I-Corps: Low Cost Gait and Frailty Assessment on Smartphone Platforms

本项目侧重于基于智能手机的数据采集系统，该系统是从多感官实验室研究系统演变而来的。该项目涉及应用客观数据收集和分析来检测和量化步态速度、姿势稳定性和动态稳定性，使用易于访问的智能手机进行低成本评估。与传统方法相比，该方法具有短期和长期优势，因为它消除了观察者之间的可变性，并允许使用大数据方法来改进评估。随着时间的推移，通过STS数据库收集的数据将通过算法改进实现更好的临床决策。除了加强风险评估结果外，这种方法还能够通过消除对专家培训和设施的需求来提高准确的护理点评估的可用性。这项工作的长期目标是通过用客观、信息丰富的评估取代主观数据来改善治疗结果和生活质量。预计长期护理费用将相应减少。这项研究具有潜在的社会效益和步态和稳定性措施的技术进步。该系统可以使卫生保健社区实施广泛的步态和稳定性评估，作为临床决策过程的一部分。虽然目前正在使用，但这些测试通常仅限于能够进入大型步态实验室的人群。增加获取途径可能导致更广泛的应用，从心脏评估到康复，到假肢训练和安装，以及其他。长期的更广泛的影响是集中客观评估数据的适用性和用于医疗诊断和风险评估的长期结果。通过提供对大规模客观数据的访问，迄今为止不可能看到的测试数据模式将被了解，并有助于更好地理解临床护理不同选择的适用性。此外，研究团体对这些数据的访问将为与步态和稳定性特征相关的大规模流行病学研究打开大门。具体来说，动态稳定性测量从根本上扩展了临床步态和平衡评估的临床视野。

This project focuses on a smartphone-based data acquisition system which has evolved from a multisensory laboratory research system. The project involves applying objective data collection and analytics to detect and quantify gait speed, postural stability, and dynamic stability using readily accessible smartphones for low cost evaluations. The approach provides both short and long term advantages over traditional methods by removing inter-observer variability and by allowing for a big data approach to improve assessments. Over time as data are collected through the STS database, better clinical decision making will be enabled through algorithm refinement. In addition to strengthening the risk assessment result, this approach has the ability to improve the availability of accurate point of care assessments by removing the need for specialist training and facilities. The long term objectives of this effort are to improve treatment outcomes and quality of life by replacing subjective data with objective, information-rich assessments. It is anticipated that long term cost of care will be reduced accordingly.This study has the potential for both societal benefits and as technological advancements in gait and stability measures. The system can enable the health care community to implement widespread gait and stability evaluations as part of the clinical decision making process. Though currently used, these tests are typically restricted to populations with access to large gait laboratories. Increased access may lead to broader use from Cardiac assessment to rehabilitation, to prosthetics training and fitment, and others. The longer term broader impact is the applicability of centralized objective assessment data and long-term outcome for use in medical diagnoses and risk assessments. By providing access to large scale objective data, patterns in test data that have heretofore been impossible to see will become known and useful in better understanding the suitability of different options for clinical care. Furthermore, access to this data by the research community will open the door to large scale epidemiological studies associated with gait and stability characteristics. Specifically, dynamic stability measurements fundamentally extend the clinical horizons of clinical gait and balance assessment.