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A Virtual Reality Food Court to Study Meal Choices in Youth: Design and Assessment of Usability.
Allman-Farinelli, Margaret; Ijaz, Kiran; Tran, Helen; Pallotta, Hermes; Ramos, Sidney; Liu, Junya; Wellard-Cole, Lyndal; Calvo, Rafael A.
Afiliação
  • Allman-Farinelli M; Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, University of Sydney, Australia.
  • Ijaz K; School of Electrical and Information Engineering, University of Sydney, Sydney, Australia.
  • Tran H; Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, University of Sydney, Australia.
  • Pallotta H; Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, University of Sydney, Australia.
  • Ramos S; School of Electrical and Information Engineering, University of Sydney, Sydney, Australia.
  • Liu J; Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, University of Sydney, Australia.
  • Wellard-Cole L; Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, University of Sydney, Australia.
  • Calvo RA; School of Electrical and Information Engineering, University of Sydney, Sydney, Australia.
JMIR Form Res ; 3(1): e12456, 2019 Jan 09.
Article em En | MEDLINE | ID: mdl-30684440
BACKGROUND: Regular consumption of take-out and fast foods with sugary drinks is associated with poor quality diets and higher prevalence of obesity. Among the settings where such food is consumed is the food court typically found in shopping malls prominent in many countries. OBJECTIVE: The objective of this research was to develop a virtual reality food court that could be used to test food environmental interventions, such as taxation, and ultimately to facilitate the selection of healthier food choices. METHODS: Fourteen food courts in Sydney, Australia were selected to include those in the city center and suburbs of high and low socioeconomic status. Researchers visited the courts to collect information on number and type of food outlets, all menu items for sale, cost of foods and beverages and sales promotions. This information was used to assemble 14 food outlets typically found in food courts, and representative menus were compiled. The UNITY gaming platform was used to design a virtual reality food court that could be used with HTC VIVE goggles. Participants navigated the virtual reality food court using the head-mounted display, keyboard, and mouse and selected a lunch meal, including food and beverage. A validated questionnaire on presence within the virtual reality food court and system usability was completed at the end of the session. The constructs for presence included a sense of control, sensory fidelity, realism, distraction, and involvement. Questions were rated on a scale from 1 (worst) through 7 (best) for each of 28 questions giving a maximum total score of 196. The systems usability scale (SUS) that gives a final score out of 100 was also assessed. RESULTS: One hundred and sixty-two participants with a mean age of 22.5 (SD 3.1) years completed the survey. The mean score for total presence was 144 (SE 1.4) consisting of control: 62.1 (SE 0.8), realism: 17.5 (SE 0.2), involvement: 9.6 (SE 0.2), sensory fidelity: 34.9 (SE 0.4), and distraction: 24.0 (SE 0.3). The mean SUS was 69 (SE 1.1). CONCLUSIONS: Virtual reality shows promise as a tool to study food choice for test interventions to inform practice and policy.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Risk_factors_studies Idioma: En Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Risk_factors_studies Idioma: En Ano de publicação: 2019 Tipo de documento: Article