intensidade moderada ou vigorosa. A autoeficacia foi analisada segundo a soma de uma escala composta por dez itens. A associacao entre autoeficacia e atividade fisica foi testada pela regressao de Poisson (p < 0,05), estratificada por sexo. Entre os meninos, apenas elevada autoeficacia foi associada com todas as categorias de atividade fisica (p < 0,001), enquanto para as meninas niveis moderados e elevados de autoeficacia foram associados com todas as categorias de atividade fisica (p < 0,001). Conclui-se que a autoeficacia tem associacao positiva com atividade fisica entre adolescentes, no entanto esta relacao e mais consistente entre as meninas. Este e um aspecto importante para o delineamento de intervencoes para a promocao de atividade fisica nesse grupo populacional.This study aimed to examine the association between physical activity and self-efficacy in adolescents. A school-based survey was conducted with 1,698 adolescents from Curitiba, Paraná State, Brazil. Physical activity was evaluated as weekly frequency (days per week) of moderate or vigorous physical activity. Self-efficacy was analyzed as the sum of a 10-item scale. The association between self-efficacy and physical activity was tested by Poisson regression (p < 0.05), stratified by gender. Among boys, only high self-efficacy was associated with all categories of physical activity (p < 0.001), while for girls moderate and high levels of self-efficacy were associated with all categories of physical activity (p < 0.001). In conclusion, self-efficacy showed a positive association with physical activity in adolescents, although the relationship was more consistent in girls. The finding is important for designing interventions to promote physical activity in this age group.

Validation and reliability of the satisfaction scale for physical activity in adults

OBJECTIVE To analyze the validation, internal consistency and reliability of the satisfaction scale for performing physical activity among Brazilian adults. METHODS The satisfaction scale for the performance of physical activity was applied using a multidimensional questionnaire. Face-to-face interviews were performed with 1,461 subjects (63.7% females) who were at least 18 years in Curitiba, Southern Brazil from April 2009 to July 2009. The questionnaire was submitted to an analysis of its validity (factorial and construct) and reliability (internal consistency and temporal stability). The test-retest procedure was used to assess temporal stability after a one-week interval (n = 74). RESULTS The exploratory factor analysis yielded two main factors: satisfaction with the practice of walking during leisure-time and satisfaction with the practice of moderate or vigorous physical activity. These factors explained 29.3% of the variance for walking and 53.5% of the variance for moderate and vigorous physical activity. Alpha values of 0.91 and 0.88, respectively, indicated high internal consistency and two subscales. The scale items presented high agreement in the test-retest for both walking (71.7% to 81.1%) and moderate and vigorous physical activity (80.5% to 92.6%). These factors presented a significant correlation with time spent walking (minutes/week) (rho = 0.23; p < 0.001) and time spent performing moderate and vigorous physical activity (rho = 0.21; p < 0.001), which indicated the validation of the construct. CONCLUSIONS The proposed satisfaction scale for the performance of physical activity has been appropriately validated and exhibits internal consistency and reliability for Brazilian adults.OBJETIVO: Analizar la validez, consistencia interna y fidedignidad de la escala de satisfaccion con la practica de actividad fisica en adultos brasilenos. METODOS: La escala de satisfaccion con la practica de actividad fisica fue aplicada con cuestionario multidimensional cara a cara en 1.461 individuos (63,7% mujeres) con edad > 18 anos en Curitiba, Sur de Brasil, de abril a julio de 2009. El cuestionario fue sometido al analisis de validez (factorial y constructo) y fidedignidad (consistencia interna y estabilidad temporal). El procedimiento de test-retest, con una semana de intervalo (n=74), fue empleado para verificar la estabilidad temporal. RESULTADOS: El analisis factorial exploratorio presento dos factores: satisfaccion con la practica de caminada en el tiempo libre y satisfaccion con la practica de actividad fisica moderada o vigorosa. Los factores explicaron 29,3% de la varianza de la caminada y 53,5% de actividad fisica moderada o vigorosa. Valores de α=0,91 y 0,88, respectivamente, indican elevada consistencia interna y dos subescalas. Los itens de la escala presentaron elevada concordancia en el test-retest tanto para caminada (71,7% a 81,1%) como para actividad fisica moderada o vigorosa (80,5% a 92,6%). Los factores presentaron correlacion significativa con el tiempo gastado en caminada (min/semana) (rho=0,23; p<0,001) y en actividad fisica moderada o vigorosa (rho=0,21; p<0,001), indicando la validez del constructo del instrumento. CONCLUSIONES: La escala de satisfaccion con la practica de actividad fisica propuesta presenta validez, consistencia interna y fidedignidad adecuadas para aplicacion en adultos brasilenos.

