학술논문
Evaluation of the usability of a mobile Digital Food Guide based on user perception/Avaliacao da usabilidade do Guia Alimentar Digital movel segundo a percepcao dos usuarios
Document Type
Academic Journal
Source
Ciência & Saúde Coletiva. May 1, 2014, Vol. 19 Issue 5, p1437, 10 p.
Subject
Language
Spanish; Castilian
ISSN
1413-8123
Abstract
Introducao Dados da Organizacao Mundial da Saude permitem estimar que mais de um bilhao e quinhentos milhoes de adultos estao acima do peso e que quinhentos milhoes destes sao clinicamente [...]
The use of digital technology in the form of health care apps has been on the increase. In the nutrition area, apps are now available with a view to lead to behavior change, helping individuals to reflect on their food choices and identify weak points in their dietary routine. The article seeks to evaluate user perception regarding the usability of the Digital Food Guide (DFG), which is a mobile smartphone app with guidelines on healthy eating. A cross-sectional study evaluated the user perception of the app using the Likert scale, built with 24 assertions organized in three dimensions of analysis: the DFG as an intuitive and self-explanatory tool; the DFG as a promoter of healthy food choices; and the DFG as a promoter of the transition to the appropriate weight. The instrument was assessed regarding its reliability through the split-half and validity method in two stages. The 22 assertions were validated; the reliability was 0.93; the average of the assertions in each dimension was 3.10; of the 80 respondents, 58.75% considered the implementation of the DFG to be positive. The application has good usability as perceived by users, considering analysis of the dimensions relating to its performance. Key words Food education, Biomedical technology, Instrument of perception, User satisfaction O uso da tecnologia digital na forma de aplicativos para cuidados em saude tem crescido; na area de nutricao estao disponiveis com o proposito de levar a mudanca de comportamento, auxiliando individuos a refletirem sobre escolhas alimentares e identificarem fragilidades na rotina alimentar. O artigo tem por objetivo avaliar a percepcao dos usuarios em relacao a usabilidade do Guia Alimentar Digital (GAD), aplicativo para celular smartphone, com diretrizes sobre alimentacao saudavel. Estudo transversal avaliou a percepcao de usuarios do aplicativo por meio de escala Likert, construida com 24 assercoes organizadas em tres dimensoes de analise: 1. GAD como ferramenta intuitiva e autoexplicativa; 2. GAD como promotor de escolhas alimentares saudaveis; 3. GAD como promotor da transicao para o peso adequado. O instrumento foi analisado quanto a confiabilidade pelo metodo split-half e validade em duas etapas. Foram validadas 22 assercoes; a confiabilidade foi de 0,93; a media de pontos das assercoes em cada dimensao foi 3,10; dos 80 respondentes, 58,75% considerou positiva a implementacao do GAD. O aplicativo apresenta boa usabilidade, segundo a percepcao dos usuarios, a considerar as analises das dimensoes referentes ao seu desempenho. Palavras-chave Educacao alimentar, Tecnologia biomedica, Instrumento de percepcao, Satisfacao do usuario
The use of digital technology in the form of health care apps has been on the increase. In the nutrition area, apps are now available with a view to lead to behavior change, helping individuals to reflect on their food choices and identify weak points in their dietary routine. The article seeks to evaluate user perception regarding the usability of the Digital Food Guide (DFG), which is a mobile smartphone app with guidelines on healthy eating. A cross-sectional study evaluated the user perception of the app using the Likert scale, built with 24 assertions organized in three dimensions of analysis: the DFG as an intuitive and self-explanatory tool; the DFG as a promoter of healthy food choices; and the DFG as a promoter of the transition to the appropriate weight. The instrument was assessed regarding its reliability through the split-half and validity method in two stages. The 22 assertions were validated; the reliability was 0.93; the average of the assertions in each dimension was 3.10; of the 80 respondents, 58.75% considered the implementation of the DFG to be positive. The application has good usability as perceived by users, considering analysis of the dimensions relating to its performance. Key words Food education, Biomedical technology, Instrument of perception, User satisfaction O uso da tecnologia digital na forma de aplicativos para cuidados em saude tem crescido; na area de nutricao estao disponiveis com o proposito de levar a mudanca de comportamento, auxiliando individuos a refletirem sobre escolhas alimentares e identificarem fragilidades na rotina alimentar. O artigo tem por objetivo avaliar a percepcao dos usuarios em relacao a usabilidade do Guia Alimentar Digital (GAD), aplicativo para celular smartphone, com diretrizes sobre alimentacao saudavel. Estudo transversal avaliou a percepcao de usuarios do aplicativo por meio de escala Likert, construida com 24 assercoes organizadas em tres dimensoes de analise: 1. GAD como ferramenta intuitiva e autoexplicativa; 2. GAD como promotor de escolhas alimentares saudaveis; 3. GAD como promotor da transicao para o peso adequado. O instrumento foi analisado quanto a confiabilidade pelo metodo split-half e validade em duas etapas. Foram validadas 22 assercoes; a confiabilidade foi de 0,93; a media de pontos das assercoes em cada dimensao foi 3,10; dos 80 respondentes, 58,75% considerou positiva a implementacao do GAD. O aplicativo apresenta boa usabilidade, segundo a percepcao dos usuarios, a considerar as analises das dimensoes referentes ao seu desempenho. Palavras-chave Educacao alimentar, Tecnologia biomedica, Instrumento de percepcao, Satisfacao do usuario