| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a finger pressure strengthening tool which allows a user to efficiently acquire strengthening of finger pressure and improving of the feeling of a fingertip for improving pitching (throwing) speed and pitching (throwing) control.SOLUTION: A finger pressure strengthening tool 1 for strengthening finger pressure applied at the time at which a thumb, a forefinger, and a middle finger hold a baseball ball includes: a finger pressing upper plate 3 and a finger pressing lower plate 4 which are respectively rotated around an axis 2 on one end side and provided so as to be openable/closable; spring means 5 which is attached between the finger pressing upper plate 3 and the finger pressing lower plate 4 so as to energize in a direction in which the finger pressing upper plate 3 and the finger pressing lower plate 4 open; and position changing means 6 which fixes a fitting end part of the spring means 5 to the finger pressing upper plate 3 and the finger pressing lower plate 4 and changes the position of the fitting end part between the portion close to the axis 2 and the portion far therefrom.</p> |
