RESUMO
BACKGROUND: Information and communication technology (ICT) has been used with increasing frequency for the assessment of diet and physical activity in health surveys. A number of Web-based questionnaires have been developed for children and adolescents. However, their usability characteristics have scarcely been reported, despite their potential importance for improving the feasibility and validity of ICT-based methods. OBJECTIVE: The objective of this study was to describe the usability evaluation of the Consumo Alimentar e Atividade Física de Escolares (CAAFE) questionnaire (Food Consumption and Physical Activity Questionnaire for schoolchildren), a new Web-based survey tool for the self-assessment of diet and physical activity by schoolchildren. METHODS: A total of 114 schoolchildren aged 6 to 12 years took part in questionnaire usability testing carried out in computer classrooms at five elementary schools in the city of Florianopolis, Brazil. Schoolchildren used a personal computer (PC) equipped with software for recording what is on the computer screen and the children's speech during usability testing. Quantitative and qualitative analyses took into account objective usability metrics such as error counts and time to complete a task. Data on the main difficulties in accomplishing the task and the level of satisfaction expressed by the children were assessed by the observers using a standardized form and interviews with the children. Descriptive statistics and content analysis were used to summarize both the quantitative and the qualitative aspects of the data obtained. RESULTS: The mean time for completing the questionnaire was 13.7 minutes (SD 3.68). Compared to the children in 2nd or 3rd grades, those in 4th or 5th grades spent less time completing the questionnaire (median 12.4 vs 13.3 minutes, P=.022), asked for help less frequently (median 0 vs 1.0 count, P=.005), had a lower error count (median 2.0 vs 8.0 count, P<.001), and obtained a higher overall performance score (median 73.0 vs 68.0, P=.005). Children with a PC at home spent less time completing the questionnaire (median 12.3 vs 14.9 minutes, P<.001), had a lower overall error count (median 2.0 vs 9.0 count, P=.03), and had a higher performance score (median 72.0 vs 64.0, P=.005) compared to the children without a PC at home. The most common difficulty in completing the questionnaire was in using the scroll bar. The majority of children reported a positive evaluation (liked a lot or liked) for the four design elements, which were evaluated. CONCLUSIONS: The results of the present study provided feedback to improve the final version of the CAAFE questionnaire. Quantitative data showed minor errors and system failures, while qualitative data indicated that, overall, the children enjoyed the CAAFE questionnaire. Grade levels and PC use must be taken into account in Web-based tools designed for children.
RESUMO
Este estudo analisou os hábitos de atividade física e lazer de 216 adolescentes estudantes de um centro federal de educação tecnológica de Santa Catarina. Os adolescentes foram avaliados através do Questionário de Atividades Físicas Habituais e do Questionário de Autoavaliação do Estilo de Vida. Os dados foram tratados com estatística descritiva e inferencial, teste t de Student e Quiquadrado. As atividades físico esportivas preferidas pelos adolescentes no lazer são os esportes coletivos (33,0%). Meninos preferem mais o futebol (44%), e meninas, a caminhada (35,7%). Mais da metade das atividades de lazer (56,8%) é de caráter sedentário, entretanto, os adolescentes ativos optam mais pelo lazer ativo que os sedentários(p=0,000).
This study aimed to investigate the physical activities and leisure habits of 216 adolescents from a federal center of technological education from Santa Catarina. Atividades Físicas Habituais questionnaire and Autoavaliação do Estilo de Vida questionnaire were used. Data were analyzed by descriptive and inferential statistics, t test and Chisquare test. At the leisure time, team sports were preferred by adolescents (33,3%). Most of boys prefer soccer (44%) and girls prefer to walk as aphysical exercise (35,7%). More than a half of leisure activities were characterized by sedentary type, however, active adolescents had more physical activities at the leisure time than sedentary adolescents (p=0,000).
Este estudio examinó los hábitos de actividad física y de actividades recreativas en 216 adolescentes estudiantes de uno centro federal de educación tecnológica de Santa Catarina. El Questionário de Atividades Físicas Habituais y el Questionário de Autoavaliação do Estilo de Vida fueron utilizados. Los datos fueron tratados conestadística descriptiva e inferencial, se utilizaron la prueba t de Student y Chicuadrado. Las actividades físico deportivas preferidas por los adolescentes en el tiempo libre son los deportes de equipo (33,0%). Los chicos prefieren más al fútbol (44%) y las niñas la caminata (35,7%). Más de la mitad de las actividades recreativas (56,8%) son sedentarias, pero los adolescentes activos eligen más actividades activas de lo que los sedentarios (p=0,000).
