We examined the influence and characteristics of vision training on sports vision. In addition, using free throw of basketball competition as an indicator, we conducted the experimental study about the applicability of vision training to improving competition. The outline of the obtained knowledge is as follows. 1.The transition of the total score of the sports vision measurement showed a significantly higher value in the training group than value in the control group. 2.No significant sequential change both in the training group and the control group was observed in the coefficient of variation of the total score of the sports vision measurement. 3.When classifying the training group into the upper group or the lower group by the total score of the sports vision measurement, the upper group showed a significantly higher value in the salivary α−AMY activity value after the sports vision measurement. In addition, the sympathetic nervous system activity index based on heart rate variability during sports vision measurement also turned out to have a tendency to show high value. 4.When classifying the training group into the upper group or the lower group by the total score of the sports vision measurement, the upper group showed a significantly lower value in the coefficient of variation of salivary α−AMY activity value before and after the sports vision measurement. 5.It was suggested that the deviation of the shot in the anteroposterior and lateral directions can be reduced by the vision training for those who have inexperienced basketball competition. It was suggested that vision training improves sports vision, and also is useful for the athlete with low competition level to improve the competitive performance. In addition, it was inferred that sports vision might fluctua te reflecting the intrinsic influences such as sympathetic activation and degree of attention caused by the response to the stimulus
