Studying nerve conduction velocity and latency of accessory nerve motor potential in normal persons.
In order to standardize Nerve Conduction Velocity(NCV), proximal and distal latency and amplitude of motor conduction in intact accessory nerves, a cross-sectional, descriptive-analytic study was done on 60 healthy persons with strict attention to number of cases, distance between stimulation sites, temperature and age. The average results were as follows: Distal latency 2.54 milliseconds (msec.) (2.25-2.83), Proximal latency 3.64 msec. (3.34-3.94), Amplitude 13.76 millivolts (mv.) (8.56-18.96) and NCV 67.98 m/s (56.95-79.01). The average latencies in women were significantly less than men, on both sides which can be due to higher superficial skin temperature in women.
Department of Physical Medicine & Rehabilitation, Shahid Beheshti University, Tehran, Iran.
M H
MH
Bahrami
S M
SM
Rayegani
A
A
Zare
D000055:Accessory Nerve / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003430:Cross-Sectional Studies; D004558:Electric Stimulation; D004576:Electromyography; D019054:Evoked Potentials, Motor / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000502:physiology; D009431:Neural Conduction / Q000502:physiology*; D011897:Random Allocation; D011930:Reaction Time / Q000502:physiology*; D012016:Reference Values; D012737:Sex Factors; D012881:Skin Temperature / Q000502:physiology