CAJ | 학술논문

在完成整个跳远的过程中,起跳技术是衔接助跑与腾空的中心环节,也是运动员创造优异运动成绩的必保障.通过两台JVC9800高速摄相机和Ariel图像解析系统对8名优秀男子跳远运动员进行运动学分析.结果表明：现阶段我国优秀男子跳远运动员着地角、扇面角和蹬地角都与国外运动员具有显著性的差异;缓冲时间过长,起跳瞬间身体重心投影点较远,是影响快速支撑蹬伸起跳的因素,增强起跳腿的力量有助于提高跳远的成绩;起跳瞬间踝关节角和膝关节角较小,髋关节角度与世界优秀运动员较为接近;腾起水平速度高于国外选手,但是腾起的垂直速度比国外运动员低.
재완성정개도원적과정중,기도기술시함접조포여등공적중심배절,야시운동원창조우이운동성적적필보장.통과량태JVC9800고속섭상궤화Ariel도상해석계통대8명우수남자도원운동원진행운동학분석.결과표명：현계단아국우수남자도원운동원착지각、선면각화등지각도여국외운동원구유현저성적차이;완충시간과장,기도순간신체중심투영점교원,시영향쾌속지탱등신기도적인소,증강기도퇴적역량유조우제고도원적성적;기도순간과관절각화슬관절각교소,관관절각도여세계우수운동원교위접근;등기수평속도고우국외선수,단시등기적수직속도비국외운동원저.
Mass media, as a communication tool, provides a convenient and efficient way for the communication and development of sports. With its rapid development, mass media has become the important external force into the internal world of sports, thus bringing about the new changes of the sports life style and mode. Mass media plays the instrumental role in sports life and has significant impacts on it, so in the era of highly developed media, on the one hand, the public should take the cautious attitude to reasonably examine and distinguish the elemnts of mass media; on the other hand, the mass media should take the corresponding responsibility to spread sports culture positively.