Biological Coupling Mechanism On Hemiplegia Gait Compensating Walking Function

The lower limb of humans by injury, we still have to walk. This abnormal gait,dueto the formation of multi-factor coupled with the total, the study due to the couplingeffect of multi-factor compensatory walking biological coupling mechanism, and thusthe effective prediction of biological coupled model, both inergonomics, orrehabilitation projects are of great significance.Based on the Principles of Human Anatomy, Human Lower Extremity simplifyseven rigid body hinged model, using the VICON3D motion capture system andKISTLER force platform built the experimental system of gait analysis, kinematicdata and the dynamics of hemiplegic patients and normal walkingdata collection, Kinhemiplegic patients suffering from both sides as well as normal between the kinematicand dynamic analysis of the data, found that compared with normal patients withhemiplegia health suffering on both sides of the kinematic data and kinetic data aresignificant change. Kinematic data shows that patients with hemiplegia contralateralto extend the time to share a complete support of ipsilateral support phase time isshorter, which is due to the limb before, patients with contralateral limbcompensatorymechanism to balance the asymmetry of the patients, the contralateral limb supportphase proportion increases; kinetics data showed that, in order to maintain a relativelygood walking ability in patients with contralateral knee, hip flexion torqueincreasedankle plantar flexion and dorsiflexion torque is reduced compensatoryphenomenon of change. Coupling mechanism through the hip-knee flexion andextension analysis shows that, in a complete gait cycle, the hip on the human bodybefore the line has played a major role, while the knee is mainly played to control body weight forward, reducing the to face the role of the physical impact. Healthysubjects and patients suffering from both sides of the hip-knee flexion and extensionshowed an approximately linear coupling characteristics; through the hip-ankleflexion and extension movement of the coupling mechanism analysis shows that acomplete gait cycle, the hip line on the human body before play a major role in theankle joint mainly play the role to promote the limbs off the ground to continue tomove forward, as well as in the foot followed to reduce the impact of the face of thebody.Human femur obtained medical images, and through reverse engineering softwareto build their three-dimensional mechanical model, femoral stress changes in the gaitchanges and deformation were analyzed using the finite element method, the resultsshow that in patients with hemiplegia of Kinsuffering from both sides of the stress anddeformation are likely to cause patients with fractures and the risk of arthritisincreases.