REBOUND CHARACTORISTICS OF BASEBALL IN DIFFERENT SURFACES

INTRODUCTION: In recent years, the number of cases to introduce artificial turf in various fields as sports surface has increased. In Japan, many of stadiums that are the field of professional baseball have adopted artificial turf. In soccer and rugby, the guideline for the field of artificial turf is formulated by these associations. But, such a guideline doesn't exist for baseball stadiums. This research aims to prepare basic data for guideline of the baseball stadium by comparison test between the fifth generation artificial turf, previous generation artificial turf, natural turf, and soil