Tang Jason, Abraham Charles, Stamp Elena, Greaves Colin
University of Exeter Medical School, University of Exeter, UK.
Br J Health Psychol. 2015 Feb;20(1):151-71. doi: 10.1111/bjhp.12114. Epub 2014 Aug 14.
This study explored young adults' experiences of using e-health internet-based computer or mobile phone applications (apps) and what they valued about those apps.
A qualitative design was used. Semi-structured interviews were conducted with a community sample of 19 young adults who had used a publicly available phone or internet-based application. Transcripts were analysed using thematic analysis.
Participants valued an attractive user interface. Structure, ease of use, personalised features and accessibility (including dual phone-computer access) were all important to participants and users indicated that continued use depended on these design features. Many believed that a focus on calorie counting was too limiting. Some users mentioned behaviour change strategies and known behaviour change techniques utilised by apps including; self-monitoring, goal setting and behavioural feedback. Only a few users reported positive changes in physical activity levels.
Use of particular design features and application of evidence-based behaviour change techniques could optimise continued use and the effectiveness of internet/smart phone interventions. Statement of contribution What is already known on this subject? E-health is increasingly used to deliver weight loss/control programs. Most e-health programs have not been founded on evidence-based designs and it is unclear what features and functions users find useful or not so useful. What does this study add? Weight loss app users valued structure, ease of use, personalised features and accessibility. Goal setting and feedback on calorie intake/energy balance were the most widely used behaviour change techniques. Designers should consider an extensive food database, a food scanner, and provision of diaries.
本研究探讨了年轻人使用基于互联网的电子健康计算机或手机应用程序（应用）的体验，以及他们对这些应用的重视之处。
采用定性设计。对19名使用过公开可用手机或基于互联网应用程序的年轻人社区样本进行了半结构化访谈。使用主题分析法对访谈记录进行分析。
参与者重视吸引人的用户界面。结构、易用性、个性化功能和可访问性（包括手机与计算机双平台访问）对参与者都很重要，用户表示持续使用取决于这些设计特征。许多人认为专注于计算卡路里过于局限。一些用户提到了应用程序所采用的行为改变策略和已知的行为改变技巧，包括自我监测、目标设定和行为反馈。只有少数用户报告身体活动水平有积极变化。
使用特定的设计特征和应用基于证据的行为改变技巧可以优化持续使用以及互联网/智能手机干预的效果。贡献声明关于该主题已知的内容有哪些？电子健康越来越多地用于提供减肥/控制计划。大多数电子健康计划并非基于循证设计，而且不清楚用户认为哪些功能有用或无用。本研究增加了什么内容？减肥应用程序用户重视结构、易用性、个性化功能和可访问性。目标设定和卡路里摄入/能量平衡反馈是使用最广泛的行为改变技巧。设计者应考虑建立广泛的食物数据库、提供食物扫描仪和日记功能。