Assuntos
Humanos , Masculino , Feminino , Adolescente , Adolescente , Atividades de Lazer , Atividade MotoraRESUMO
Este estudo objetivou obter informações sobre o padrão de atividade física de escolares de sete a dez anos para subsidiar o desenvolvimento de um instrumento baseado em web, destinado a monitorar este comportamento com o uso do computador. Foram realizados seis grupos focais com professores de Educação Física (n = 37). As transcrições foram submetidas à análise qualitativa utilizando uma matriz temática que permitiu a identificação de três categorias: padrões de atividade física dos escolares; limitações do instrumento na versão papel e lápis (Questionário de Atividade Física do Dia Anterior); sugestões de melhorias para o instrumento baseado em web. As principais contribuições para o desenho do instrumento foram: o aumento do número de atividades representadas; inclusão de atividades sedentárias; segmentação do dia para auxiliar a recuperação das informações; melhoria da qualidade gráfica dos desenhos. As informações obtidas permitiram estabelecer as características necessárias para o instrumento proposto, contribuindo para o alcance de maiores níveis de validade de conteúdo e de processo de resposta.
This study aimed to obtain information on the physical activity patterns of schoolchildren aged 7-10 years to support the development of a web-based tool designed to monitor this behavior. Six focal groups were carried out with physical education teachers (n = 37). Thematic analyses were performed based on written transcripts. Three major categories were identified: schoolchildren physical activity patterns; limitations of the pencil and paper instrument format (Previous Day Physical Activity Questionnaire); and suggestions to improve the web based instrument. The main contributions for the instrument design were: increasing the number of physical activities presented in paper and pencil format; inclusion of sedentary activities; segmented day format in order to improve information recall; improvements in graphical design quality. Will be used along with researcher?s expertise as well as usability and validity tests in order to obtain a friendly and intelligible interface for 7 to 10 year old schoolchildren. Information gathered through focus groups allowed to establish the necessary characteristics for the proposed instrument, contributing to the achievement of higher levels of content validity and response process.
Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Inquéritos Epidemiológicos , Internet , Atividade Motora , Pesquisa Qualitativa , Inquéritos e QuestionáriosRESUMO
Este estudo teve como objetivo investigar a prática de atividade física associada a satisfação com o peso corporal na adolescência. A população deste estudo constitui-se de adolescentes de 13 a 19 anos, estudantes de um Centro Federal de Educação Tecnológica de Santa Catarina - Brasil. A constituição da amostra obedeceu a participação voluntária de 316 adolescentes. Para a coleta de dados três questionários foram utilizados. Os dados foram tratados com estatística descritiva e inferencial. Os resultados evidenciam que as meninas são significativamente mais insatisfeitas com o corpo do que os meninos. Observa-se que a atividade física associa-se com a satisfação corporal, neste caso, os adolescentes ativos mostram-se mais satisfeitos. O contrário é verdadeiro e há uma tendência dos adolescentes sedentários estarem insatisfeitos com o corpo, principalmente as meninas. Conclui-se que a prática de atividade física na adolescência apresenta-se como um mediador importante na formação de conceitos positivos sobre o corpo.
The aim of this study was to investigate physical activity practice associated with corporal satisfaction in adolescence. The population of this study was composed by adolescents of 13 to 19 years old, students of a Technological Education Federal Center in Santa Catarina Brazil. The sample was 316 adolescents who volunteered for the research. Three questionnaires were used for the survey. The data was analyzed with descriptive and inferential statistic. The results showed that girls were significantly more dissatisfied with their body than boys. It was also observed that physical activity was associated with corporal satisfaction and adolescents that practiced physical activity showed more corporal satisfaction. The opposite is true and there was a tendency that sedentary adolescents were dissatisfied with their body, mostly girls. The study concluded that physical activity practice in adolescence is an important behavior to build a positive perception of the body.