To enable to evaluate a cooperativeness of an exercise of an inferior limb.

When a ratio of a value which is a magnitude of a force (f) generated by the lower limb integrated by each sampling time to the value FN which is a targeted value F of the magnitude of the force multiplied by the number of all of the sampling data N is determined as a=Σf/(FN), and the absolute value |θ| of a slipping angle in the direction of the force against the direction of the tangent of a training track 10 is determined as b=Σ(π/2-|θ|)/(πN/2) and A is determined as a coefficient, a training result evaluating member 5 evaluates (f) and (θ) at the same time using (a2+b2)/A as an evaluation function J.