楊亞紅跳馬側(cè)手翻直體側(cè)空翻轉(zhuǎn)體630176;運(yùn)動學(xué)分析

1、北京體育大學(xué)碩士學(xué)位論文楊亞紅跳馬側(cè)手翻直體側(cè)空翻轉(zhuǎn)體630°運(yùn)動學(xué)分析姓名：杜衛(wèi)鴿申請學(xué)位級別：碩士專業(yè)：體育教育訓(xùn)練學(xué)指導(dǎo)教師：姚俠文200510012Abstract The article reveals the rule of motions and still features of the 360° movement by the National Vaulting House champion

2、Yang Yahong. Through the methods of documenting, observating, interviewing as well as the reaching in 3 dimensional videotapeand analysis, which has provided the oretical evidence and refering skill data for the devel

3、opment and improvement on such significance for the promotion of our national women voulting house atheletes to break the record in the 2008 Olympic Games. The whole motion of the vailting house is consist of seven p

4、arts. And any dissertation is focus only on five sections, they are hitting the take-off board, first flight, pushing hards, secong flight and landing. According to the research, the 3times side hard changing into the

5、 straight body reverse in 630° dimension were all successful, supporting by the following five conclusions: ⒈O(jiān)n hitting the take-off board, her feet were cast on the front of the center of gravity, forming an angl

6、e of 65°. After the buffering the hitting was fast and strong, while the hitting time was only 0.88 seconds. She has already turning to the right while lefting the board, forming an angle of about 79°. ⒉Whil

7、e in the process of rising, her left hand was actively touching the house and kept on turning, accelerating swinging the legs. The time between takeing-off and her first flight only take 0.10seconds. ⒊She extend the ang

8、le between the shoulder, the elbow and kept the gesture of handstand. At the same time, her two legs kept on swinging, forming an angle of about 78° in the position of handstand by only one arm. ⒋The highest poin

9、t of her second flight was about 2.58 from the ground, with the time of around 0.98 seconds. She immerdiately began to turn left after her right hand off the house. The main impetus of the turning was the movement by t

10、he head and the shoulder. Her speed was changed into 15.07rad/s after a 630° turning, with the changing angle of 8.56rad/s. The main contradiction of her second flight is solving the speed while turning. ⒌The stre

11、tch and the exact turning are the premise of a good landing. While landing one must seize the opportunity and the angle. Her angle was about 63° while landing the angle of the kneel and ankle should be stretch for i