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Muscle fiber conduction velocity studied by the multi-channel surface EMG.
Electromyogr Clin Neurophysiol. 1991 May-Jul; 31(4):251-6.EC

Abstract

Muscle fiber conduction velocity in single motor unit (MU) during voluntary contraction was measured by using the multi-channel surface EMG. The subjects examined were 28 normal controls (5-40 years old), four patients with myopathy and three patients with neuropathy. The tibialis anterior and the biceps brachii muscles were investigated at weak and moderate contraction levels. In normal muscles, the mean muscle fiber conduction velocity increased with muscle force (P less than 0.01). In three of four cases with myopathy, the conduction velocities were reduced compared to normal subjects (P less than 0.01), and there was little or no correlation between the conduction velocity and muscle force in myopathy. The conduction velocities were within the normal range in the muscles of patients with neuropathy. However, high-amplitude MUAPs with fast conduction velocities were detected during weak voluntary contraction in one case with neuropathy.

Authors+Show Affiliations

Kanagawa Rehabilitation Institute.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1652428

Citation

Yamada, M, et al. "Muscle Fiber Conduction Velocity Studied By the Multi-channel Surface EMG." Electromyography and Clinical Neurophysiology, vol. 31, no. 4, 1991, pp. 251-6.
Yamada M, Kumagai K, Uchiyama A. Muscle fiber conduction velocity studied by the multi-channel surface EMG. Electromyogr Clin Neurophysiol. 1991;31(4):251-6.
Yamada, M., Kumagai, K., & Uchiyama, A. (1991). Muscle fiber conduction velocity studied by the multi-channel surface EMG. Electromyography and Clinical Neurophysiology, 31(4), 251-6.
Yamada M, Kumagai K, Uchiyama A. Muscle Fiber Conduction Velocity Studied By the Multi-channel Surface EMG. Electromyogr Clin Neurophysiol. 1991 May-Jul;31(4):251-6. PubMed PMID: 1652428.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Muscle fiber conduction velocity studied by the multi-channel surface EMG. AU - Yamada,M, AU - Kumagai,K, AU - Uchiyama,A, PY - 1991/5/1/pubmed PY - 1991/5/1/medline PY - 1991/5/1/entrez SP - 251 EP - 6 JF - Electromyography and clinical neurophysiology JO - Electromyogr Clin Neurophysiol VL - 31 IS - 4 N2 - Muscle fiber conduction velocity in single motor unit (MU) during voluntary contraction was measured by using the multi-channel surface EMG. The subjects examined were 28 normal controls (5-40 years old), four patients with myopathy and three patients with neuropathy. The tibialis anterior and the biceps brachii muscles were investigated at weak and moderate contraction levels. In normal muscles, the mean muscle fiber conduction velocity increased with muscle force (P less than 0.01). In three of four cases with myopathy, the conduction velocities were reduced compared to normal subjects (P less than 0.01), and there was little or no correlation between the conduction velocity and muscle force in myopathy. The conduction velocities were within the normal range in the muscles of patients with neuropathy. However, high-amplitude MUAPs with fast conduction velocities were detected during weak voluntary contraction in one case with neuropathy. SN - 0301-150X UR - https://www.unboundmedicine.com/medline/citation/1652428/Muscle_fiber_conduction_velocity_studied_by_the_multi_channel_surface_EMG_ L2 - https://medlineplus.gov/muscledisorders.html DB - PRIME DP - Unbound Medicine ER -