| 摘要 |
The present invention senses three-dimensional directional information on the shoulder and pelvis from user's golf swing, collects, synchronizes, and stores the sensed three-dimensional directional information, analyzes the angle change between the three-dimensional directional information based on the stored data, extracts a top point of time of backswing, evaluates the twisted degree of the shoulder and pelvis based on the angle between the three-dimensional directional information at the top point of time of backswing, and provides feedback to the user. [Reference numerals] (100) Device; (AA) User's golf swing (twisted shoulder and pelvis); (BB) Feedback by level relative to the twisted degree of the shoulder and pelvis |
