Study of Lower Limb Joint Motion Stability Using Height Features
This paper studies the stability of the height change characteristics of lower limb joints during walking in the same person.The subjects walked naturally 30 times,and Codamotion is used to collect the joint height of the subjects during walking,and the Spearman's coefficient correlation test is used to statistically analyze the variation of the lower limb height of the same person who walked naturally(only the right side is analyzed to avoid doubling the sample size).The results show:at the 0.01 level(double tail),98.9%of the Spearman's correlation coefficients of lower limb joint height are highly correlated;1.1%are significantly correlated,86.6%of the lower limb joint speed Spearman's correlation coefficients are highly correlated;13.4%are significantly correlated,and the mean height of each walking stage in the four parts except the knee pedaling stage is normally distributed.The conclusion can be drawn that the height and speed changes of the test site are stable when the same person walks,and the height stability of the joint at different walking stages is also different.