| 摘要 |
A gyroscope assembly is mounted within a sports instrument swing aid. A motor is connected to a rotor within the gyroscope assembly. A power source drives the motor to rotate the rotor. During a forward swing of the swing aid, an angular momentum of the rapidly spinning rotor tends to maintain the swing aid parallel to a plane of the swing. A reaction torque from the gyroscope assembly may be sensed by a player if a player's wrists are rotated in a release, and may also be sensed if a parallel relationship of the swing aid to a plane of the swing is not maintained. The swing aid may be in the form of a bat or racket.
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