抄録
"Interval" which was recognized in Japan has not examined scientifically. In this study, "Interval" was related to short break of fingers motion in making "Kanaami". The purpose of this study was to examine "Interval" from the point of view of acceleration value in fingers motion. The duration of "Interval" defined as -0.9〜0.9m/sec^2. As a result, there was "Interval" in around 15〜40% time after main task started. According to this result, it was considered that there was "Interval" in the working time.
