【摘 要】
：
Falls and slips are the major causes of the patients hip injury,and falls are regularly related to the floor environment.The biomechanical analysis of peopl
【机 构】
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DepartmentofControlScienceandEngineering,TongjiUniversity,Shanghai,201804,ChinaCollegeofArtsandMedia
【出 处】
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The 5th International Conference of Bionic Engineering 第五届国际
论文部分内容阅读
Falls and slips are the major causes of the patients hip injury,and falls are regularly related to the floor environment.The biomechanical analysis of peoples walking on the different frictional surface of the ground has a great significance for the study of humans stability and the falls prevention research.Therefore,the purpose of this study was to investigate the relationship between biomechanical characteristics and the different frictional surface of the floor during walking.16 healthy volunteers were recruited,53 passive reflective markers were attached,and a VICON 3D motion system was used to record the kinematic data of the subjects.The floor state with different friction coefficient was set: PVC waterproof glass crystal film,Plastic floor,timber floor and fiber plastic carpet.Walking posture was recorded when the subject walking on every surface.The experimental order was randomly chosen across these gaits.Statistical analysis was used to analyze the data,using one-way ANOVA method to test the effect of the floor environment to gait parameters and the lower limb kinematics parameters.Studies have indicated that the floor friction degree has a significant effect on walking speed,center of mass height,step time and joint angles,while it has no significance effect on step width.When people walk on the PVC waterproof glass crystal film,center of mass height declines and toe clearance increase in order to obtain the stability of walking and reduce the risk of falls.These results provide insight into how frictional environment can affect the posture and stability in the real life.
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