palm pad mechanism is used as a training device that is secured to the user's palm with a size adjustable elastic pad, and a fixing member for fixing the pad to separate the pad and the user's palm separated. The palm pad and further comprising a detection mechanism is disposed on the fixing member recorder to detect and record the movement data of the palm of the hand. The thickness of the elastic pad includes a pad and the pad with adjustable width, thickness and width of the divided pad. Practice basketball system using a palm pad mechanism of the sensor for recording the state of the basket successful shot, the palm pad mechanism disposed detected in the recorder, and generate a corresponding feedback spirit receiving data transmitted from the sensor detection writer and basket a central governing body for performing the analysis. ;
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