慢跑的速度对青年女性下肢关节及肌肉的影响  

Influence of jogging speed on lower limb joints and muscles of young women

作　　者：唐刚[1] 周海[1] 张希安[1] 钱理为[1] 季文婷[1] 王成焘[1] 

机构地区：[1]上海交通大学机械与动力工程学院生物医学制造与生命质量工程研究所,上海200240

出　　处：《医用生物力学》2010年第5期357-362,共6页Journal of Medical Biomechanics

基　　金：国家自然科学基金资助项目(30810103908;30530230)

摘　　要：目的探讨合理的慢跑速度对体形和步姿的影响,使人在慢跑健身的同时兼得柔美的体态。方法根据相关测量选择5种慢跑速度。利用运动捕捉系统采集研究对象(15位青年女性志愿者)在慢跑速度下的运动学数据,同时对下肢8块主要肌肉的肌电信号进行采集。计算获得在不同慢跑速度下髋、膝及踝关节矢状面的关节角度变化的均值。选择数据最接近均值的对象作为研究对象并进行运动学分析。结果计算获得了该研究对象在不同慢跑速度下髋、膝及踝关节矢状面的关节角度以及下肢8块主要肌肉的激活度曲线。运用打分的方法,本文给出了研究对象慢跑速度、慢跑阶段、肌肉激活度与关节角度之间的关系。结论各关节角的变化范围和各肌肉最大激活度并不随慢跑速度的变化而单调变化。本文为青年女性健身时选择适合自己的慢跑速度提供了参考。Objective To study the effect of reasonable jogging speed on body shape and walking gait to make people acquire graceful posture through jogging.Method Five jogging speeds were selected according to related measurements.Kinematical data of subjects（15 young women volunteers） in jogging were measured by the motion capture system,while the EMG signals of 8 major muscles in lower limb were collected simultaneously.The mean angles of hip,knee and ankle joints in sagittal plane at different speeds were calculated.The subject whose data was closest to the mean value was chosen as the research subject and analyze the kinematical data.Results The angles of the subject＇s hip,knee and ankle joints in sagittal plane at different speeds in a gait cycle were presented,and activation curves of her 8 major muscles were obtained during lower limb movements.Relationships between the jogging speed,jogging stage,muscle activation and joint angle were described by the scoring method.Conclusions The range of joint angle and maximum of muscle activation don＇t change with jogging speed monotonously.The study provides a reference for young women to choose their own jogging speed.

关 键 词：慢跑 速度 肌电信号 运动学 步态分析 下肢关节 

分 类 号：R318.01[医药卫生—生物医学工程]