Accepted for/Published in: JMIR mHealth and uHealth
Date Submitted: May 3, 2018
Open Peer Review Period: May 7, 2018 - Jul 2, 2018
Date Accepted: Oct 26, 2018
(closed for review but you can still tweet)
Evaluating Mobile Health Application on Customized Dietary Recording for Young Adults and Elders Using Randomized Trials
ABSTRACT
Background:
The role of individual-tailored dietary recording in mobile phone health applications has become increasingly important in management of self-healthcare and population-based preventive service. The development such mobile applications for user-centered designing is still challengeable and requires further scientific evidence.
Objective:
This study aims to conduct the randomized trial to assess the accuracy and efficiency of the two prototypes for dietary recoding utilization, including designs of SCT (self-chosen tab) and AEL (autonomous exhaustive list) for individual dietary intakes.
Methods:
We first present an innovative combinatorial concept for dietary recording to account for dish variation. The SCT features with choosing each food ingredient to synthesize an individual dish, while the AEL provides one selection from a comprehensive list of dish items. The concept includes commercial available choices that allow users to more accurately account for their individual food selection. The two mobile applications were implemented for further head-to-head parallel randomized trial evaluation. Young adults (n = 70) and older adults (n=35) were recruited and randomized into two groups for accuracy and response time evaluation based on 12 types of food items in use of the developed SCT and AEL respectively.
Results:
Using the trial based on SCT (53 participants) and AEL groups (52 participants), the two prototypes were found to be highly effective on accuracy (above 98%). SCT was found to be more timely efficient, requiring significantly less time for input of 11 of the 12 items (p<0.05). SCT users occasionally neglected to select food attributes, an issue which did not occur in AEL.
Conclusions:
Our study contributes through the scientific evaluation of the transformation step into prototype development to demonstrate that SCT has a better opportunity in effectiveness and efficiency. The combinatorial concept offers potential for dietary recording and planning which can account for high food item variability. Our findings on prototype development of diversified dietary recording provide design consideration and user interaction for related further application development and improvement. Clinical Trial: ISRCTN86142301 https://doi.org/10.1186/ISRCTN86142301
Citation
Per the author's request the PDF is not available.
Copyright
© The authors. All rights reserved. This is a privileged document currently under peer-review/community review (or an accepted/rejected manuscript). Authors have provided JMIR Publications with an exclusive license to publish this preprint on it's website for review and ahead-of-print citation purposes only. While the final peer-reviewed paper may be licensed under a cc-by license on publication, at this stage authors and publisher expressively prohibit redistribution of this draft paper other than for review purposes.