Semantic, item, and conceptual equivalence of the brazilian version of the Neighborhood Environment Walkability Scale for Youth (NEWS-Y)

The objective of this study was to describe the process of translation and cultural adaptation of the Brazilian version of the Neighborhood Environment Walkability Scale for Youth (NEWS-Y). The original and the Portuguese versions were independently translated and back-translated into English. An expert panel performed semantic analysis and conceptual adaptations. The translated version of the NEWS-Y was applied to a sample of eight adolescents and showed adequate understanding. After minor changes identified in the translation processes, the expert panel considered the Brazilian version of the NEWS-Y semantically and conceptually equivalent. The translated version of the NEWS-Y required a few adjustments to ensure conceptual, item, and semantic adaptation. Further studies are recommended to examine other steps in the cross-cultural adaptation of the Portuguese-language NEWS-Y version in the Brazilian context.El objetivo de este estudio fue describir el proceso de adaptacion y traduccion cultural de la version brasilena de la escala del cuestionario Neighborhood Environment Walkability Scale for Youth (NEWS-Y). Se llevo a cabo de forma independiente traducido al portugues desde la version original de la NEWS-Y y sus traducciones de nuevo el ingles. La adaptacion del analisis semantico y conceptual se realizo por un grupo de expertos. La version traducida de la muestra NEWS-Y se aplico a ocho adolescentes de ambos sexos y se presenta facil de entender. Tras cambios menores identificados en los procesos de traduccion, el grupo de expertos considero que la version en portugues de la NEWS-Y se mostro semantica y conceptual adaptada. La version traducida de la NEWS-Y necesita algunos ajustes para garantizar la adaptacion de los elementos conceptuales y semanticos. Se sugiere que se hagan nuevos estudios para examinar otros pasos de la adaptacion transcultural de la version de la NEWS-Y en portugues para el contexto brasileno.

Equivalência semântica, de itens e conceitual da versão brasileira do Neighborhood Environment Walkability Scale for Youth (NEWS-Y)

The objective of this study was to describe the process of translation and cultural adaptation of the Brazilian version of the Neighborhood Environment Walkability Scale for Youth (NEWS-Y). The original and the Portuguese versions were independently translated and back-translated into English. An expert panel performed semantic analysis and conceptual adaptations. The translated version of the NEWS-Y was applied to a sample of eight adolescents and showed adequate understanding. After minor changes identified in the translation processes, the expert panel considered the Brazilian version of the NEWS-Y semantically and conceptually equivalent. The translated version of the NEWS-Y required a few adjustments to ensure conceptual, item, and semantic adaptation. Further studies are recommended to examine other steps in the cross-cultural adaptation of the Portuguese-language NEWS-Y version in the Brazilian context.El objetivo de este estudio fue describir el proceso de adaptacion y traduccion cultural de la version brasilena de la escala del cuestionario Neighborhood Environment Walkability Scale for Youth (NEWS-Y). Se llevo a cabo de forma independiente traducido al portugues desde la version original de la NEWS-Y y sus traducciones de nuevo el ingles. La adaptacion del analisis semantico y conceptual se realizo por un grupo de expertos. La version traducida de la muestra NEWS-Y se aplico a ocho adolescentes de ambos sexos y se presenta facil de entender. Tras cambios menores identificados en los procesos de traduccion, el grupo de expertos considero que la version en portugues de la NEWS-Y se mostro semantica y conceptual adaptada. La version traducida de la NEWS-Y necesita algunos ajustes para garantizar la adaptacion de los elementos conceptuales y semanticos. Se sugiere que se hagan nuevos estudios para examinar otros pasos de la adaptacion transcultural de la version de la NEWS-Y en portugues para el contexto brasileno.

