Accession Number:

AD0697565

Title:

EFFECT OF VIBRATION IN VARIOUS HIGH-FREQUENCY RANGES ON CERTAIN PHYSIOLOGICAL FUNCTIONS OF THE ORGANISM OF THE WORKER,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1969-03-26

Pagination or Media Count:

10.0

Abstract:

The action of vibrations with a frequency up to 250 Hz on personnel working with pneumatic machine tools causes an increase in vascular tonus with an increase in vibration frequency to 300-800 Hz the character of the shifts is altered - a tendency to a reduction in vascular tonus is noted. One of the early manifestations of the influence of high-frequency vibration on the organism is a reduction in vibration sensitivity. The degree of change is in a definite dependence on the length of service, the duration of vibration action during a shift, and the frequency of the vibrations. In contrast to low- and medium-frequency vibrations, high-frequency vibrations do not lead to noticeable changes in algesic sensitivity the later cannot serve as a criterion for evaluating the effect of high-frequency vibration on the organism of the worker. Despite the absence of rebound and the insignificant stress of the muscles, working with a high-frequency rotary machine tool causes distinct changes in the motor apparatus of the arm. Author

Subject Categories:

  • Stress Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE