运用生物力学理论论述跨栏跑的技术

A discussion on athletic sports skills of the hurdle race by the theory of the biomechanics

结合自己30余年教学实践体会,运用生物力学理论,从运动轨迹、身体重心的抛物线、抛物线起止点和所对的弦长、线速度、抛射角、相向运动和补偿运动、空中身体的转动等对跨栏距标木进行了详细的论述.

Thes article discusses the athletic sports＇ skills in hurdle race by applying the theory of the biomechanics. A lot of concepts are applied such as the moving locus, the parabola curve of the body center of gravity, the jumping offpoint and the jumping dead point of the parabola curve, the chord length, the linear velocity, the catapult angle, the relative motion, the compensator motion, the rotation of body in space and so on.