LynnBlakeGolf Forums - View Single Post - Bio Mechanics Thread: Bio Mechanics View Single Post #214 08-15-2009, 11:03 AM dkerby Senior Member Join Date: Jan 2005 Posts: 244 Rooting Wish that V.J. Trolio was in on the discussion. He has really made a study of the forward move which I call the Hogan Move. One of the things that V.J. says is as follows: On the right leg,knee, etc...As mentioned in the book the head will go down but not forward. This will increase the left knee flex quite a bit at the top.. some 15 to 20 degrees. There are forces that must be used by the pivot. One being longitudinal force into the ground, the other sheer forces. As you turn and move left, placing the center of mass over the left leg, the head will go down, the left knee will increase flex, and a force will be felt into the ground under the left foot. This is the longitudianal force. Once this force is in the ground (martial arts calls this rooting) then the instep of the right foot and the larger muscles of the left leg and glute are used to create sheer forces (forces that run parrallel to the surface of the ground) for extreme rotational ability. With that said, make sure you feelthe downward rooting into the ground. The new DVD by Trolio, showing concepts in the "The Final Missing Piece" book is very good. About $20.00, not expensive. dkerby View Public Profile Send a private message to dkerby Find all posts by dkerby