degrees rotation
4.was stimulated by a sudden stop after the subject has performed a rotation at a constant angular velocity of 90 degrees per second for more than one minute. Twenty-four parameters were acquired from post-rotation ENG and analysed by a special computer programme of ENG. The subjects: 16 elite women gymnasts, 34 ordinary women gymnasts and 36 ordinary women students.
6.The result and discussion show three conclusions. 1. sternoclavicular joint should berd backward as best as the subject can, 2. the best finish effect can be obtained when both hands lift behind and parallel the ground, 3. the rotation angle of the trunk should be within go degrees under the circumstance of hands lifting behind and paralleling the ground.
