Low back pain: rational component

腰痛：理性成分

• 批准号: 1788-2006
• 负责人: Kumar, Shrawan
• 金额: $ 1.52万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=335426
• 关键词: Low; back; pain; rational; component

The global objectives of the project are two-fold.  One, to develop a database and knowledge on which criteria for controlling low-back injuries due to rotation can be based.  Secondly, through the results obtained, to develop a scientific basis and for formulation of treatment regimes for treatment of low-back pain patients. It is suggested that increasing asymmetry in complex bending-twisting motion increases the load on spinal muscles differentially and significantly.  With increasing twisting, the onset of fatigue in spinal muscles occurs at times increasingly different from each other.  With increasing twisting, the rate of progression of fatigue in different trunk muscles is also different.  The difference in fatigue onset time and rate of fatigue in different trunk muscles results in muscle and mechanical imbalance setting the stage for injury. The specific objectives of the study: i. to develop a qualitative and quantative understanding of combined motion of flexion/extension and trunk rotation ii. to estimate a load sharing among trunk muscles during trunk rotation-flexion-extension in standardized static and dynamic activities at the the velocities of 15, 30 and 60 degress per second at various degress of rotation (20, 40 and 60 degress of twisting) iii. to determine the relative onset timing and rate of progression of fatigue amoung torso muscles leading to muscle imbalance and consequent hazard for injury of various degrees of trunk rotation (20, 40 and 60 degrees of twisting).

该项目的全球目标有两个方面：一是建立一个数据库和知识库，作为控制旋转引起的下背部损伤的标准的基础;二是通过所获得的结果，建立一个科学基础，并制定治疗下背部疼痛患者的治疗方案。结果表明，在复杂的弯曲-扭转运动中，不对称性的增加会不同程度地显著增加脊柱肌肉的负荷。随着扭转的增加，脊柱肌肉疲劳的发生时间也越来越不相同。随着扭转的增加，不同躯干肌肉疲劳的进展速度也不同，不同躯干肌肉疲劳的起始时间和疲劳速度的差异肌肉导致肌肉和机械不平衡，为受伤创造条件。研究的具体目标：一。发展对屈伸和躯干旋转联合运动的定性和定量理解ii.估计在标准化静态和动态活动中以15、30和60度每秒的速度在各种旋转度（20、40和60度扭转）下在躯干旋转-屈曲-伸展期间躯干肌肉之间的负荷分配iii.以确定导致肌肉不平衡的躯干肌肉疲劳的相对起始时间和进展速率，以及由此导致的各种躯干旋转度（20、40和60度扭转）的损伤危险。