There’s a potentiation protocol called the French Contrast Method that practitioners use to temporarily increase vertical jump height. This could be an effective strategy for track and field as well as other athletes, and a study published in the Journal of Strength and Conditioning Research suggests it might be an effective option.

Seventeen athletes had their countermovement jump height measured before and after performing 3 sets of isometric partial squats, drop jumps, dynamic half-squats and hurdle jumps. Countermovement jump height improved an average of 5% after the first set, 6.8% after the second set and 8.5% after the third set. Maximum potentiation was an increase of 11% from baseline values.