WorkFit：为知识工作者健康与福祉设计主动式语音助手

先前的研究已在家庭、学校和公共场所等不同环境设计和评估了语音助手（VA）。办公室环境相对缺乏研究，这使得设计专门用于工作环境的VA的基本因素存在差距。在本研究中，我们开发了专门针对办公环境的WorkFit VA，专注于知识工作者的健康与福祉。WorkFit被设计用于监测知识工作者的久坐行为、不一致饮水和压力，并提供主动式语音干预 followed by a health recommendation to mitigate those issues. We evaluated WorkFit in a field study with 15 knowledge workers for 5 working days. In the study, we determined challenges and opportunities for voice interactions in work settings. We identified contextual factors for identifying inopportune moments for voice interactions in an office setting. We found that 92% of knowledge workers accepted WorkFit's hydration interventions while 79% of them engaged in walking breaks. Moreover, breathing exercises recommended by WorkFit significantly stabilized the heart rate of knowledge workers during stress. Based on our findings, we propose five design recommendations for the development of VA customized to office settings.