Work Shift Analysis by Using Psycho-physiological Method

摘要

This paper presents a study of work shift analysis on security workload. Six security employees were involved in this study for two work-shift periods (morning and night). T - test was used to determine the differences of psycho-physiological fatigue before and after working. The survey was conducted to identify some complaints. Physical fatigue, pulse, blood pressure (systolic and diastolic), and skin temperature were also checked to determine the physiological fatigue. In addition, motivation, psycho - social, and psychological complaints were identified to define the psychological fatigue by using an independently developed questionnaire. The results then shows some differences about the physical fatigue aspect in which the averages are 32.2 before and 28.2 after working. The average pulse aspects are 65.6 beats/min before and 93.2 beats/min after working respectively, the average blood pressures are 121.8 mm Hg before and 127.7 mm Hg after working for systolic aspect. For diastolic aspect, the average blood pressures are 71 mm Hg before and 75.9 mm Hg after working. Skin temperature is 34.8 C before working and 34.6 C after working. The result of this study also shows some differences on psychological fatigue where the mean work motivation was 21.5 before working and 24.7 after working, psycho-social was 13,5 before working and 14.3 after working, and psychological complaint was 50.8 before working and 40.83 after working.