Department of Computer Science, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
School of Medicine, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile.
Sensors (Basel). 2018 Oct 11;18(10):3409. doi: 10.3390/s18103409.
Monitoring the posture of older persons using portable sensors while they carry out daily activities can facilitate the process of generating indicators with which to evaluate their health and quality of life. The majority of current research into such sensors focuses primarily on their functionality and accuracy, and minimal effort is dedicated to understanding the experience of older persons who interact with the devices. This study proposes a wearable device to identify the bodily postures of older persons, while also looking into the perceptions of the users. For the purposes of this study, thirty independent and semi-independent older persons undertook eight different types of physical activity, including: walking, raising arms, lowering arms, leaning forward, sitting, sitting upright, transitioning from standing to sitting, and transitioning from sitting to standing. The data was classified offline, achieving an accuracy of 93.5%, while overall device user perception was positive. Participants rated the usability of the device, in addition to their overall user experience, highly.
使用便携式传感器监测老年人在进行日常活动时的姿势，可以方便地生成评估他们健康和生活质量的指标。目前大多数关于此类传感器的研究主要集中在它们的功能和准确性上，很少有人关注与设备交互的老年人的体验。本研究提出了一种可穿戴设备来识别老年人的身体姿势，同时也研究了用户的感知。在这项研究中，三十名独立和半独立的老年人进行了八种不同类型的身体活动，包括：行走、举手、放下手臂、前倾、坐、坐直、从站立到坐下的转换，以及从坐下到站立的转换。数据离线分类，准确率达到 93.5%，而整体设备用户感知为积极。参与者对设备的可用性以及整体用户体验进行了高度评价。
