You can get higher in many ways.
1.Watch your form and apporach I cant tell you how many times I have seen kids just run and jump at the bar without proper form that kills them in later heights.
2. Shoes if your not wearing spikes chances are your sliping when you go on your curve causeing you to lose momentum and your center of balance is off
3.Work out your legs with lunges and bleachers
4.Hops 2 sets of 30 seconds on each leg(you lift one leg and hop in a small square touching all four coners with your ball of your foot. Fellow high jumper- My secret to winning every meet is the warm up before the meet starts, you have to be selfish in getting practice jumps in and get your legs warm and the blood pumping before you jump. lean in a tad bit more on the later end of your "J" giving you more spring as you jump straight up. Form is the most important part- I'm only 5'1" and I can jump 5'4" because i have great form and high speed. good luck!
Ok well i don't know how to increase the jump much except for stretching, working on some plyometrics, and trying to get an adrenaline rush. Here is some tips
1) Slowly run the half of the way to the pit and the other half sprint your ass off and make sure you take off on you preferred foot.
2) Count you steps perfectly. Its important you take off on the your preferred foot and that you come up to the pit in perfect steps so your not trying to take short steps before the jump or long strides before the jump to fill the gap.
jumping stilts or pratice run faster
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