Wearable shear-wave tensiometry for tracking tendon load during dynamic movement

项目摘要 这个项目的目标是将一种无线的、可穿戴的系统商业化，以便在表面上估计张力 在动态运动中四肢的肌腱。肌腱张力提供了对肌肉的估计 力，这是了解所有类型运动中的生物力学行为的重要信息。 了解体内肌肉-肌腱的功能对于康复尤其重要 肌肉骨骼损伤：这些信息可以阐明治疗的有效性，提供生物反馈给 改善这种有效性，并随着个人的进步评估损伤和恢复的水平 恢复。然而，以前很难测量肌肉-肌腱的功能。肌腱张力测量使用皮肤- 安装的加速度计，用于跟踪横波在诱导后沿肌腱的传播 通过轻微的机械敲击肌腱。波的传播速度取决于肌腱中的张力， 因此，测量波速提供了肌腱张力的测量。 拟议的项目将建立并测试一个可穿戴系统来进行这些肌腱张力的测量 在自由移动期间。这些测量有望实现新的伤害评估方法， 肌肉骨骼疾病的康复和治疗。这将改进当前的原型张力计 技术转化为商业产品，允许方便的户外可穿戴数据收集肌肉肌腱 机械师。它将改进皮肤安装的传感器和不同关节和肌腱的安装套筒。会的 将驱动器和数据记录电子设备集成到一个方便、可穿戴的多通道控制器中。它将创造 用于处理信号以实现实时数据流的高效程序和用于临床的用户界面 常见运动中肌腱张力测量的监测。该项目还将开发便利的手段 特定于对象的校准。将进行人体试验，以建立肌腱负荷数据库 健康的年轻人和老年人的概况。最后，这项研究将开发融合肌腱张力的方法 数据与可穿戴式运动传感器数据，以提高可从Real- 世界测试。 该项目的具体目标是： 1.建立可穿戴式横波张力计，非专家可在多条肌腱上使用。 2.构建了张力计测量数据无线实时传输和显示的软件系统。 3.集成可穿戴式张力计和惯性传感器，实现真实世界中的运动分析。

Project Summary The goal of this project is to commercialize a wireless, wearable system to estimate the tension in superficial tendons throughout the limbs during dynamic movements. Tendon tension provides an estimate of muscle force, which is important information for understanding biomechanical behavior in all types of movement. Understanding muscle-tendon function inside the body is especially important for rehabilitation from musculoskeletal injuries: this information can elucidate the effectiveness of therapy, provide biofeedback to improve this effectiveness, and evaluate the level of impairment and recovery as a person progresses through recovery. Yet, muscle-tendon function has previously been difficult to measure. Tendon tensiometry uses skin- mounted accelerometers to track the propagation of shear waves along a tendon, after the waves are induced by a light mechanical tap on the tendon. The speed of wave propagation depends on the tension in the tendon, so measuring wave speed provides a measurement of tendon tension. The proposed project will build and test a wearable system to make these tendon tension measurements during free movement. These measurements promise to enable new methods of injury assessment, rehabilitation, and treatment of musculoskeletal disorders. This will refine current prototype tensiometry technology into a commercial product to allow convenient outdoor wearable data collections of muscle-tendon mechanics. It will refine the skin-mounted sensor and mounting sleeves for different joints and tendons. It will integrate drive and data logging electronics into a convenient, wearable multi-channel controller. It will create efficient programs to process the signals for real-time data streaming, and user interfaces for clinical monitoring of tendon tensiometry in common movements. The project will also develop means of convenient subject-specific calibration. Human subjects testing will be performed to establish a database of tendon loading profiles in healthy young and older adults. Finally, the research will develop methods to fuse tendon tension data with wearable movement sensor data to improve the quality of biomechanical insight available from real- world testing. The Specific Aims of this project are: 1. Establish a wearable shear wave tensiometer that is usable on multiple tendons by non-experts. 2. Build a software system for real-time wireless transmission and display of tensiometer metrics. 3. Integrate wearable tensiometers and inertial sensors to enable motion analysis in the real world.