Self-efficacy and physical activity in adolescents in Curitiba, Paraná State, Brazil

Este trabalho teve o objetivo de analisar a associacao entre atividade fisica e autoeficacia em adolescentes. Realizou-se um estudo inquerito de base escolar com 1.698 adolescentes de Curitiba, Parana, Brasil. A atividade fisica foi avaliada segundo frequencia semanal (dias/semana) de pratica de atividade fisica de intensidade moderada ou vigorosa. A autoeficacia foi analisada segundo a soma de uma escala composta por dez itens. A associacao entre autoeficacia e atividade fisica foi testada pela regressao de Poisson (p < 0,05), estratificada por sexo. Entre os meninos, apenas elevada autoeficacia foi associada com todas as categorias de atividade fisica (p < 0,001), enquanto para as meninas niveis moderados e elevados de autoeficacia foram associados com todas as categorias de atividade fisica (p < 0,001). Conclui-se que a autoeficacia tem associacao positiva com atividade fisica entre adolescentes, no entanto esta relacao e mais consistente entre as meninas. Este e um aspecto importante para o delineamento de intervencoes para a promocao de atividade fisica nesse grupo populacional.This study aimed to examine the association between physical activity and self-efficacy in adolescents. A school-based survey was conducted with 1,698 adolescents from Curitiba, Paraná State, Brazil. Physical activity was evaluated as weekly frequency (days per week) of moderate or vigorous physical activity. Self-efficacy was analyzed as the sum of a 10-item scale. The association between self-efficacy and physical activity was tested by Poisson regression (p < 0.05), stratified by gender. Among boys, only high self-efficacy was associated with all categories of physical activity (p < 0.001), while for girls moderate and high levels of self-efficacy were associated with all categories of physical activity (p < 0.001). In conclusion, self-efficacy showed a positive association with physical activity in adolescents, although the relationship was more consistent in girls. The finding is important for designing interventions to promote physical activity in this age group.

Equivalencia semántica y conceptual de la versión brasileña de Neighborhood Environment Walkability Scale for Youth (NEWS-Y)

The objective of this study was to describe the process of translation and cultural adaptation of the Brazilian version of the Neighborhood Environment Walkability Scale for Youth (NEWS-Y). The original and the Portuguese versions were independently translated and back-translated into English. An expert panel performed semantic analysis and conceptual adaptations. The translated version of the NEWS-Y was applied to a sample of eight adolescents and showed adequate understanding. After minor changes identified in the translation processes, the expert panel considered the Brazilian version of the NEWS-Y semantically and conceptually equivalent. The translated version of the NEWS-Y required a few adjustments to ensure conceptual, item, and semantic adaptation. Further studies are recommended to examine other steps in the cross-cultural adaptation of the Portuguese-language NEWS-Y version in the Brazilian context.El objetivo de este estudio fue describir el proceso de adaptacion y traduccion cultural de la version brasilena de la escala del cuestionario Neighborhood Environment Walkability Scale for Youth (NEWS-Y). Se llevo a cabo de forma independiente traducido al portugues desde la version original de la NEWS-Y y sus traducciones de nuevo el ingles. La adaptacion del analisis semantico y conceptual se realizo por un grupo de expertos. La version traducida de la muestra NEWS-Y se aplico a ocho adolescentes de ambos sexos y se presenta facil de entender. Tras cambios menores identificados en los procesos de traduccion, el grupo de expertos considero que la version en portugues de la NEWS-Y se mostro semantica y conceptual adaptada. La version traducida de la NEWS-Y necesita algunos ajustes para garantizar la adaptacion de los elementos conceptuales y semanticos. Se sugiere que se hagan nuevos estudios para examinar otros pasos de la adaptacion transcultural de la version de la NEWS-Y en portugues para el contexto brasileno.

La autoeficacia y la actividad física en adolescentes de Curitiba, Paraná, Brasil

