Center of Excellence in Wheelchairs and Associated Rehabilitation Engineering, Veterans Affairs Pittsburgh Healthcare System and Human Engineering Research Laboratories, Pittsburgh, PA; Department of Rehabilitation Sciences and Technology, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA.
Center of Excellence in Wheelchairs and Associated Rehabilitation Engineering, Veterans Affairs Pittsburgh Healthcare System and Human Engineering Research Laboratories, Pittsburgh, PA; Department of Rehabilitation Sciences and Technology, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA.
Arch Phys Med Rehabil. 2019 Apr;100(4):627-637. doi: 10.1016/j.apmr.2018.07.432. Epub 2018 Aug 25.
To compare the Mobility Enhancement roBotic (MEBot) wheelchair's capabilities with commercial electric-powered wheelchairs (EPWs) by performing a systematic usability evaluation.
Usability in effectiveness, efficacy, and satisfaction was evaluated using quantitative measures. A semistructured interview was employed to gather feedback about the users' interaction with MEBot.
Laboratory testing of EPW driving performance with 2 devices in a controlled setting simulating common EPW driving tasks.
A convenience sample of expert EPW users (N=12; 9 men, 3 women) with an average age of 54.7±10.9 years and 16.3± 8.1 years of EPW driving experience.
Not applicable.
Powered mobility clinical driving assessment (PMCDA), Satisfaction Questionnaire, National Aeronautics and Space Administration's Task Load Index.
Participants were able to perform significantly higher number of tasks (P=.004), with significantly higher scores in both the adequacy-efficacy (P=.005) and the safety (P=.005) domains of the PMCDA while using MEBot over curbs and cross-slopes. However, participants reported significantly higher mental demand (P=.005) while using MEBot to navigate curbs and cross-slopes due to MEBot's complexity to perform its mobility applications which increased user's cognitive demands.
Overall, this usability evaluation demonstrated that MEBot is a promising EPW device to use indoors and outdoors with architectural barriers such as curbs and cross-slopes. Current design limitations were highlighted with recommendations for further improvement.
通过进行系统的可用性评估，比较 Mobility Enhancement roBotic（MEBot）轮椅和商业电动轮椅（EPW）的性能。
使用定量测量方法评估有效性、功效和满意度方面的可用性。采用半结构化访谈收集用户与 MEBot 交互的反馈。
在模拟常见 EPW 驾驶任务的受控环境中，使用 2 种设备对 EPW 驾驶性能进行实验室测试。
12 名专家 EPW 用户（9 名男性，3 名女性）的便利样本，平均年龄为 54.7±10.9 岁，EPW 驾驶经验为 16.3±8.1 年。
不适用。
电动移动临床驾驶评估（PMCDA）、满意度问卷、美国国家航空航天局任务负荷指数。
参与者使用 MEBot 过路缘和横坡时，能够完成更多任务（P=.004），并且在 PMCDA 的充分性-功效（P=.005）和安全性（P=.005）两个方面的得分显著更高。然而，由于 MEBot 执行其移动应用程序的复杂性增加了用户的认知需求，参与者报告在使用 MEBot 过路缘和横坡时心理需求显著更高（P=.005）。
总体而言，这项可用性评估表明，MEBot 是一种很有前途的 EPW 设备，可用于室内和室外，包括路缘和横坡等建筑障碍。突出了当前设计限制，并提出了进一步改进的建议。
