Abstract
Employing the test method reported by Matumoto et al., which is a sort of measuring selective reaction time to the stimulus of light, the grades of the ability of quick action on 541 subjects (239 males, 17-65 years, 302 females, 17-61 years) were measured. The obtained results were the following :
1. The full score of the ability of the individual subject was 10, and the score of the subject ranged from 0 to 10, the average score of the total subjects was 3.9±2.8, for the male subjects 5.9±2.4, for the female 2.3±1.9, but 70% of the subjects obtained the score between 2 and 5.
2. The average score of the subjects under and above 40 years was 3.9±2.9 and 4.0±2.0 respectively.
3. The average score of the boy and girl students of a high school was 6.3±2.1 and 1.6±1.2 respectively.
4. It was found that the score of the test of individual subject did not contradict the motion ability of the subject observed in daily life and in the sport.