Este trabalho teve o objetivo de analisar a associacao entre atividade fisica e autoeficacia em adolescentes. Realizou-se um estudo inquerito de base escolar com 1.698 adolescentes de Curitiba, Parana, Brasil. A atividade fisica foi avaliada segundo frequencia semanal (dias/semana) de pratica de atividade fisica de intensidade moderada ou vigorosa. A autoeficacia foi analisada segundo a soma de uma escala composta por dez itens. A associacao entre autoeficacia e atividade fisica foi testada pela regressao de Poisson (p < 0,05), estratificada por sexo. Entre os meninos, apenas elevada autoeficacia foi associada com todas as categorias de atividade fisica (p < 0,001), enquanto para as meninas niveis moderados e elevados de autoeficacia foram associados com todas as categorias de atividade fisica (p < 0,001). Conclui-se que a autoeficacia tem associacao positiva com atividade fisica entre adolescentes, no entanto esta relacao e mais consistente entre as meninas. Este e um aspecto importante para o delineamento de intervencoes para a promocao de atividade fisica nesse grupo populacional.This study aimed to examine the association between physical activity and self-efficacy in adolescents. A school-based survey was conducted with 1,698 adolescents from Curitiba, Paraná State, Brazil. Physical activity was evaluated as weekly frequency (days per week) of moderate or vigorous physical activity. Self-efficacy was analyzed as the sum of a 10-item scale. The association between self-efficacy and physical activity was tested by Poisson regression (p < 0.05), stratified by gender. Among boys, only high self-efficacy was associated with all categories of physical activity (p < 0.001), while for girls moderate and high levels of self-efficacy were associated with all categories of physical activity (p < 0.001). In conclusion, self-efficacy showed a positive association with physical activity in adolescents, although the relationship was more consistent in girls. The finding is important for designing interventions to promote physical activity in this age group.

Validez y fidedignidad de la escala de satisfacción con la práctica de actividad física en adultos

OBJECTIVE To analyze the validation, internal consistency and reliability of the satisfaction scale for performing physical activity among Brazilian adults. METHODS The satisfaction scale for the performance of physical activity was applied using a multidimensional questionnaire. Face-to-face interviews were performed with 1,461 subjects (63.7% females) who were at least 18 years in Curitiba, Southern Brazil from April 2009 to July 2009. The questionnaire was submitted to an analysis of its validity (factorial and construct) and reliability (internal consistency and temporal stability). The test-retest procedure was used to assess temporal stability after a one-week interval (n = 74). RESULTS The exploratory factor analysis yielded two main factors: satisfaction with the practice of walking during leisure-time and satisfaction with the practice of moderate or vigorous physical activity. These factors explained 29.3% of the variance for walking and 53.5% of the variance for moderate and vigorous physical activity. Alpha values of 0.91 and 0.88, respectively, indicated high internal consistency and two subscales. The scale items presented high agreement in the test-retest for both walking (71.7% to 81.1%) and moderate and vigorous physical activity (80.5% to 92.6%). These factors presented a significant correlation with time spent walking (minutes/week) (rho = 0.23; p < 0.001) and time spent performing moderate and vigorous physical activity (rho = 0.21; p < 0.001), which indicated the validation of the construct. CONCLUSIONS The proposed satisfaction scale for the performance of physical activity has been appropriately validated and exhibits internal consistency and reliability for Brazilian adults.OBJETIVO: Analizar la validez, consistencia interna y fidedignidad de la escala de satisfaccion con la practica de actividad fisica en adultos brasilenos. METODOS: La escala de satisfaccion con la practica de actividad fisica fue aplicada con cuestionario multidimensional cara a cara en 1.461 individuos (63,7% mujeres) con edad > 18 anos en Curitiba, Sur de Brasil, de abril a julio de 2009. El cuestionario fue sometido al analisis de validez (factorial y constructo) y fidedignidad (consistencia interna y estabilidad temporal). El procedimiento de test-retest, con una semana de intervalo (n=74), fue empleado para verificar la estabilidad temporal. RESULTADOS: El analisis factorial exploratorio presento dos factores: satisfaccion con la practica de caminada en el tiempo libre y satisfaccion con la practica de actividad fisica moderada o vigorosa. Los factores explicaron 29,3% de la varianza de la caminada y 53,5% de actividad fisica moderada o vigorosa. Valores de α=0,91 y 0,88, respectivamente, indican elevada consistencia interna y dos subescalas. Los itens de la escala presentaron elevada concordancia en el test-retest tanto para caminada (71,7% a 81,1%) como para actividad fisica moderada o vigorosa (80,5% a 92,6%). Los factores presentaron correlacion significativa con el tiempo gastado en caminada (min/semana) (rho=0,23; p<0,001) y en actividad fisica moderada o vigorosa (rho=0,21; p<0,001), indicando la validez del constructo del instrumento. CONCLUSIONES: La escala de satisfaccion con la practica de actividad fisica propuesta presenta validez, consistencia interna y fidedignidad adecuadas para aplicacion en adultos brasilenos.