Biomechanics of the interaction between the musculoskeletal system and the worn environment.

肌肉骨骼系统与磨损环境之间相互作用的生物力学。

• 批准号: RGPIN-2014-04881
• 负责人: Jenkyn, Thomas
• 金额: $ 1.75万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=566805
• 关键词: Biomechanics; interaction; between; musculoskeletal; system

This research program is the first systematic biomechanical examination of the interaction between what one wears and the underlying anatomy. Worn items often have the role of bearing load or dissipating loads applied to the body. This includes footwear, helmets and face masks, body protection and garments that assist movement and enhance our physical abilities. The loads applied to these items are ultimately transferred to the musculoskeletal system. The effectiveness, comfort and efficiency of how these items perform are fundamentally tied to the proper transfer of load. Improper fit or relative motion between the worn item and the underlying anatomy will compromise performance. This research program will directly measure the relative motion between worn items and underlying anatomy. It will also measure the contact pressures between the worn item and the skin and will calculate the internal stress state of the musculature and soft tissue. Of particular interest will be footwear and in-shoe orthotics, helmets with face protection, and assistive devices for off-loading or protecting the joints. By understanding the transfer of external loads to internal anatomy, the design and fit of these worn items can be optimized. To goal of optimization would be to maximize mobility and speed of ambulation, maximize protection from injury and maximize comfort. This research program studies living test volunteers who are fully weight-bearing and moving during functional activities. The main method used will be bi-plane fluoroscopic radio-stereometric analysis, or fRSA. This is a 3D x-ray system that can capture the motion of the bone and the worn item simultaneously during an impact or other event. The worn item will also be instrumented with accelerometers and strain gauges to measure the deformation and forces within the worn item. A pressure pad on the skin, under the worn item, will measure the distribution of pressure at the interface of the item and the anatomy. Using all this data will be a finite element analysis of the worn item and the underlying anatomy. The ultimate goal is the improvement of these items so that they maximize safety and minimize the loads transferred into the body.

这项研究计划是第一次对一个人的穿着和基本解剖之间的相互作用进行系统的生物力学检查。磨损的物品通常具有承重或分散施加在身体上的负荷的作用。这包括鞋子、头盔和口罩、身体保护和有助于运动和增强身体能力的服装。施加到这些物品上的负荷最终转移到肌肉骨骼系统。这些物品的有效性、舒适性和效率从根本上取决于负荷的适当转移。磨损的物品和基本解剖结构之间不适当的配合或相对运动会影响性能。这项研究计划将直接测量磨损物品和潜在解剖之间的相对运动。它还将测量磨损物品与皮肤之间的接触压力，并计算肌肉和软组织的内部应力状态。特别令人感兴趣的将是鞋类和鞋内矫形器、带面部保护的头盔，以及用于卸载或保护关节的辅助设备。通过了解外部载荷到内部解剖的传递，可以优化这些磨损物品的设计和贴合。优化的目标是最大限度地提高行走的机动性和速度，最大限度地保护身体免受伤害，最大限度地提高舒适性。这项研究项目研究的是在功能活动中完全负重和活动的活体测试志愿者。使用的主要方法将是双平面荧光放射立体分析，或FRSA。这是一种3D X射线系统，可以在撞击或其他事件期间同时捕捉骨骼和磨损物品的运动。磨损的物件还将配备加速计和应变计，以测量磨损物件内的变形和力。在磨损的物品下面的皮肤上的压力垫将测量物品和解剖交界处的压力分布。使用所有这些数据将对磨损的物品和潜在的解剖结构进行有限元分析。最终目标是改进这些物品，使它们最大限度地提高安全性，并将转移到体内的负荷降至最低。