Soft and rigid tissue effects on shock propagation.

目前还不清楚软组织（肌肉、脂肪）和硬组织（骨）如何相互作用，以减弱潜在的有害冲击力（冲击），因为它们通过身体部位传播到更近端的解剖结构，随后的活动，如跑步期间的脚跟着地和摔倒后用伸展的上肢阻止身体。 加拿大人经常经历这类活动，相关影响的负面后果可能是深远的。 我们对组织如何相互作用以减轻冲击冲击的有害影响的理解将通过以下方式得到改善：1。通过开发和验证各种人群（例如年轻人与老年人）的四肢、躯干和头颈部的预测方程，建立软组织和硬组织肿块的库存。这将大大提高我们的能力，生物力学模型的所有部分组织的影响后的反应; 2。进一步评估用于向活体参与者和人体样本提供和控制冲击的创新方法，这些方法更接近地模拟典型的着陆和防坠落冲击条件;以及3.利用各种成像和建模方法来量化软组织和硬组织的响应，并记录冲击后通过这些组织的冲击传播路径。 从这项工作中，预计生物力学界将大大了解组织如何响应和相互作用，在涉及影响的共同活动。 我们还将能够更好地评估和模拟人类的反应，由于改进的现实主义的影响交付和能力，以记录如何在这些活动中经历的冲击传播通过节段组织。 总的来说，这项研究的成果将大大促进这一领域的冲击生物力学研究的进展，并最终为评估和改善伤害预防策略提供方向，并降低与冲击损伤相关的医疗费用，这将使所有加拿大人受益。

It is not well understood how soft (muscle, fat) and rigid (bone) tissues interact to attenuate potentially injurious impact forces (shock) as they propagate through body segments to more proximal anatomical structures, following activities such as heel landings during running and arresting the body with outstretched upper extremities after falling. Activities such as these are commonly experienced by Canadians and the negative consequences of the associated impacts can be profound. Our understanding of how tissues interact to mitigate the detrimental effects of impact shock will improve as a result of this research by: 1. establishing an inventory of soft and rigid tissue masses by developing and validating prediction equations for the extremity, trunk, and head and neck segments of a wide range of people (e.g. young vs. older people). This will dramatically enhance our ability to biomechanically model the response of all segment tissues following impact; 2. further evaluating innovative methods for delivering and controlled impacts to living participants and human specimens that more closely mimic typical landing and fall arrest impact conditions, and; 3. utilizing various imaging and modeling approaches to quantify the response of soft and rigid tissues and document shock propagation pathways through these tissues after impact. From this work, it is anticipated that the biomechanics community will learn considerably about how tissues respond and interact during common activities involving impact. We will also be able to better evaluate and model the human response due to the improved realism of impact delivery and capacity to document how shock experienced during these activities propagates through segment tissues. Taken together, the outcomes of this research will significantly foster the progression of impact biomechanics research in this area and ultimately provide direction for assessing and improving injury prevention strategies and reducing healthcare costs associated with impact-induced injuries, that will benefit all Canadians.