| 摘要 |
Form-correcting chest belt, forcing both arms, shoulders and chests to move in co-relation with one another, is used together with form-correcting waist belt, forcing the vertebral column to become stiff and the upper and lower parts of the body to move in co-relation with each other, and together with form-correcting shoes or foot angle supporter, which semi-force body weight center to be located in the middle of the foot length, thereby helping players play easily in the right forms the sports using rackets or bats or clubs, such as tennis, badminton, baseball and golf,
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