Patent ID: 6512948
Filing Date: 2003-01-28
Classification: A61B,A61M

Abstract:
An exercise machine, comprising:a load device capable of changing a load; a physiological signal measuring unit measuring a physiological signal noninvasively over time; an exertion level estimating unit estimating an exertion level based on the physiological signal corresponding to a change of the load of said load device; and a changing unit changing the load of said load device employing the estimated exertion level; said load device being capable of gradually increasing the load over time, said physiological signal measuring unit being an electrocardiographic sensor detecting an electrocardiographic signal, said exertion level estimating unit estimating the exertion level based on the electrocardiographic signal detected while said load is gradually increased, and said exertion level estimating unit estimating, as said exertion level, an anaerobic threshold based on a fluctuation of heartbeat rate intervals in each electrocardiographic signal detected.