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Standing jumps ARE quad dominant. But in a correct sprint start, you better believe the posterior chain is engaged A LOT. I think if anything, the posterior chain is always engaged in a sprint, while the quads are only engaged in the begging more and the hamstrings start to kind of take over after you get out of the dig phase.

Quote from: Raptor on December 06, 2010, 06:55:16 pm

I remember the worst... it was that slow guy that jumped like 4 inches for the rebound jump.

it was some hockey guy, he lands and loads up for like 3 seconds swinging his arms back and forward, then jumps like 4".

lol

Yeah it's a way to suppress the stretch reflex, which is exactly what you should do for a depth jump since that's the key: remove any reactive rebound from the jump. Oh wait...

Maybe he read that it's more important to get higher than jump quicker, and he gets the highest off a standing vertical jump so he dropped, stopped and did a standing VJ. Or he could be retarded, who knows?

<a href="http://www.youtube.com/watch?v=Z5wLDiyq4dk" target="_blank">http://www.youtube.com/watch?v=Z5wLDiyq4dk</a>

If you pause it at the right time, that's ~40 inches.

I wonder what happens if you do a downhill sprint followed immediately by an uphill sprint. Like a \_/ running slope.

Yeah you bring some good points and I agree with you... more hip flexor work is imperative for good single leg jumping and sprinting, and it is indeed ignored. The problem is - most people aren't going to be limited by that. That's why the squats and strength movements still are the basic foundation of training.

It's interesting you mention the dumbbell BSS variant - I just did that yesterday and I have such sore glutes today you can't believe. Not much hamstring soreness though but probably the weight wasn't that much to challenge my hams which are very strong anyway. It also depends what kind of a stance you use when you do them (how much of a step forwards you take with the working leg).

If you look at Ced Norman, he does a lot of hip flexor training stuff, usually working with ankle weights to overload the legs a bit and make them heavier for exercises like leg raises etc.

Still, you can't say the quads aren't important, because the quads prevent the knee collapse in the amortization phase. That manages the amount of speed you can use in your plants which is extremely important in terms of elastic accumulation.

new squat stim:

while naked outside, after unracking the new PR weight, someone unleashes the mosquitos/bee swarm right as you you hit depth.

level-7.

That, or they release a death-sentenced gay rapist behind you when you're at the ... bottom so to speak.

Those are some long ass nets!