Issues & Opinions
The concentric versus the monopolar needle electrode: The case for concentric needles
W. Trojaborg MD, PhD,
Corresponding Author
W. Trojaborg MD, PhD
Neurological Institute, 710 West 168th Street, New York, New York 10032, USA
American Association of Electrodiagnostic Medicine, 421 First Avenue S.W., Suite 300 East, Rochester, MN 55902, USASearch for more papers by this authorW. Trojaborg MD, PhD,
Corresponding Author
W. Trojaborg MD, PhD
Neurological Institute, 710 West 168th Street, New York, New York 10032, USA
American Association of Electrodiagnostic Medicine, 421 First Avenue S.W., Suite 300 East, Rochester, MN 55902, USASearch for more papers by this authorFirst published: 12 December 1998
Citations: 6
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References
- 1
Adrian ED,
Bronk DW:
The discharge of impulses in motor nerve fibres. II. The frequency of discharge in reflex and voluntary contractions.
J Physiol (Lond)
1929;
67:
119–151.
10.1113/jphysiol.1929.sp002557 Google Scholar
- 2
Buchthal F,
Clemmensen S:
On the differentiation of palpable muscle affections by electromyography.
Acta Med Scand
1940;
105:
48–66.
10.1111/j.0954-6820.1940.tb16081.x Google Scholar
- 3 Buchthal F, Clemmensen S: On the differentiation of muscle atrophy by electromyography. Acta Psychiatr Neurol 1941; 16: 143–181.
- 4 Buchthal F, Clemmensen S: Electromyographical observations in congenital myotonia. Acta Psychiatr Neurol 1941; 16: 389–403.
- 5 Buchthal F, Guld C, Rosenfalck P: Action potential parameters and their dependence on physical variables. Acta Physiol Scand 1954; 32: 200–218.
- 6 Buchthal F, Pinelli P: Muscle action potentials in polymyositis. Neurology 1953; 3: 424–436.
- 7 Chan RC, Hsu TC: Quantitative comparison of motor unit potential parameters between monopolar and concentric needles. Muscle Nerve 1991; 14: 1028–1032.
- 8 Chu J, Chan R-C, Bruyninckx F: Effects of the EMG amplifier filter settings on the motor unit action potential parameters recorded with concentric and monopolar needles. Electromyogr Clin Neurophysiol 1986; 26: 627–639.
- 9 Dorfman LJ, Howard JE, McGill KC: Influence of contractile force on properties of motor unit action potentials: ADEMG analysis. J Neurol Sci 1988; 86: 125–136.
- 10 Guld C: On the influence of the measuring electrodes on duration and amplitude of muscle action potentials. Acta Physiol Scand 1951; 25(suppl 89): 30–32.
- 11 Howard JE, McGill KC, Dorfman LJ: Properties of motor unit action potentials recorded with concentric and monopolar needle electrodes: ADEMG analysis. Muscle Nerve 1988; 11: 1051–1055.
- 12 Jasper H, Ballem G: Unipolar electromyograms of normal and denervated human muscle. J Neurophysiol 1949; 12: 231–244.
- 13 Kohara N, Kaji R, Kimura J: Comparison of recording characteristics of monopolar and concentric needle electrodes. Electroencephalogr Clin Neurophysiol 1993; 89: 242–246.
- 14 Kugelberg E: Electromyograms in muscular disorders. J Neurol Neurosurg Psychiatry 1947; 10: 122–133.
- 15 Kugelberg E: Electromyography in muscular dystrophies. Differentiation between dystrophies and chronic lower motor neurone lesions. J Neurol Neurosurg Psychiatry 1949; 12: 129–136.
- 16 Middleton L, Lovelace RE: Use of monopolar electrodes in automatic EMG analysis with ANOPS computer. Electromyogr Clin Neurophysiol 1985; 25: 539–548.
- 17 Peace WS, Bowyer BL: Motor unit analysis. Comparison between concentric and monopolar electrodes. Am J Phys Med Rehabil 1988; 68: 2–6.
- 18 Petersen I, Kugelberg E: Duration and form of action potential in the normal human muscle. J Neurol Neurosurg Psychiatry 1949; 12: 124–128.
- 19 Pollak V: The waveshape of action potentials recorded with different types of electromyographic needles. Med Biol Eng 1971; 9: 657–664.
- 20 Stålberg E, Andreassen S, Falck B, Lang H, Rosenfalck A, Trojaborg W: Quantitative analysis of individual motor unit potentials. A proposition for standardized terminology and criteria for measurement. J Clin Neurophysiol 1986; 3: 313–348.1026.