摘要
通过对掷铁饼技术的分析,研究了掷铁饼过程中,人体重心、肩、髋、腿、脚的方向、位置与速度的关系及其相互之间的连贯性,从不同角度分析了旋转掷铁饼技术的各环节及最后用力技术中人体-器械系统的速度特征,指出应加强第一次双支撑到腾空再到第二次双支撑以及最后用力阶段的衔接,正确把握旋转速度,提高旋转后动能的转移和出手时的拨饼技术,以保证铁饼在出手前有更长的加速轨迹.
The author investigate and analysis the gravity center of body of discus thrower and the speed,direction and position of shoulder,hip, leg, foot and their coherence. At the same time, the author also investigate the final force in rotate discus in all stage of making discus and the features and laws of sports biomechanics of the body and equipments. The author found that the key in rotate discus is the rotational speed. The author also point out that the best connection of the first double bracing and rise the second double bracing and to enhance the transfer of rotating kinetic energy together with shooting tech- niques to accelerate motion curve.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
北大核心
2014年第1期126-128,132,共4页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
内蒙古自治区体育科学研究项目(NTS201220)
关键词
铁饼
旋转
速度
运动学特征
discus
rotation
speed
kinematics characteristic
