对少年运动员韩非推铅球技术的节奏分析

Technical Analysis of Juvenile Athlete, Han Fei's Rhythm in Shot Putting

采用日本松下M90型录像机 ,拍录韩非比赛状态的 6次试掷技术。对其 6次背向滑步推铅球完整动作 ,采用中国爱捷公司人体运动图像测量仪 ,采集有关数据 ,对数据进行统计学“一元回归”处理 ,探索时间节奏与成绩之间的内在联系规律 ,并进行技术分析。结论 :韩非背向滑步推铅球技术 ,在A .C .D .三个动作阶段呈现出时间节奏短成绩高的相关性。其滑步后左脚下压的时间节奏长虽然与成绩呈正相关 ,但这是一明显的错误定型。如果缩短滑步的时间 ,改进左腿过渡步动作阶段的错误动作定型 ,其铅球成绩将取得长足的进步。

A Panasonic video tape recorder (M90) is adopted to shoot Han Fei's skills of trail throw for 6 times at the competition state. The correlated data of the integral movements of shot putting by backward sliding steps were collected for 6 times with the Body Movement Image Survey Apparatus made by AI JIE corp. China. The data were processed by statistical unitary regression in order to explore the laws of the internal relation between the time rhythm and results. And technical analysis was conducted as well. It was concluded that there appears to be relativity between the short time rhythm and effective results in the A. C. and D. phases of Han Fei's backward sliding shot putting skill. Though the time rhythm of pressing down his left foot after the sliding steps is positively correlated to the results, it is obviously a wrong pattern. If the duration of the sliding steps was shortened and the wrong dynamic stereotype in the phase of the transitional movements of the left leg was improved, Han would make quite great progress in his results of shot putting.