How to Jump Higher Tip #1: Lift Weights using your Lower back, Glutes, and Hamstrings (called the Posterior Chain).
Up to 80% of the force generated by your jump is from your posterior chain. Strengthen you posterior chain and you will increase the height of your jump.
How to Jump Higher Tip #2: Swing hard and fast downwards with your arms prior to your jump. This is cause your arms to swing hard and fast upwards causing an extra amount of height on your jump.
How to Jump Higher Tip #3: How high can you touch the sky?. Ensure you have reached your potential in height reach flexibility. This is done by reaching as high as possible with your arms and body towards the sky (try to touch the sky). Reach with each one arm and both arms for 15-30 seconds each.
Depending on your current flexibility, you may be able to gain an extra 2 inches in your height reach and this is as good as increasing your vertical by 2 inches.
How to Jump Higher Tip #4: Make your midsection bullet proof. The force of your jump starts from your lower body and moves upwards through your midsection to your upper body. If you have a weak midsection, some of the force will be lost and you won't jump as high as you could be.
How to Jump Higher Tip #5: Get rid of your bodyfat. Try to jump as high as possible with an extra 10, 20, 30 pounds. You will find out that you can't jump as high with the extra weight. Imagine how high you can jump if you lost 10, 20, 30 pounds of bodyfat. Make sure not to lose your muscle while losing the extra bodyfat.
How to Jump Higher Tip #6: Jump in sand. It is much harder to jump as high as possible in the sand but it also provides a much softer landing. Volleyball players have done this for years with huge improvements to their vertical jump.
How to Jump Higher Tip #7: Ring the bell. Set up a bell so that it is situated approximately 3-4 inches from your maximum vertical jump. Stand under the bell and try to ring it as many times possible in 10 jumps. Once your able to ring the bell all 10 times, move the bell higher as your vertical jump is higher.
That was 7 tips on How to Jump Higher. For a more synergistic and compressive method, visit The Vertical Project.