Body Eleven Rigid Body Biomechanical Model And Biomechanical Study Of Running Exercise

With the popularity of running sports,Joint injury caused by running has become a major hidden dangers.In order to research the causes of joint damage,biomechanical study of human running process.Through the study and analysis of the inherent law of running exercise and limb joint force characteristics,the research content plays a very important role in many fields.From the theory,simulation,experimental combination of ways,research on running discipline is as follows:1.Analysis of the characteristics of human running sports,combined with the multiparticle multi-rigid body eleven rigid body biomechanical modeling,and in the human sagittal plane to establish kinematic equations,establish coordinate position relation,centroid position expression.For the supporting period in running,the body of the body eleven rigid Lagrange equations,vacancy period using the law of moment of momentum analysis,how to use the characteristics of human movement to improve athletic performance.Analysis of the Effect of Inertial Force on Running a Multibody Model of Human Body.2.Through experimental methods,use the accelerometer,FAB system and plantar phase system to obtain running exercise parameters,data is divided,filtered and classified.Get running foot state distribution,joint angle changes,physical changes in the acceleration and plantar pressure changes.Combined with multi-rigid body model,simulate with SimMechanics.3.Through experiments,we obtained various kinds of exercise data of human body during running,based on the data analysis,the relationship between step frequency and step length is obtained,and how to increase step frequency and step length to improve running speed.The gait cycle changes at different running speeds are also different,The support period,vacancy period,and swing period change as the run rate increases.Focus on analysis of running extremity joint extremum changes in the law,contrasting the changes of the joint rotation angle of upper and lower limbs under different running speeds.Help us analyze some of the phenomena of running exercise,describe the data of running exercise,the limb rotation data obtained was applied to SimMechanics simulation model,simulate the human body running exercise.4.The key to running sports is the stress in all aspects,according to running experiments to obtain plantar pressure and exercise parameters.Combined with the theoretical dynamics equation,we get the running complete,the joint force and joint torque of each joint changes.Found that supporting the lower extremity joints of the force situation,comparing the simulation joint torque with the experimental joint torque to verify the correctness of the dynamic model.According to the experimental data of the acceleration of each limb,combined with the equation of inertia force,obtained the inertia force of each limb-time curve.