Quantification of motor unit action potential energy

• Published in: Clinical neurophysiology Vol. 123; no. 3; pp. 621 - 625
• Main Author: Sheean, Geoffrey L
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ireland Ltd 01-03-2012; Elsevier
• Subjects: Action Potentials - physiology; Adult; Aged; Aged, 80 and over; Biological and medical sciences; Electrodiagnosis. Electric activity recording; Electromyography - methods; Energy; Female; Fundamental and applied biological sciences. Psychology; Humans; Investigative techniques, diagnostic techniques (general aspects); Male; Medical sciences; Middle Aged; Models, Neurological; Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration; Motor Neurons - physiology; MUAP analysis; Muscle Fibers, Skeletal - physiology; Muscular Diseases - physiopathology; Musculoskeletal Physiological Phenomena; Nervous system; Neurology; Quantitative EMG; Radiculopathy - physiopathology; Size Index; Time–frequency analysis; Vertebrates: nervous system and sense organs; United States; North America; America; Quantitative EMG; MUAP analysis; Size Index; Time–frequency analysis; Energy; Human; Time-frequency analysis; Nervous system diseases; Force; Energy distribution; Interference; Electrophysiology; Action potential; Representation; Motor unit; Electrodiagnosis; Needle electrode; Electromyography; Time analysis
• ISSN: 1388-2457; 1872-8952
• DOI: 10.1016/j.clinph.2011.08.009

Highlights ► Motor units generate force so the energy content of a MUAP is of interest. ► MUAP energy follows an exponential distribution, suggesting it directly reflects the force-generating capacity of the motor unit. ► MUAP energy correlates strongly with the MUAP Size Index.