Patent ID: 7787955

Claim:
A muscle training apparatus comprising: conductors to be mounted on a body of a user; an operation section for receiving a magnitude of an electrical stimulation signal or a magnitude of an interference wave frequency from the user; a memory section for storing a current-and-frequency-correlation data which correlates the magnitude of the electrical stimulation signal with a supply frequency of the electrical stimulation signal; a control section for determining the supply frequency based on the magnitude of the electrical stimulation signal or the magnitude of the interference wave frequency input to the operation section by the user, and the current-and-frequency-correlation data; and an electrical stimulation output section for generating the electrical stimulation signal based on the magnitude of the electrical stimulation signal, the magnitude of the interference wave frequency, and the supply frequency of the electrical stimulation signal which are instructed by the control section, and generating an interference wave by providing the electrical stimulation signal to the body of the user via the conductors, wherein in the current-and-frequency-correlation data, in which the magnitude of the electrical stimulation signal is correlated with the supply frequency of the electrical stimulation signal in an equal-interval graph with the magnitude of the electrical stimulation signed as a horizontal axis and the supply frequency as a vertical axis, the magnitude of the electrical stimulation signal is in direct proportion to the supply frequency of the electrical stimulation signal for an entire supply frequency band range more than or equal to 0 Hz, and wherein the electrical stimulation signal or the supply frequency of the electrical stimulation signal does not change along with changes in time.