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ADARQ & LanceSTS - Q&A / Re: Three types of depth jumps
« on: May 19, 2011, 01:23:57 pm »Well I haven't have this occur too much lately in the one leg jump, but it does occur in the two footed version... the quad overload there is incredible (meaning - I just overload the quads and then everything stiffens up).
I remember Kelly telling me it's a hamstring thing as well years ago, but I don't really believe that. I'd go as far as to say that my hams are incredibly strong (I could and probably can do 8+ natural glute ham raises) so if anything, then maybe yeah, they don't "activate" or whatever properly when subjected to dynamic stuff. In fact, I can even remember occurences when I could feel the ham fail in a jump (it just feels like a huge weakness under the leg and you jump 8 inches once that happens).
cool, both kelly and I are probably wrong then, and youre probably right.

I already addressed the people saying "my hamstrings are strong/arent strong because of xxxx exercise in the WEIGHT ROOM. ITS COMPLETELY DIFFERENT, and different body types/levers are going to have an easier time with natural glute hams/glute hams anyway. But when you add in the element of SPEED, and the hamstring has to contract both isometrically against it and concentricallly, things change.
Also, wouldnt you say that you can jump better than an average person off one leg? I wonder if the fact that your hamstrings are stronger than an AVERAGE persons has anything to do with it. People are funny, they dont realize that what they are already GOOD at , might need to improve MORE, to keep improving their craft.
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I'm not sure what stiff single leg bounding is though. And prime times feel so easy, like I'm doing nothing.
I assume you refer to this:http://www.youtube.com/watch?v=WU7t5w0DbWE
That is the BEGINNING progression, and if its easy, use a run in before you do it, the more speed you use, the more intense it becomes. Once youve mastered those, you go into single leg bounds on the SAME leg, stiff legged, which is extremely intense, and if you can do them at close to full speed, youre a good one leg jumper no question.
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But yeah, my question was initially about the two footed jump, but it hinted a bit towards the one-leg version as well.
Also, why not think about the one-leg jump as a spring ? I mean, I've jumped with both a lever and spring mindset and it was OK, I think the lever thing works well with more reactive and light people, while the spring works better with strength-oriented and heavier people. I get that once you try to use ONE LEG as a spring the overload on that leg becomes incredible so you need incredible strength to prevent that leg from collapsing though.
For example, in a normal single leg bound there's compression happening and muscular power being put in there. The knee and hip joints of that leg are bent and not straight, which makes the muscle of those joints to load up quite a bit. So...
You dont load a single leg jump in a directly downward line, very far from it. Do a standing single leg jump and standing 2 leg jump. Now do a running single leg jump and a running 2 leg jump. You might have a 20+ inch difference off one, and 5+ off 2. If that doesnt tell you something about the force patterns/directions, then I cant say anything that will help you.