【摘要】 选取湖北省801名7～19岁的中小学生为研究对象,研究表明,青少年时期动作协调性发育具有一定的年龄特点.在小学阶段(7～13岁)向对称协调转变;9～13岁,在完成最大速度的动作时,完全由对称交叉反射协调关系取代.13岁以前,两腿交替动作的速度达到最大值.因此,在安排小学和初中体育健康课的内容时,应注意适当安排发展四肢交替的对称性运动能力的发展.ΔK作为表征协调性发展的动态指标,可以用来评价单个重复动作和两腿交叉性动作速度发展的动态变化;可在普通教育阶段的学校体育健康课教学效果检查中采用.更多还原

【Abstract】 It is one of the important tasks in the teaching of physical education class to develop the movement coordination for students’ limbs harmoniously. The problem that school physical education has to be faced to is to study the characters and laws about the movement coordination of limbs of juveniles with the change of their ages. This paper took the 801 students 7 to 19 years old from Hubei juvenior high and elementary schools as samples (M=390, F=411). The research showed during the juvenile period there is the character of age for the change of coordination in the growth of movement coordination. During the elementary school period from 7 to 13 years old there is a tendency with the change to symmetrical coordination, from 9 to 13 years old while finishing the movement with the maximum speed, the coordination of symmetrical cross reflex can substitute completely. Before 13 years old the speed with the change of two legs will reach the maximum. As to the contents of the course on physical education health in the elementary and junior high schools, the movement with change of four limbs properly should be arranged. Furthermore as a dynamic index to show the development of coordination, ΔK can be used to evaluate the dynamic change for the speed development of the movement with single repetition and the movement with the change of two legs, which can be used as the examination on the teaching effect of the course.更多还原