人体的任何运动都是通过以骨为杠杆,肌肉的收缩为动力来实现的。背越式跳高起跳要将助跑的水平速度转换成垂直速度,起跳腿所承受的负荷很大,况且起跳时并不是起跳腿的单一运动形式,而是要依靠摆动腿的上摆和上体的协调配合来完成。这样人体运动的复杂性, Any movement of the body through the bone as a lever, muscle contraction as the driving force to achieve. Fosbury Flop jump to the horizontal speed of the run to convert the vertical speed, take-off legs bear a lot of load, and take-off is not a single leg movement form, but to swing the legs by the upper and upper body Coordination to complete. This complexity of human movement,