引言:臂立向后翻腾加转体类动作是05年国际新规则调整难度系数后,跳台跳水难度发展选择的一个新动向。选择这个发展方向的主要动因有三:第一、该类动作比臂立向前翻腾转体动作在学习上更容易掌握;第二、该类动作更有发展空间;第三、难度系数值大于臂立向前翻腾转体类动作。在06年上半年冠军赛中有5人比较好的掌握了6245d动作,其中 INTRODUCTION: After the arm is tilted backward and the swivel action is a new tendency of difficulty in the development of the diving jumping after the adjustment of the degree of difficulty of the international new rules in 2005, There are three main reasons for choosing this direction of development: first, the type of action is easier to learn than the step-up and turn-over action of the arm; second, there is more space for such actions; and third, the degree of difficulty is greater than the arm Stand forward tumbling swivel class action. In the first half of 2006, there were 5 people who mastered the 6245d action better