Estimation of Elbow Joint Angle in Flexion and Extension of the Elbow Using Upper Arm Electrical Impedance

摘要

This research shows estimation of elbow joint angle in flexion and extension using 4 or 8 parameters (Z_0, Z_∞, f_m, β, ΔZ_0, ΔZ_∞, _f_m, Δβ) of upper arm electrical impedance and multiple regression analysis. The multiple regression coefficients were very high and more than 0.988. The root mean square error of estimated elbow joint angle was about 5 deg.