Wearable Shear Wave Tensiometry for Tracking Tendon Load during Dynamic Movement

项目摘要 该项目的长期目标是开发一种无线的、可穿戴的系统来估计 在动态运动中腿部肌腱的张力。肌腱张力提供了一个估计 肌力，这是理解所有人的生物力学行为的重要信息 运动的类型，尽管以前很难衡量。最近的进展已经 结果表明，皮肤安装的加速度计可以跟踪剪切波沿 肌腱，在轻微机械敲击肌腱诱发波浪后。速度之快 波的传播取决于肌腱中的张力，因此测量波速提供了一个 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使这些肌腱张紧 在自由移动过程中的测量。这些测量承诺使新的方法能够 损伤评估、康复、运动训练和肌肉骨骼疾病的治疗。 这项研究将调查移动系统进行匹配测量的能力 实验室系统的质量，以及肌腱张力测量提供 深入了解日常环境中运动过程中的生物力学。 该项目的具体目标是： 1.设计、建造和验证可穿戴系统，通过以下方式测量肌腱张力 横波在肌腱中传播速度的测量。 2.研究可穿戴肌腱张力测量在评估 在真实世界活动中的生物力学功能。

Project Summary The long-term goal of this project is to develop a wireless, wearable system to estimate the tension in tendons of the legs during dynamic movements. Tendon tension provides an estimate of muscle force, which is important information for understanding biomechanical behavior in all types of movement, though it has previously been difficult to measure. Recent advances have shown that skin-mounted accelerometers can 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, athletic training, and treatment of musculoskeletal disorders. This research will investigate the ability of a mobile system to make measurements that match the quality of laboratory systems, and the ability of tendon tension measurements to provide insight into biomechanics during movement in everyday environments. The Specific Aims of this project are to: 1. To design, build, and validate a wearable system for measuring tendon tension through measurements of shear wave propagation speed in tendon. 2. To investigate the utility of wearable tendon tension measurements for assessing biomechanical function during real-world activities.