Sciatic nerve motor conduction velocity study.

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Abstract
Sciatic nerve motor conduction velocity was found to be 52.9[plus or minus]3.9 m/sec. for a distance of 32.5v3.1 cm. That of the medial popliteal nerve from knee to ankle, 40.9[plus or minus]2.2 cm, was 43.4[plus or minus]3.1 m/sec. and that of the lateral popliteal nerve from knee to ankle, 37.5+1.9 cm, was 45.5[plus or minus]3.2 m/sec. A change in motor nerve fiber diameter due to branching and tapering of the distal segment was given as a possible reason for proximo-distal decrease of conduction velocity.