I do agree with everybody that says you need to improve your take off and plant. From what I can see, when the pole hits support (makes contact with the back of the box), your top arm is not fully extended upwards as it should be and you are also still on the ground - so you don't have a free take off and you're taking off a bit under. You are also taking off a bit flat in my opinion (or at least not as well as you could).
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- 4.05 Prac PVyeah.jpg (26.85 KiB) Viewed 8290 times
Here you can see that when the pole hits support, your top arm is quite bent and you still have not left the ground. Unfortunately youtube won't let me stop and take screenshots at any time so this is the closest I can get to showing what you look like the nanosecond before the pole will noticeably bend.
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- 4.10 Prac PVyeah (2).jpg (26.29 KiB) Viewed 8290 times
Similar situation here just a split second later in the jump compared to the first one. Note that this video was taken from a different angle. Personally, I prefer videos closer to the first one - a full side on shot of the take off is best. Though from what I can see this jump is better than the first.
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- Under Position PVyeah.jpg (27.98 KiB) Viewed 8290 times
This is what I like to refer to as the "Under Position". When you see a vaulter like this, there's a VERY good chance it was not a free take off and it was under. One of the big things to look out for is the displacement of the hips. Running under and not having a free takeoff will "rip" your upper body off the ground. Your hips will then rush forward in front of your shoulders putting you into this position in the air. This position will make your swing quite inefficient. If you fix it, you'll have a much better swing and more time in the air to finish all the aerial components of your vault. Also, you will not be able to apply all the energy you can into the take off because of the way you leave the ground - notice how your left leg tends to bend a lot just after take off. Ideally you would want the left leg to be relatively straight and driving back.
What I recommend you do is actually adjust your take off position and fix your planting action. Your plant is late causing you to not be completely extended at take off.
Practice the 6 step plant:
With each step keep in your mind - drop, two, three, plant, two three
"drop, two, three" - the first three steps you're moving the pole from the carry position (roughly 65 degrees) to the transition point (just above horizontal). You're moving your right arm only, left arm acts as a fulcrum.
"plant, two, three" - on "plant" the pole should be at the transition point and both arms should begin moving upward. When you hit "three" your top arm should be fully extended. If you were a guy using a big enough pole both arms should be extended (you don't have to worry about this
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)
Keep everything simple, practice it slowly walking first, moving on to a trot and then a six step (3 left) run. Learn the movement first before you put it to full speed.
You need to hit your take off point with the top arm as extended as possible. Believe it or not, this will actually help with the free take off!
You can do 2 step jumps from a stiff pole in the sand pit. Start by carrying the pole over your shoulder so you don't have to worry about the drop. Make yourself a little "plant box" in the sand, nothing drastic just something to make sure you're not planting way off course - planting too far forward can be a concern. Focus on taking off just before the pole hits the sand - at the same time have your top arm fully extended just BEFORE you leave the ground. From two steps (1 left), just push the pole up. When you hit the first step (right foot), your top hand should be roughly near eye level. After that just keep pushing upwards and you will be fully extended at take off. Very simple but extremely effective! Always keep it simple. This will be a different "sensation" or "feel" to what you're going to be used to at take off. It should feel like you're just floating in the air for a split second before the pole hits support - this is the feeling you need to get used to. Everything else will come much easier (including turning) if you accomplish this.
Whether you choose to take this advice or not, best of luck to you in your vaulting! And thank you for giving me an opportunity to test out this new little screen capture feature I just discovered!!! Seriously, you can take a picture of anything on your computer screen, it only uses microsoft paint and it takes like 10 seconds to get a picture done!!!
-Andrew