i want to increase my jump

Definitely get an all-around good periodization plan worked out. During your off season, start by building a great foundation of stability and range of motion; then move into building strength; then finally convert the strength gains into power and explosiveness prior to the start of the season (so you peak by the time you hit the floor for the first game/tryout)

Derek Arsenault(CSEP-CPT)
Personal Trainer/Conditioning Coach
ONE TO ONE Health & Fitness Centre
Belleville, ON

coachdave
Hi, this info is taken from a jumping warm up drill aimed at rugby players not volleyball players, but the tips may help you.

Add jumping to your warm ups
Jumping is a crucial skill in rugby but one which is often poorly coached or not coached at all. Basic jumping skills can be built into your rugby warm-up drills and can easily be improved with coaching.

Preparation for jumping
The preparation for jumping needs the player to change his normal stance. The player should stand on the balls of the feet, drop the hips, and bend the knees, pulling the arms back at the same time. The feet should be no further than a shoulder width apart.

The action
Once the player has dropped into position, he has to “explode” up with his arms and legs. Get the players to jump using just the arms or legs and see the difference when they're using both together. Importantly, the arms need to go up with the hands, ending above the head.
Include some static vertical jumping at the end of your warm up drills. Give tips to correct the technique for individual players during each drill. Get players to work in pairs and see who can jump higher. As players improve their skills, have them catch a ball at the highest point of the jump and then get them to run a few paces and jump.

Include some static vertical jumping at the end of your warm up drills. Give tips to correct the technique for individual players during each drill. Get players to work in pairs and see who can jump higher. As players improve their skills, have them catch a ball at the highest point of the jump and then get them to run a few paces and jump.

@lucie: thanks for sharing such useful information, especially I like the preparing portion for doing a jump. It’s really educating enough for any new comer like me. I read different Sport magazines and articles on club sports but found this quite informative.