Here are a couple of resources to help you improve your vertical jump and volleyball quickness:
Speed Ladder – Find out how speed ladders (or agility ladders as they are also known) really can help to improve your physical fitness and help you to perform some rather nifty footwork. Using a speed ladder as part of your training helps you to train your feet to move faster, you’ll be fitter and stronger and the repetitive training methods improve muscle memory.
Jump Higher – Imagine not only have the speed to run around your opponents like they’re standing still, but also to jump a good few inches higher than you would ever have dreamed of. Using some of these specialized exercises and techniques can help to increase your vertical leap by 4, maybe even 6 inches . . . it’s hard work but stick at it and the results will soon come.