Abstract: A golf pronation and training device comprises a first member adapted for attachment to an upper forearm of a golfer and a second member adapted for attachment to the hand of the golfer. A torsion spring is interconnected between the members for preloading the device with a predetermined magnitude of torquing force when the device is attached to the upper forearm and hand of the golfer. The device functions to rotate the golfer's lower forearm and hand to thereby "release" a golf club immediately following the moment of impact of a club head with a golf ball. In addition, the device induces a "square-to-square" relationship during a golfer's backswing.