| Summary: | The practical class of motorcycle engine course which was held in the Engineering Faculty workshop of Padang State University was conducted in a squat position. This position does not comply with a healty working norm. A research was done to improve the procedure by using a motorcycle elevator in which the students can do the practicum in a standing position.
This experiment was done using one group pre and post test design which was intended to find out whether there was an improvement on comfort and fatique after changing from squatting position to standing position. It was done at the automotive workshop of the Engineering Faculty of Padang State University. The samples consisted of 20 students who have passed the motorcycle course. They conducted the main engine component practical classes in squatting position and standing position alternatively. After a practical class, they were given questionnaires on Body Area Discomfort Map (BAD) to measure discomfort. Before and after the practical class, the researcher assigned Reaction Timer L 77 to measure fatique. The time needed to finish the practical class was recorded. The data were analyzed using two way variance and one way variance statistical analysis of SPS 2000.
The result showed that (1) working in a standing position was very significantly more comfortable (p < 0,01) than in a squatting position, (2) working in a standing position caused very significantly less fatique (p < 0,01) than in a squatting position, and (3) working hours in a standing position very significantly shorten (p < 0,01) than in a s
quatting position
Keywords: comfort -fatique -working hours.
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