An athletic event in which competitors attempt to vault over a high bar with the aid of an extremely long flexible pole.
Meaning of Pole Vault by Lexico
The physics of the pole vault are simple...
Horizontal kinetic energy is generated in the approach...
...which is transferred into the pole creating elastic energy...
...which is transferred into the vaulter as vertical potential energy.
Simple progressions are the best progressions!
This video does a great job of breaking down the simplicity of progression in order to develop the correct body positions during the vault. Pay particular attention to the section detailing the sand pit progression.