Thoracic and Lumbar Spine Biomechanics

胸椎和腰椎生物力学

• 批准号: RGPIN-2018-05843
• 负责人: Drake, Janessa
• 金额: $ 2.11万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=649577
• 关键词: Thoracic; Lumbar; Spine; Biomechanics

Appropriate neuromuscular control and musculoskeletal responses of the thoracic and lumbar spine are essential to complete work and everyday tasks without injury. Labour injury statistics across Canada show low back pain (LBP) consistently represented the largest number of workplace related musculoskeletal disorder (WRMSD) claims (~18%) and had a total costs over $2 billion/year in 2014. If you consider the incidence of LBP increases with age, coupled to the Statistics Canada estimate that by 2027 30% of the Canadian population will be over 55 years, we must improve the knowledge about spine function now. The most far-reaching impact of my research program is the contribution to the fundamental knowledge of thoracic and lumbar spine musculoskeletal and neuromuscular control responses under conditions representing workplace risk factors. The foundational knowledge I generate deepens our understanding of the spine, which will reduce WRMSDs and costs to Canadians. ******My program examines the structure, control, and function of the thoracic and lumbar spine, to characterize the mechanisms underlying how healthy systems respond to a range of loading. I investigate the effects of age, sex, cognitive-motor task interference, and fatigue. The inclusion of the thoracic spine in my investigations is a novel aspect of my work, as is the novel method we developed to accurately quantify twist in-vivo. The novel method we developed to measure in-vivo spine twist has huge implications for rapidly increasing our understanding of this dangerous risk factor occurring in workplaces. Other methods are typical biomechanical approaches, including 3D motion capture for joint kinematics, muscle activation, and structural whole-body MRI. The empirical data and understanding of spine function generated from my program can be incorporated into existing lumbar spine models (expand to include thoracic spine impact) and can set parameters for in-vitro spine testing (to test injury mechanism theory). By reaching my research goals, developing a thriving research team (that includes high quality student trainees), and publishing in excellent journals, my research program will continue to make new discoveries and have a major impact on biomechanics and ergonomic fields. My program is the sole program worldwide to focus on thoracic spine mechanics, neuromuscular control, and interplay with lumbar spine, and twisting exposures to identify potential and understand existing spine injury mechanisms.

适当的神经肌肉控制和胸腰椎肌肉骨骼反应是完成工作和日常任务而不受伤的必要条件。加拿大的工伤统计数据显示，腰痛（LBP）一直是与工作场所相关的肌肉骨骼疾病（WRMSD）索赔的最大比例（约18%），2014年的总成本超过20亿美元/年。如果你考虑到腰痛的发病率随着年龄的增长而增加，再加上加拿大统计局估计到2027年，30%的加拿大人口将超过55岁，我们现在必须提高对脊柱功能的认识。我的研究项目最深远的影响是对工作场所危险因素条件下胸椎和腰椎肌肉骨骼和神经肌肉控制反应的基础知识的贡献。我所获得的基础知识加深了我们对脊柱的理解，这将减少加拿大人的wrmsd和成本。******我的项目检查了胸椎和腰椎的结构、控制和功能，以表征健康系统对一系列负荷的反应机制。我研究了年龄、性别、认知运动任务干扰和疲劳的影响。在我的研究中纳入胸椎是我工作的一个新颖方面，正如我们开发的准确量化体内扭曲的新方法一样。我们开发的测量体内脊柱扭曲的新方法对迅速增加我们对工作场所发生的这种危险因素的理解具有巨大的意义。其他方法是典型的生物力学方法，包括关节运动学的3D运动捕捉、肌肉激活和结构全身MRI。我的项目产生的经验数据和对脊柱功能的理解可以纳入现有的腰椎模型（扩展到包括胸椎撞击），并可以为体外脊柱试验设定参数（测试损伤机制理论）。通过实现我的研究目标，发展一个蓬勃发展的研究团队（包括高质量的学生实习生），并在优秀的期刊上发表文章，我的研究计划将继续做出新的发现，并在生物力学和人体工程学领域产生重大影响。我的项目是世界上唯一一个专注于胸椎力学、神经肌肉控制、与腰椎的相互作用以及扭曲暴露以识别潜在和了解现有脊柱损伤机制的项目。