2013 Volume 89 Issue 2 Pages 33-39
The purpose of this study is to adjust the range of working table surface height. Experimental conditions for the table surface height were set at 5cm, 10cm, 15cm, and 20cm between working surfaces and elbow height. Forty-four male and female students participated in the experiment. The results of a questionnaire on the easy rate for conducting the task showed the preference for 10cm table height. On the other hand, the task was hard at 20cm table height. The ranking of easy task based on the results of the questionnaire, was 10cm, 15cm, 5cm and 20 cm table height. The results were statistically significant (p<0.001). The maximum frequency of trunk inclination was noted between 0 to 10 degrees at all the experimental conditions. In this study, the preferred working table height was at 10cm between working surface and elbow height. According to the results of the questionnaire, the rate of trunk inclination was 10cm ± 5cm table height. These results showed the need to make adjustments for working at comfortable table height. The adjusting range should be around 10cm between working surface height and elbow height.