[Usefulness of determining the conduction of sensory nerve fibers in the diagnosis of vibration disease].

Thirty two metallurgical industry workers exposed to vibration (I group) and nine workers of the same industrial plant but unexposed to vibration (II group) underwent the following tests: electromyography--abductor dig. V, and abductor pollicis brevis, conductability of sensory fibers n. medianus and ulnaris, conductability of motoric fibers of n. ulnaris. In the third, control, group twenty five men had conductability norms determined. The results have been statistically analysed. Electromyography appeared more useful for the diagnosis of early symptoms of the vibration disease than for nerves conductability tests. The tests of sensory nerves conductability exhibit frequent deviations in the II group workers. Positive correlation was found between electromyography and nerves conductability findings.