摘要
目的:通过3D Motion测定后伸背法的运动学和动力学参数,为后伸背法操作的规律性研究提供数据支持。方法:邀请1名临床工作25年的推拿医生对21名健康志愿者进行后伸背法操作,采用动态捕捉系统和三维测力台采集运动学和动力学数据。结果:后伸背法在操作前受试者腰部后伸角度约为(14.65±3.83)°,操作瞬间受试者腰部后伸角度约为(18.16±3.32)°,背法瞬间腰部角度加大(3.51±1.80)°,操作时间约(0.23±0.07)s;在操作瞬间,施术者足底合力值变化约(967±120)N。结论:后伸背法操作是施术者弯腰、屈膝、伸膝、挺臀的过程。其挺臀发力过程是瞬间动作,主要特征是发力时间短,力量大。本实验为后伸背法的规范化操作提供了数据支持。
Objective: To measure kinematic and dynamics parameter of rear extension back-carrying method by 3D Motion, and to provide supportive data for the regularity study. Methods: One clinical doctor with more than 25-year tuina practice was invited to perform rear extension back-carrying operation on 21 healthy volunteers. A dynamic capturing system and 3 dimensional force-measuring platform were used to collect kinematic and dynamic data. Results: Before performing rear extension back-carrying method, the rear extension angle of the subject waist was approximately(14.65±3.83) degrees; during the momentary angle change required in performing this technique, rear extension angle reached approximately(18.16±3.32) degrees, the waist angle increased approximately(3.51±1.80) degrees, and the operating time was about(0.23±0.01) seconds. At the moment of performing this technique, the force value of the doctor's feet changed approximately(967±120)N. Conclusion: The rear extension back-carrying method is a course of the operator stoop, bend knees and lift the hips. The hip lifting process is instantaneous act, whose key features includes a short time and a strong force. The experiment provides data support for standard manipulation of rear extension back-carrying method.
出处
《中华中医药杂志》
CAS
CSCD
北大核心
2016年第8期3246-3249,共4页
China Journal of Traditional Chinese Medicine and Pharmacy
基金
国家自然科学基金项目(No.81373759)
北京市自然科学基金项目(No.7142097)~~
关键词
后伸背法
运动学
动力学
参数
操作特征
高速红外运动捕捉系统
三维测力台
Rear extension back-carrying method
Kinematics
Dynamics
Parameter
Operational feature
High speed infared motion capture system
Three dimensional force-mea suring platform
