Patent ID: 8639320
Filing Date: 2014-01-28
Classification: A61B

Abstract:
1. A muscle-activity diagnosis apparatus comprising: an acquiring section configured to electrically detect an original myoelectric signal from a test subject; a transformed-signal generating section configured to generate a transformed signal by performing Hilbert transformation and inverse Fourier transformation on the original myoelectric signal; a phase-velocity calculating section configured to calculate a phase velocity of the myoelectric signal on the basis of phases of the original myoelectric signal and of the transformed signal; and a state-identifying section configured to identify an activity state of a muscle of a predetermined part of a body of the test subject for each of the unit time on the basis of a plurality of feature quantities of a waveform of the myoelectric signal in a unit time and the plurality of feature quantities including at least a size of amplitude of the myoelectric signal and the calculated phase velocity.