Age related changes in the motor nerve conduction velocity in dogs.
The motor nerve conduction velocity (NCV) was studied in the ulnar and sciatic-tibial nerves of dogs of various ages. The adult values are reached between six months and one year of age. The NCV remains on a plateau range of approximately 60 +/- 10 m/sec from one to seven years of age. After seven years there is a gradual decline in NCV so that by 10 years the velocity is reduced by 10-15 per cent. In addition to the reduction of velocity there is also an increased dispersion of the evoked muscle action potential.
D000375:Aging; D000818:Animals; D004285:Dogs / Q000502:physiology*; D005071:Evoked Potentials; D009046:Motor Neurons / Q000502:physiology*; D009132:Muscles / Q000502:physiology; D009431:Neural Conduction; D012584:Sciatic Nerve / Q000502:physiology; D013979:Tibial Nerve / Q000502:physiology; D014459:Ulnar Nerve / Q000502:physiology