我国举重界在近几年的举重教学改革中,教练员们对上挺式问题展开了热烈的讨论,根据静力学原理和运动学原理对下蹲式与箭步式上挺动作进行了分析和比较。 Weight lifting in our country in recent years weightlifting teaching reform, coaches on the very type of issue launched a lively discussion, according to the principle of static mechanics and kinematics principles of squatting and jib-step up and down the action were analyzed and compared .