electromyogram
Nerve-muscle electrical readout
An electromyogram is a recording of the electrical activity produced by muscles, used to diagnose neuromuscular disorders.
The test measures how muscles respond to nerve signals, helping identify conditions like muscular dystrophy, carpal tunnel syndrome, or nerve damage: The electromyogram showed abnormal muscle response in her forearm.
Often abbreviated EMG.
Electrical contact points
- signalMessage-conveying cue
- amplifierSignal-strengthening electronic device
- oscilloscopeVoltage waveform display device
- waveformGraphed oscillation pattern
fibrillation · fasciculation · interference pattern · recruitment · amplitude · frequency · duration · baseline
Medical science of nerves
- muscle activityFibers contracting and relaxing
- nerve functionTransmission of bodily signals
- diagnosisIdentification of illness
- neuromuscularNerve-to-muscle signaling
neuropathy · ALS · muscular dystrophy · polymyositis · carpal tunnel · radiculopathy · motor neuron disease · Guillain-Barré
Training via physiological monitoring
- kinesiologyStudy of bodily motion
- prostheticsFabricated body part replacements
- rehabilitationRecovery from injury/addiction
- sports medicineHealthcare for athletic injuries
Into muscle tissue
- muscle contractionFibers tensing and shortening
- relaxationState of being unwound
- insertionPlacing something within
- reference electrodeStable potential comparison device
electrodes
Electrical contact points
- signalMessage-conveying cue
- amplifierSignal-strengthening electronic device
- oscilloscopeVoltage waveform display device
waveform · fibrillation · fasciculation · interference pattern · recruitment · amplitude · frequency · duration · baseline · artifact
neurology
Medical science of nerves
- muscle activityFibers contracting and relaxing
- nerve functionTransmission of bodily signals
- diagnosisIdentification of illness
neuromuscular · neuropathy · ALS · muscular dystrophy · polymyositis · carpal tunnel · radiculopathy · motor neuron disease · Guillain-Barré · denervation
biofeedback
Training via physiological monitoring
- kinesiologyStudy of bodily motion
- prostheticsFabricated body part replacements
- rehabilitationRecovery from injury/addiction
sports medicine · ergonomics · speech pathology · occupational health
intramuscular
Into muscle tissue
- muscle contractionFibers tensing and shortening
- relaxationState of being unwound
- insertionPlacing something within
electromyogramelectrocardiogram
Heart's electrical activity record
ECG · EKG · electroencephalogram · EEG · cardiogram