Accession Number : AD0726974

Title :   Optimal Work-Rest Schedules under Prolonged Vibration,

Corporate Author : TEXAS TECH UNIV LUBBOCK

Personal Author(s) : Dudek,R. A. ; Ayoub,M. M. ; El-Nawawi,M. A.

Report Date : 30 JUN 1971

Pagination or Media Count : 28

Abstract : Research was conducted for the purpose of studying the performance and recovery characteristics of men when subjected to low-level, whole-body vertical sinusoidal vibration for durations of one to two hours. Several male subjects performed a vertical compensatory tracking task using a CRT display according to three work-rest schedules under both normal and vibratory environments. The vibratory environment was that of vertical sinusoidal vibration with frequency of 5 cps and an amplitude of 0.08 inches resulting in an acceleration intensity of approximately 0.20 g. The working period was divided into equal intervals during which performance was continuously monitored. Decrement of performance was measured using absolute error score. Results and conclusions are presented regarding performance decrement and recovery under varying work-rest schedules. Optimum work-rest schedules and implications of control tasks under a vibratory environment are discussed. (Author)

Descriptors :   (*PERFORMANCE(HUMAN), STRESS(PHYSIOLOGY)), (*PSYCHOPHYSICS, VIBRATION), PERFORMANCE(HUMAN), MALES, TRACKING, DISPLAY SYSTEMS, MAN MACHINE SYSTEMS, TOLERANCES(PHYSIOLOGY)

Subject Categories : Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE