Analytical Study on Teaching Method of Physical Education for Lower Skilled Student's

摘要本研究旨在探讨高、低技能女学生在某些运动技能上的运动特征。选择了障碍赛跨栏技术、单杠连续动作技术和足球踢腿技术。采用运动学方法对各技能的运动性能进行了分析。主要研究结果如下：对跨栏技术中的起跳初速、起跳长度、起跳长度、起跳速度、最大重心高度、起跳角度、跨栏时躯干倾斜角度、着地时躯干倾斜角度等8个变量进行了分析。结果表明，低技能学生的起跳长度比高技能学生短，起跳速度比高技能学生慢。单杠动作依次为套头、前滚、前滚落地。变量为：穿套衫时脚的上摆角、脚的上摆速度、头向后倾斜角度和膝盖角度的变化、躯干旋转速度、躯干旋转角速度。躯干倾斜角度、前滚时膝盖角度变化及前滚落地时脚尖轨迹。结果表明，水平低的学生在单杠上转动躯干的流畅性不如水平高的学生。分析的变量包括踢球的初始速度、踢球脚的速度、髋关节和膝关节的角度、踢球的投影角度和身体各部分的水平移动距离。结果表明，技术水平低的学生在利用身体部位有效踢球方面不如技术水平高的学生。

The purpose of this study was to clarify the kinematical characteristics of the high and low skilled female students on some selected moter skills. The techniques of hurdling on obstacle race, successive movements on liorizoiital bar and kicking of soccer ball were chosen. The performances of respective skills were analyzed kinematically by means of einematography. The main results were as follows;1. Hurdling on obstacle race Eight of variables on hurdling techniques were analyzed such as initial velocity of take-off, take-off length, landing length, rate of take-off length, maximal height of center of gravity, take-off angle, angle of trunk lean during hurdling, and angle of trunk lean at landing. As the results, the low skilled students were shown to be shorter on take-off length and slower on velocity of take-off than the highly skilled students.2. Movements on horizontal bar The successive movements were pullovers, forward rolls and forward roll landing. Variables were swing-up angle of foot, awing-up velocity of foot, backward lean angle of head and changes of knee angle during pullovers, the velocity of trunk rotation, angular velocity of trunk rotation. angle of trunk lean, and changes of knee angle during forward rolls and locus of tip toe during forward roll landing. As the results, the low skilled students were shown to be inferior on rotating the trunk around the horizontal bar smoothly to the highly skilled students.3. Kicking of soccer ball Variables analyzed were initial velocity of kicked ball, velocity of kicking foot, angles of hip and knee at ball inpact, angle of projection of kicked ball and horizontal moving distance of body segments. As the results, the low skilled students were shown to be inferior on utilizing the body segments to kick the ball efficiently to highly skilled students.