Table 3. Phase related kinematic and kinetic data for male scratch subject. Male Scratch Data Type Phase I Phase II Phase III End Value % Change End Value % Change Ball Contact % Change Club Head Vel 30.3% +30.3% 90.4% +60.1% 100% +9.6% Grip Velocity 39.7% +39.7% 100% +60.3% 100% +0% Grip Accel 34.8% +18.4% 82.6% +47.8% 100% +17.4% Tang Accel 37.1% +30.4% 100% +62.9% 0% -100% Normal Accel 32.4% +32.4% 66.9% +34.5% 100% +33.1% Swing Torque 66.0% +31.4% 100% +24.0% 0% -100% Mag of Force 21.5% +19.2% 87.9% +66.4% 100% +33.6% Tang Force 53.3% +41.0% 100% +46.7% 0% -100% Normal Force 7.7% +7.7% 24.3% +16.1% 100% +75.7% Total Work 35.5% +35.5% 89.5% +39.0% 100% +10.5% Linear Work 58.5% +58.5% 91.4% +32.9% 100% +8.6% Angular Work 17.6% +17.6% 87.3% +69.7% 100% +12.7% Total Power 30.6% +30.6% 100% +69.4% 0% -100% Linear Power 37.6% +37.6% 100% +62.4% 0% -100% Angular Power 22.0% +22.0% 100% +78.0% 0% -100%