Relation between muscle fiber conduction velocity and fiber size in neuromuscular disorders

被引：91
|
作者：
Blijham, P. J.
ter Laak, H. J.
Schelhaas, H. J.
van Engelen, B. G. M.
Stegeman, D. F.
Zwarts, M. J.
机构：
[1] Radboud Univ Nijmegen, Nijmegen Med Ctr, Inst Neurol 920, Dept Clin Neurophysiol, NL-6500 HB Nijmegen, Netherlands
[2] Interuniv Inst Fundamental & Clin Human Movement, Amsterdam, Netherlands
[3] Radboud Univ Nijmegen, Nijmegen Med Ctr, Inst Neurol, Neuromuscular Ctr Nijmegen, NL-6500 HB Nijmegen, Netherlands
[4] Radboud Univ Nijmegen, Nijmegen Med Ctr, Inst Neurol & Pathol, NL-6500 HB Nijmegen, Netherlands
来源：
JOURNAL OF APPLIED PHYSIOLOGY | 2006年 / 100卷 / 06期
关键词：
electromyogram; muscle biopsy; muscle fiber potentials; propagation velocity;
D O I：
10.1152/japplphysiol.01009.2005
中图分类号：
Q4 [生理学];
学科分类号：
071003 ;
摘要：
To determine the relation between muscle fiber conduction velocity (MFCV) and muscle fiber diameter (MFD) in pathological conditions, we correlated invasively measured MFCV values with MFD data obtained from muscle needle biopsies in 96 patients with various neuromuscular disorders. MFCV was significantly correlated with MFD and independent of the underlying disorder. Pathological diameter changes were fiber-type dependent, with corresponding MFCVs. A linear equation expresses the relation well: MFCV (m/s) = 0.043(.)MFD (mu m) + 0.83. We conclude that fiber diameter determines MFCV largely independent of the underlying neuromuscular disorders studied.
引用
收藏
页码：1837 / 1841
页数：5
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