Effects of Multimodal Feedback on the Usability of Mobile Diet Diary for Older Adults

  • Miroslav Bojic
  • Olivier A. Blanson Henkemans
  • Mark A. Neerincx
  • Charles A. P. G. Van der Mast
  • Jasper Lindenberg
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5616)

Abstract

Globally, overweight is an increasing problem and this especially the case for older adults, facing physical challenges and who need to maintain a healthy diet. eHealth services, such as a digital diet diary could support them. Consequently, we designed a multimodal mobile diet diary supporting interaction through text, graphics and speech. The diary, which gave personalized advice about maintaining a healthy diet based on meals entries, was evaluated with 32 older adults in a Smart Home Lab through use of scenarios. Results indicate that participants’ satisfaction was highest when the feedback was provided through text and graphics. We found no effect on the effectiveness and efficiency. Additionally, spatial ability, computer experience and age explained variance in the evaluation of the diary. Our findings show that a multimodal mobile diet diary can support older adults maintaining a healthy diet and give insights on designing usable mobile interfaces for older adults.

Keywords

older adults multimodal feedback multimodal interaction usability diet diary diet knowledge eHealth self-care mobile devices PDA 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Miroslav Bojic
    • 1
  • Olivier A. Blanson Henkemans
    • 1
  • Mark A. Neerincx
    • 2
  • Charles A. P. G. Van der Mast
    • 1
  • Jasper Lindenberg
    • 2
  1. 1.Delft University of TechnologyDelftThe Netherlands
  2. 2.TNO Defense and SecuritySoesterbergThe Netherlands

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