| 摘要 |
PROBLEM TO BE SOLVED: To provide a fitting method of a shaft of a golf club, allowing a wide selection range for an installation location of an apparatus that is used, since the apparatus can be made small and light, and enabling fitting that reflects the whole swing.SOLUTION: A fitting method includes the steps of: obtaining measurement values from a sensor attached to a grip of a golf club and capable of measuring angular velocities about three axes when a golf ball is hit by the golf club; determining address, top, and impact of a swing from the measurement values; and selecting a shaft that matches a golfer through a usage of the following swing characteristic amounts of (a) to (d) obtained from the measurement values: (a) Amount of change of grip angular velocity in a direction of a wrist cock around the top; (b) An average value of grip angular velocity, from the top to a point during a downswing where a grip angular velocity in the direction of a wrist cock becomes a maximum; (c) An average value of grip angular velocity, from a point where a grip angular velocity becomes a maximum to the impact; and (d) An average value of grip angular velocity in the direction of a wrist cock, from the top to the impact. |
