许多教练员和运动员都认为使用一根稍硬的撑竿能跳出好成绩。因此,大家也明了在训练中选择撑竿就有了限制,问题是一个运动员如何去发现一根较有效的撑竿。为使撑竿——运动员系统转动起来,需要动能。该转动动能是受抵抗这个系统的力量和竿子弯曲的半径影响的。(图1)一个撑竿跳高运动员使用一根达不到最大弯曲度的竿子,与能达到最大弯曲度的竿子相比,有较大的半径。(根据我们的研究,竿子在最大弯曲度的67.70%时缩短 Many coaches and athletes agree that using a slightly harder pole results in a good result. Therefore, we also understand that there is a limit to selecting a pole in training. The question is how an athlete can find a more effective pole. To make the pole - the athlete’s system, it needs kinetic energy. The rotational kinetic energy is affected by the strength of the system and the radius of the pole bending. (Figure 1) A pole vault athlete uses a pole that does not reach maximum curvature, and has a larger radius than a pole that achieves maximum curvature. (According to our study, the pole shortens at 67.70% of the maximum curvature