3D force sensing insoles for wearable, AI empowered, high-fidelity gait monitoring

项目摘要 与衰老相关的功能活动性丧失是危险福尔斯和丧失生命的主要原因 独立大约60%的80岁以上的社区居民患有步态障碍， 异常的步态模式与机构化和死亡的风险增加两倍以上有关 与没有步态障碍的老年人相比。通过对步态的时空分析， 通过测量健康和病理群体的步态参数，可以测量、量化和监测步态功能。 三维（3D）测力板和运动捕捉技术是当前分析的黄金标准， 但是它们受到其成本、局限于实验室环境以及不能测量大面积的限制。在 身体性能的现场测试可以由受过训练的人员进行，以筛选功能移动性， 步态障碍，但所得数据只能用于比较步态实验室评估。其他技术 市场上的数据缺乏保真度，需要复杂的数据分析，这使得它们无法被接受。 医疗服务提供者和患者一样。为了解决这些问题，Axioforce正在开发一种非侵入性的 可穿戴技术，提供近乎实时的自动步态洞察。Axioforce的3D力传感鞋 鞋垫，Axiostride，使人工智能（AI）授权在家里的步态监测老年人在- 功能活动性下降的风险。这将是第一个通过鞋子测量3D地面反作用力的产品 鞋垫，可以适合任何正常的鞋，使其适合长期的日常使用。它将赋予临床医生权力， 一个简单的工具，用于早期检测步态障碍和功能性活动能力下降，以帮助防止进一步的功能性 衰落、福尔斯和丧失独立性。这一过渡快速通道赠款将支持开发和测试 的传感鞋垫原型和配套软件。在第一阶段，原型的电路将是定制的， 旨在最大限度地提高采样率和电池寿命，以便在家中连续使用， 鞋垫内传感器的布置将根据标准3D测力板来确定和验证， 以及开发和测试自动数据收集和云上传流程。在第二阶段， 一种人工智能算法，在从老年人正常和病理步态周期收集的鞋垫数据上进行训练， 用于在功能移动性测试中对高于和低于重要阈值的个体进行分类。二是 将进行为期一个月的试点研究，以确定AI授权Axiostride的能力， 功能移动性的无监督分类和分析产品的可接受性和采用。因此，在本发明中， Axioforce旨在进一步改进其鞋垫原型，并开发和测试伴随的准确性 人工智能算法

PROJECT SUMMARY Loss of functional mobility associated with aging is the leading cause of dangerous falls and loss of living independence. Approximately 60% of community-residing individuals >80 years-old have a gait disorder, and abnormal gait patterns are associated with a greater than two-fold increased risk of institutionalization and death in comparison to age-related adults without gait impairments. Through analysis of temporospatial gait parameters of healthy and pathologic populations, gait function can be measured, quantified, and monitored. Three-dimensional (3D) force plates and motion capture technologies are the current gold standard for analysis, but they are limited by their cost, confinement to laboratory settings, and inability to measure large areas. In-the- field tests of physical performance can be conducted by trained personnel to screen for functional mobility and gait impairments, but the resulting data can only be used in comparison gait lab assessments. Other technologies on the market lack data fidelity and require complicated data analysis, which makes them unacceptable to healthcare providers and patients alike. To solve these problems, Axioforce is developing a noninvasive wearable technology that provides near-real time automated gait insights. Axioforce's 3D-force sensing shoe insole, Axiostride, enables artificial intelligence (AI) empowered at-home gait monitoring for aging individuals at- risk of functional mobility decline. This will be the first product to measure 3D ground reaction forces via a shoe insole that can fit within any normal shoe, making it suitable for long term daily use. It will empower clinicians as an easy tool for early detection of gait disorders and declining functional mobility to help prevent further functional decline, falls, and loss of independence. This transition Fast-Track grant will support the development and testing of the sensing insole prototype and accompanying software. In Phase I, the prototype's circuitry will be custom designed to maximize sampling rate and battery life for continuous at-home use, and the most effective arrangement of the sensors within the insole will be determined and validated against a standard 3D force plate, as well as development and testing of an automated data collection and cloud uploading process. In Phase II, an AI algorithm, trained on collected insole data from normal and pathologic gait cycles in aged individuals, will be used to classify individuals above and below important thresholds in functional mobility tests. Secondly, a one-month pilot study will be performed to determine capabilities of the AI empowered Axiostride for unsupervised classification of functional mobility and analyze the product’s acceptability and adoption. Thus, Axioforce aims to further improve its insole prototype and develop and test the accuracy of the accompanying AI algorithm.