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- Phonomyography abstract "Phonomyography (PMG) (also known as acoustic myography, sound myography, vibromyography, and surface mechanomyogram) is a technique to measure the force of muscle contraction by recording the low frequency sounds created during muscular activity.Although less precise than the more traditional mechanomyography, it is considerably easier to set up. The signal is measured using condenser microphone elements, piezoelectric sensors, accelerometers, or a combination of sensors attached to the skin. Hydrophones have also been used to measure muscles immersed in water.The sound created by muscle movement can be heard with the ear pressed up to a contracting muscle, but most of the energy is low frequency, below 20 Hz, making it inaudible infrasound.Electromyography signals are typically bandpass filtered from 10 Hz to 500 Hz, by comparison. PMG signals are limited to 5 Hz to 100 Hz in some experiments. Orizio states that the low-frequency response of the sensor is the most important feature, and should go as low as 1 Hz.(Images of PMG waves are available in this creative commons-licensed document: http://www.biomedical-engineering-online.com/content/4/1/6)Muscle sounds were first described in print by the Jesuit scientist Francesco Maria Grimaldi in a posthumous publication of 1665, which influenced the work of the English physician William Hyde Wollaston and the German scientist Paul Erman. The latter enlisted the aid of René Laennec. Mechanical amplification was first employed by Hermann von Helmholtz. The past two centuries of repeated rediscovery and neglect of the phenomenon were summarised by Stokes and Blythe in 2001.".
- Phonomyography wikiPageExternalLink 6).
- Phonomyography wikiPageID "9829336".
- Phonomyography wikiPageRevisionID "526518801".
- Phonomyography hasPhotoCollection Phonomyography.
- Phonomyography subject Category:Medical_tests.
- Phonomyography subject Category:Neurology_procedures.
- Phonomyography subject Category:Neurophysiology.
- Phonomyography subject Category:Neurotechnology.
- Phonomyography type Abstraction100002137.
- Phonomyography type Act100030358.
- Phonomyography type Activity100407535.
- Phonomyography type Cognition100023271.
- Phonomyography type Event100029378.
- Phonomyography type Experiment105798043.
- Phonomyography type HigherCognitiveProcess105770664.
- Phonomyography type Inquiry105797597.
- Phonomyography type MedicalTests.
- Phonomyography type NeurologyProcedures.
- Phonomyography type ProblemSolving105796750.
- Phonomyography type Procedure101023820.
- Phonomyography type Process105701363.
- Phonomyography type PsychologicalFeature100023100.
- Phonomyography type Thinking105770926.
- Phonomyography type Trial105799212.
- Phonomyography type YagoPermanentlyLocatedEntity.
- Phonomyography comment "Phonomyography (PMG) (also known as acoustic myography, sound myography, vibromyography, and surface mechanomyogram) is a technique to measure the force of muscle contraction by recording the low frequency sounds created during muscular activity.Although less precise than the more traditional mechanomyography, it is considerably easier to set up. The signal is measured using condenser microphone elements, piezoelectric sensors, accelerometers, or a combination of sensors attached to the skin.".
- Phonomyography label "Phonomyography".
- Phonomyography sameAs m.02ptcd5.
- Phonomyography sameAs Q7187308.
- Phonomyography sameAs Q7187308.
- Phonomyography sameAs Phonomyography.
- Phonomyography wasDerivedFrom Phonomyography?oldid=526518801.
- Phonomyography isPrimaryTopicOf Phonomyography.