ABSTRACT

Pressure injuries for individuals with spinal cord injuries (SCI) are correlated with mortality and are a leading cause for rehospitalizations. The Assisted Weight Shift (AW-Shift©) is a mobile pressure mapping application designed to provide users with a live map view and reminders to perform weight shifts. Novel visualization techniques were used to understand daily distributions of user interaction wit h AW-Shift©. The date and time of system interactions were recorded for six participants with SCI over 7 days (five males/one female, five manual users/one power user, 55.3 ± 17.3 years old, 10.6 ± 6.5 years since injury). Circular frequency plots were created to visualize the time and frequency participants brought the app to the foreground of their phone and received alerts and reminders to complete weight shifts. While some participants used the system regularly throughout the day, others primarily used it before 8am; highlighting the system’s importance for regular spot checks and morning wheelchair setup. Participant adherence to weight shift reminders was low suggesting the live pressure map may be more useful. Circular frequency plots can be used by clinicians to more easily review large amounts of patient data. Future work will investigate raw pressure mat data and create a closed-loop weight shift detection algorithm.

摘要

脊髓损伤 (SCI) 患者的压力性损伤与死亡率相关，并且是再住院的主要原因。辅助体重转移 (AW-Shift©) 是一款移动压力图应用程序，旨在为用户提供实时地图视图和执行体重转移的提醒。使用新颖的可视化技术来了解用户与 AW-Shift© 交互的日常分布。记录了 7 天内 6 名 SCI 参与者的系统交互日期和时间（5 名男性/1 名女性，5 名手动用户/1 名高级用户，55.3 ± 17.3 岁，受伤后 10.6 ± 6.5 年）。创建了圆形频率图，以可视化参与者将应用程序带到手机前台并收到完成体重转移的警报和提醒的时间和频率。虽然有些参与者全天定期使用该系统，但其他参与者主要在上午 8 点之前使用；强调该系统对于定期抽查和早晨轮椅设置的重要性。参与者对体重转移提醒的遵守程度较低，这表明实时压力图可能更有用。临床医生可以使用圆形频率图更轻松地查看大量患者数据。未来的工作将研究原始压力垫数据并创建闭环重量转移检测算法。临床医生可以使用圆形频率图更轻松地查看大量患者数据。未来的工作将研究原始压力垫数据并创建闭环重量转移检测算法。临床医生可以使用圆形频率图更轻松地查看大量患者数据。未来的工作将研究原始压力垫数据并创建闭环重量转移检测算法。