Muscle-activity diagnosis apparatus, method, and program
First Claim
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.
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Abstract
A muscle-activity diagnosis apparatus includes: an acquiring section acquiring a myoelectric signal from a test subject; using the myoelectric signal as an original signal, a transformed-signal generating section generating a transformed signal by performing Hilbert transformation and inverse Fourier transformation on the original signal; a phase-velocity calculation section calculating a phase velocity of the myoelectric signal on the basis of phases of the original signal and the transformed signal; and 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, a state-identifying section identifying an activity state of a muscle of a predetermined part of a body of the test subject for each of the unit time.
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Citations
8 Claims
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1. A muscle-activity diagnosis apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of diagnosing muscle activity, the method comprising:
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electrically detecting an original myoelectric signal from a test subject; generating a transformed signal by performing Hilbert transformation and inverse Fourier transformation on the original myoelectric signal; calculating a phase velocity of the myoelectric signal on the basis of phases of the original myoelectric signal and the transformed signal; and identifying 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.
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8. A computer program product stored on a non-transitory computer readable medium for causing a computer to function as a muscle-activity diagnosis apparatus, the apparatus comprising:
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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 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.
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Specification