In comparison to the placebo drink , the ingestion of the caffeinated energy drink increased the ball velocity in the standing spike ( @ @ vs @ @ ms , P = @ ) and in the jumping spike ( @ @ vs @ @ ms , P = @ ) and the jump height in the squat jump ( @ @ vs @ @ cm , P = @ ) , countermovement jump ( @ @ vs @ @ cm , P = @ ) , spike jump ( @ @ vs @ @ cm , P = @ ) , and block jump ( @ @ vs @ @ cm , P = @ ) .