1. Subjects were action slow backswing and fast downswing. Thin Physique was faster than a fatty one. 2. The displacement of C.O.G was very details on anterior-posterior and superior-inferior but the displacement of Left-right was that thin physique w...
1. Subjects were action slow backswing and fast downswing. Thin Physique was faster than a fatty one. 2. The displacement of C.O.G was very details on anterior-posterior and superior-inferior but the displacement of Left-right was that thin physique was bigger than a fatty one. 3. The rotation angle of axis was that thin physique did rotation body segment on big rotation angle, But the viewing with foot-work that the fatty physique did the swing that it didn`t acted footwork. The fatty physique appeared small angle of the rotation hip joint, left sholder joint.