运用静力学原理对背越式跳高教学中的杆上一瞬时的反弓身动作技术进行了研究 .作者认为 :要做到运动员身体从杆上越过 ,而人体重心则从杆下通过 ,必须加大运动员过杆一瞬间的反弓身弧形弯曲度 ,并得出 :如果(R-yc) >0 ,则人体重心就可以处在横杆之下 ;如果 (R-yc) <0 ,则人体重心就会处在横杆之上的结论。因此 ,在教学中 ,应加强杆上反弓身孤形弯曲度动作技术训练 The author uses the principle of statics to study the anti-bow-body action technique in the back-pole jump teaching.The author thinks: To make the athlete’s body cross the pole and the body center of gravity pass under the pole, we must add If the (R-yc)> 0, the body center of gravity can be located under the crossbar; if (R-yc) <0, then The body center of gravity will be at the conclusion of the bar above. Therefore, in teaching, should be strengthened on the pole anti-arcuate solitary curvature action technical training