Millions of people have seen their daily habits transform, reducing physical activity and leading to mental health issues. This study explores how virtual characters impact motivation for well-being. Three prototypes with cartoon, robotic, and human-like avatars were tested by 22 participants. Results show that animated virtual avatars, especially with extended reality, boost motivation, enhance comprehension of activities, and heighten presence. Multiple output modalities, like audio and text, with character animations, improve the user experience. Notably, the cartoon-like character evoked positive responses. This research highlights virtual characters' potential to engage individuals in daily well-being activities.

翻译：数百万人的日常习惯发生改变，体力活动减少，导致心理健康问题。本研究探讨了虚拟角色如何影响健康行为的动机。22名参与者测试了三种原型，分别采用卡通、机器人及类人化虚拟形象。结果显示，动画虚拟形象（特别是结合扩展现实时）能提升动机、增强活动理解度并提高临场感。结合角色动画的多模态输出方式（如音频与文本）可改善用户体验。值得注意的是，卡通角色引发了积极反馈。本研究凸显了虚拟角色在引导个体参与日常健康活动方面的潜力。