Abstract
The purpose of this study was to examine connections among the driving distance, directionality, and flight trajectory of a driver club according to the choices of shaft weight. For that purpose, the study set shaft weight of 50g and 60g, which was much used by male golfers, and head speed of 105mph on a robot swing machine and did measurement and analysis. The findings led to the following conclusions:BR 1. It set the swing speed of the robot swing machine at 105mph and measured differences in driving distance, finding statistically significant differences between the 50g and 60g shaft(p〈.001).BR 2. It set the swing speed of the robot swing machine at 105mph and measured differences in directionality, finding no statistically significant differences between the 50g and 60g shaft.BR 3. It set the swing speed of the robot swing machine at 105mph and measured differences in flight trajectory, finding statistically significant differences between the 50g and 60g shaft(p〈.01).
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