0215 Estimation of Weight Using Ground Reaction Force in Motion

Abstract

This paper describes a method to estimate weight by using fluctuation of ground reaction force in bending and stretching exercise. We calculate the vertical acceleration of the body's center of gravity regarded as a quadratic function from the force, and estimate weight by taking the average of calculated weight from two terms when the body is lowered in exercise. Compared to the actual weight, the error in the average presumption value of weight is less than 1.3%.