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

项目摘要 这个项目的目标是商业化的无线，可穿戴系统，以估计在肤浅的紧张局势 在动态运动中贯穿四肢的肌腱。肌腱张力提供了肌肉的估计 力，这是理解所有类型运动中生物力学行为的重要信息。 了解肌肉肌腱在体内的功能，对于康复尤为重要， 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， 提高这种有效性，并评估一个人的损害和恢复水平， 复苏然而，肌肉肌腱功能以前很难测量。肌腱张力测量法使用皮肤- 安装加速度计，以在波被诱发之后跟踪剪切波沿着钢筋束的传播 轻轻敲击肌腱波的传播速度取决于钢筋束中的张力， 因此测量波速提供了对钢筋束张力的测量。 拟议的项目将建立和测试一个可穿戴系统，使这些肌腱张力测量 在自由运动中。这些测量有望实现新的伤害评估方法， 康复和治疗肌肉骨骼疾病。这将完善目前的原型张力测量 将该技术转化为商业产品，以允许方便的肌肉肌腱的户外可穿戴数据收集 力学它将改进皮肤安装传感器和安装套管，用于不同的关节和肌腱。它将 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 有效的程序来处理实时数据流的信号，以及用于临床的用户界面。 监测常见运动中的肌腱张力。该项目还将开发方便的 对象特定校准。将进行人类受试者测试，以建立肌腱载荷数据库 健康的年轻人和老年人。最后，研究将开发融合肌腱张力的方法 数据与可穿戴运动传感器数据，以提高从真实的- 世界测试 该项目的具体目标是： 1.建立一个可穿戴的剪切波张力计，可用于多个肌腱的非专家。 2.建立一个软件系统，用于实时无线传输和显示张力计指标。 3.集成可穿戴张力计和惯性传感器，实现真实的世界中的运动分析。

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.