... of the lefthand, the base of the first three fingers of the right hand and the left thumb. HeGROUND REACTION FORCES 7found that during the downswing the left thumb and right hand apply animpulsive ... relationship,combined with the current knowledge of ground reaction forces would help toexplain the segmental coordination of the legs, hips and torso. In order to gain abetter understanding of the swing and make ... of researchers4,11,14,15,17,24,26,27. The cocking and uncocking action of the wristsduring downswing is critical to achieving maximum clubhead velocity. The firststage of downswing begins with the wrists, shoulders, arms, hands,...