A quantitative evaluation of golf swing

The purpose of this study was quantitatively evaluate golf swing. This was performed by comparing the physiological and kinematical factors of the experts and beginners. A system for measuring impact was built to acquire a club head trace. The results obtained showed that the club head speed of experts appeared to have values about 8.6% over that of beginners, and the speed with club3 showed was about 7.9% higher than that of a club7. In the case of beginners, an increase of club length did not cause an increase in club head speed. In terms of address time, experts were shorter by about 20.6% than beginners, but there were no significant differences among types of irons used for both experts and beginners. Dominant a waves when static case mean that a golfer maintains a stable mental state. β and β II waves were larger in the right hemisphere than in left, and a wave are lower in the right hemisphere. During the swing, β and β II waves are dominated high strong concentration, a waves were dominant and β, β II waves attenuated in the right hemisphere.