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A Virtual Reality Food Court to Study Meal Choices in Youth: Design and Assessment of Usability

JMIR formative research, 2019-01, Vol.3 (1), p.e12456-e12456 [Peer Reviewed Journal]

Margaret Allman-Farinelli, Kiran Ijaz, Helen Tran, Hermes Pallotta, Sidney Ramos, Junya Liu, Lyndal Wellard-Cole, Rafael A Calvo. Originally published in JMIR Formative Research (http://formative.jmir.org), 09.01.2019. ;2019. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Margaret Allman-Farinelli, Kiran Ijaz, Helen Tran, Hermes Pallotta, Sidney Ramos, Junya Liu, Lyndal Wellard-Cole, Rafael A Calvo. Originally published in JMIR Formative Research (http://formative.jmir.org), 09.01.2019. 2019 ;ISSN: 2561-326X ;EISSN: 2561-326X ;DOI: 10.2196/12456 ;PMID: 30684440

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  • Title:
    A Virtual Reality Food Court to Study Meal Choices in Youth: Design and Assessment of Usability
  • Author: Allman-Farinelli, Margaret ; Ijaz, Kiran ; Tran, Helen ; Pallotta, Hermes ; Ramos, Sidney ; Liu, Junya ; Wellard-Cole, Lyndal ; Calvo, Rafael A
  • Subjects: Beverages ; Central business districts ; Food ; Meals ; Nutrition ; Obesity ; Original Paper ; Questionnaires ; Realism ; Sandwiches ; Trials ; Usability ; Virtual reality ; Young adults
  • Is Part Of: JMIR formative research, 2019-01, Vol.3 (1), p.e12456-e12456
  • Description: 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. 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. 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. 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). Virtual reality shows promise as a tool to study food choice for test interventions to inform practice and policy.
  • Publisher: Canada: JMIR Publications
  • Language: English
  • Identifier: ISSN: 2561-326X
    EISSN: 2561-326X
    DOI: 10.2196/12456
    PMID: 30684440
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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