The main purpose of any plyometrics workout is to develop the fast twitch muscle fibers and train them to react at the exact same time. This means that you can’t actually speed up the rate at which the reaction occurs but you can train to make each fiber fire at almost the same time and this will in turn cause more force and power.
When people want to learn how to jump higher, they often times go about it in every wrong way possible. Plyometric exercises are to be done with fresh legs, not at the end of a hard leg workout where you have exhausted them. This might be good for building muscle because you are trying to recruit new muscle fibers that usually don’t get a workout because the other fibers are tired. But with jumping you aren’t trying to get your muscles to grow and get all big and bulky. You are trying to teach your muscles to react a certain way when they feel a stretch in your knees from bending. When you bend, the patellar tendon in the knee is stretched and this will cause a reaction that happens so fast your brain isn’t even aware of it. The nerve impulse goes to the spinal cord and then back to the muscles to tell them to straighten fast because the patellar tendon is getting stretched. It is the way your body naturally tries to protect itself. It doesn’t know if it is going to keep getting stretched until it breaks, so it straightens your leg as fast as possible. This is why when a doctor hits your knee with the rubber mallet, your foot kicks out. The doctor is causing that tendon to stretch and your body reacts accordingly. A plyometric workout is the best way to learn how to jump higher.
So before you think you have jump training all figured out, you need to be aware that you train very differently when doing plyometrics. Be smart and follow a well designed jump program. Click Here to see the program I recommend.