| 摘要 |
<p>A stroke training device includes a force application member (30) located between the user's body and a stroking device which will focus the force of body rotation at a constant radius as the user's body moves between backstroke, stroking, and follow through positions; the focus application member (30) includes a reference surface (36) located between the hand end of the stroking device and the user's body for defining a vertically extended reference plane located wholly between the hand end of the stroking device and the body within the constant radius of swing and moveable into a stroking or hitting plane including the object to be hit, which stroking and hitting plane is perpendicular to the line of contact with the object being hit for positioning the striking end of the stroking device within the stroking or hitting plane when the user's body is rotated into its stroking position.</p> |
