The Study of Correlation between Genu Anklebone Varus Angle and Plantar Pressure

Abstract

Yang, W.B.; Yang, Z., and Dong, J.Y., 2020. The study of correlation between genu anklebone varus angle and plantar pressure. In: Guido Aldana, P.A. and Kantamaneni, K. (eds.), Advances in Water Resources, Coastal Management, and Marine Science Technology. Journal of Coastal Research, Special Issue No. 104, pp. 972–977. Coconut Creek (Florida), ISSN 0749-0208.In this paper, data acquisition is carried out with the help of Codamotion three-dimensional motion capture system and footscan plantar pressure acquisition system. The lower limb posture characteristics and plantar pressure data of subjects walking at different walking speeds of slow, medium and fast speed are collected and analyzed. Spearman correlation analysis method is used to analyze the correlation of the pressure knee and ankle joint valgus angle in ten areas of the sole of the foot in the process of walking, to judge whether there is a correlation between the characteristics and analyze the strength of the correlation. Through the analysis, in the process of walking, there is a good correlation between the knee varus angle and the pressure of the first metatarsal area, the second metatarsal area, the third metatarsal area, and the ankle varus angle and the pressure of the fourth metatarsal area, the fifth metatarsal area. Secondly, there is a certain correlation between the varus angle of the knee and ankle and the pressure of the thumb area, and the pressure of the heel inside and outside, while the correlation between the varus angle of the knee and ankle is poor. The correlation coefficients between the pressure of the first metatarsal area and the angle of the ankle varus, the third metatarsal area and the angle of the knee and ankle varus, the fifth metatarsal area and the angle of the ankle varus are small when the speed increases or decreases. Speed has little effect on the correlation between these features. The correlation coefficients of thumb area pressure and genu varus angle, second metatarsal area pressure and genu varus angle, fifth metatarsal area pressure and genu varus angle are different when the speed increases or decreases. Speed has a great influence on the correlation between these features.