Infrastructure for Human Movement Analysis

人体运动分析基础设施

• 批准号: RTI-2023-00080
• 负责人: Kuruganti, Usha
• 金额: $ 5.28万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=757901
• 关键词: Infrastructure; Human; Movement; Analysis

The equipment requested is an isokinetic dynamometer to study human movement under controlled conditions. Prosthetic design has advanced greatly over the last two decades; however, challenges remain including user acceptance, increasing the number of functions, lowering reaction times and increasing the intuitiveness of the prosthesis. In addition, it is essential that typical prosthesis movements are studied. Surface EMG has been used to investigate muscle activation patterns to determine which areas of a residual limb would be appropriate for electrode placement and myoelectric control and information within the surface EMG can be used as a control signal for assistive devices. There remains, however, little research investigating muscle activity patterns in both lower and upper limb movements for those with amputations. The use of isokinetic dynamometers is a viable option for those with amputations and, when integrated with newer, high-density EMG (HDEMG) systems, has allowed for greater collection of muscle activation data and understanding of underlying neuromuscular function. HDEMG is a non-invasive technique that collects myoelectric signals from many closely spaced electrodes. Information from HDEMG can be used to obtain accurate data for advanced signal processing techniques to improve prosthetic control strategies that allow for complex movement with ease, which is currently lacking in prosthetics. Isokinetic dynamometry is used extensively in human movement research and we have shown that this technology can be used successfully with prosthesis users (both with and without their device). While we currently have a dynamometer, it is over 17 years old and in desperate need of replacement. Over the last two decades, we have used the dynamometer to measure muscle forces and EMG data from those with amputations and also developed custom-built upper and lower limb adapters which we have patented. The isokinetic dynamometer requested will be able to integrate easily with our current biological signal acquisition systems including a multichannel EMG system as well as a wireless electroencaephalography (EEG) system. The dynamometer requested will replace the previous system and allow for easy integration of biological acquisition systems. The equipment will enable our research team to examine detailed, high volume muscle activity data as well as cognitive burden during prosthetic function, information previously unavailable to us. The advantage of the dynamometer is the ability to conduct a wide variety of movement tests for both upper and lower limbs while maintaining a controlled speed. This enables the examination of dynamic movement in controlled conditions, limiting confounding factors. The ability to integrate significant muscle and neural measures simultaneously will help to develop robust muscle models to improve the human machine interface.

所要求的设备是等速测力计，用于研究受控条件下的人体运动。 在过去的二十年里，假体设计取得了很大的进步;然而，挑战仍然存在，包括用户接受度，增加功能数量，降低反应时间和增加假体的直观性。此外，还必须研究典型的假肢运动。表面EMG已被用于研究肌肉激活模式，以确定残肢的哪些区域将适合于电极放置和肌电控制，并且表面EMG内的信息可以用作辅助设备的控制信号。然而，对于截肢者的下肢和上肢运动中的肌肉活动模式的研究仍然很少。等速测力计的使用是截肢患者的一种可行选择，当与更新的高密度EMG（HDEMG）系统集成时，可以更好地收集肌肉激活数据并了解潜在的神经肌肉功能。HDEMG是一种非侵入性技术，可从许多紧密间隔的电极收集肌电信号。来自HDEMG的信息可用于获得先进信号处理技术的准确数据，以改善假肢控制策略，从而轻松实现复杂的运动，这是目前假肢所缺乏的。 等速测力法广泛用于人体运动研究，我们已经证明，这项技术可以成功地用于假肢用户（无论是否使用他们的设备）。虽然我们目前有一个测力计，它是超过17岁，迫切需要更换。在过去的二十年里，我们使用测力计测量截肢者的肌肉力量和EMG数据，并开发了定制的上肢和下肢适配器，我们已获得专利。所要求的等速测力计将能够很容易地与我们目前的生物信号采集系统集成，包括多通道EMG系统以及无线脑电图（EEG）系统。所要求的测力计将取代以前的系统，并允许轻松集成生物采集系统。该设备将使我们的研究团队能够检查详细的，大量的肌肉活动数据以及假肢功能期间的认知负担，这些信息以前我们无法获得。测力计的优点是能够在保持受控速度的同时对上肢和下肢进行各种运动测试。这使得能够在受控条件下检查动态运动，限制混杂因素。同时整合重要的肌肉和神经测量的能力将有助于开发强大的肌肉模型，以改善人机界面。