Rehabilitation technique of proprioceptive neuromuscular facilitation applied to volleyball vertical jump: A randomized double blinded cross-over clinical trial.

Objective: compare the acute effect of lower limb stretching exercises with proprioceptive neuromuscular facilitation (PNF) on the antagonist and agonist muscle groups in the execution of a vertical jump (VJ).

Method: a randomized, double-blind, crossover clinical trial was conducted involving 30 male volleyball athletes. Group A engaged in PNF on the antagonist muscles, while Group B applied the same method to the agonist muscles.