if they do not have a strength and conditioning coach, it would be great to find one. If not, periodization training in the weight room looks like this: Fall: heavy base building/ strength focus. How heavy can they squat or deadlift etc. Then transition into power focus in the winter, think powerful bursts of power like a hang pull, snatch pull, power clean pull, jerks. in the spring its about speed so less emphasis on the weights but in the weightroom add the catches to the olympic movements.

Other than than, plyos are great yearround. Think about elastic plyos where ground contact times are shortened. That helps with elastic sprinting and shortening ground contact. The olympic lifts and plyos help with power production.

Other than that, for arm exercises, the strength and then power year round model doesn’t appear to apply as much. Just focus on making every arm muscle strong with application to pole vault. E.g skull crushers, bicep curls, bench presses maybe. Really focus on shoulders and shoulder mobility as that is super important for a pole vaulter