BACKGROUND Residual sensorimotor deficits are common following stroke. While it has been demonstrated that targeted practice can result in improvements in functional mobility years post stroke, there is little to support rehabilitation across the lifespan. The use of technology in home rehabilitation provides an avenue to better support self-management of recovery across the lifespan. We developed a novel mobile technology, capable of quantifying quality of movement with the purpose of providing feedback to augment rehabilitation and improve functional mobility. This mobile rehabilitation system, mRehab, consists of a smartphone embedded in three dimensional printed items representing functional objects found in the home. mRehab allows individuals with motor deficits to practice activities of daily living (ADLs) and receive feedback on their performance. The aim of this study was to assess the usability and consistency of measurement of the mRehab system. METHODS To assess usability of the mRehab system, four older adults and four individuals with stroke were recruited to use the system, and complete surveys to discuss their opinions on the user interface of the smartphone app and the design of the 3D printed items. To assess the consistency of measurement by the mRehab system, 12 young adults were recruited and performed mRehab ADLs in three lab sessions within 1 week. Young adults were chosen for their expected high level of consistency in motor performance. RESULTS Usability ratings from older adults and individuals with stroke led us to modify the design of the 3D printed items and improve the clarity of the mRehab app. The modified mRehab system was assessed for consistency of measurement and six ADLs resulted in coefficient of variation (CV) below 10%. This is a commonly used CV goal for consistency. Two ADLs ranged between 10 and 15% CV. Only two ADLs demonstrated high CV. CONCLUSIONS mRehab is a client-centered technology designed for home rehabilitation that consistently measures performance. Development of the mRehab system provides a support for individuals working on recovering functional upper limb mobility that they can use across their lifespan.

中文翻译：

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利用智能手机技术和三维打印创建移动康复系统 mRehab：评估测量的可用性和一致性。

背景技术 中风后残留的感觉运动缺陷很常见。虽然已经证明有针对性的练习可以改善中风后几年的功能活动能力，但几乎无法支持整个生命周期的康复。家庭康复技术的使用为更好地支持整个生命周期的康复自我管理提供了途径。我们开发了一种新颖的移动技术，能够量化运动质量，目的是提供反馈以增强康复并提高功能活动能力。这种移动康复系统 mRehab 由嵌入三维印刷物品（代表家中功能物品）的智能手机组成。mRehab 允许有运动缺陷的个人练习日常生活活动 (ADL) 并接收有关其表现的反馈。本研究的目的是评估 mRehab 系统的可用性和测量的一致性。方法 为了评估 mRehab 系统的可用性，招募了四名老年人和四名中风患者来使用该系统，并完成调查，讨论他们对智能手机应用程序的用户界面和 3D 打印项目的设计的意见。为了评估 mRehab 系统测量的一致性，招募了 12 名年轻人，并在 1 周内分 3 次实验室进行了 mRehab ADL。选择年轻人是因为他们预期运动表现具有高度一致性。结果 老年人和中风患者的可用性评级促使我们修改 3D 打印物品的设计并提高 mRehab 应用程序的清晰度。对改进后的 mRehab 系统进行了测量一致性评估，六个 ADL 的变异系数 (CV) 低于 10%。这是为了保持一致性而常用的 CV 目标。两个 ADL 范围在 10% 到 15% CV 之间。只有两个 ADL 表现出高 CV。结论 mRehab 是一项以客户为中心的技术，专为家庭康复而设计，可持续衡量表现。mRehab 系统的开发为致力于恢复功能性上肢活动能力的个人提供了支持，使他们可以终生使用。