Abstract
This report describes the results of a fundamental experiment for the purpose of developing a method to measure the office work load by the handwriting pressure. In this experriment, three tasks i.e. the posting, the mental arithmetic and the calculating machine operation were assigned to 12 subjects, and the handwriting pressure of each subject was measured berore and after each task. The rates of differences of the handwriting pressure obtained through the experiment have been statistically analyzed. As the result, it is concluded that the rates of differences are positive values in the posting task that is thought to give more physical load whereas they are negative in the mental arithmetic task that will give more mental load. In addition, the rares of differences in the calculating machine task have shown intermediate values between the afore-mentioned two values. This result can provide an important clue to develop a method that measures the office work load.
