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Well Nightfly is. He naturally jumps off one leg although he got great off two feet in time with his maturization, strength training and lowering bodyfat levels. At ~15 years old he had a what, 24 inch two footed vert and now at 22 he has a 42 inch vert off two feet and probably a ~43 off one leg at his maximum, best day.

For me, I have no idea what my 1-leg jump PR is. It kind of varies. It should be around ~36-38 though. I had a moment in the past where I was sick and stayed in bed 3 days, one after another, then as my sickness gone away I went in the park and could barely walk, I was getting tired very very quickly and felt so weak, and then I tried to jump at the rim (just to goof around) and was jumping I think close to 40 inches, I mean WTF? , and hitting my head in the middle of the net at the 2.96 rim. Right now I can just scrape that net with my head but I don't really have the best jumping technique WITHOUT the ball in my hand at this point in time.

So as you can see, weird stuff usually happens with my one leg jump. It depends a lot on fatigue levels (and as silly that was, I think staying 3 days in bed fully rested my leg muscles although you'd expect to suck hard after such an event) more in the 1-leg jump since there's more overload occuring (there's more speed in the plant than in a two-footed jump) and the overload happens for the muscles of 1 leg so that's another point of excessive overload as well.

And frankly, I think the whole key, besides voluntary strength as expressed in the weight room - is to make your body accept VERY HIGH levels of overload without allowing the leg to collapse under such a high stress. Great eccentric strength levels are needed for a great one leg jump and also, the body position in the plant is very important.

My bodyfat levels have decreased lately, but I think I'm around 13%.

Quote from: Raptor on July 22, 2011, 07:53:40 am

Quote from: steven-miller on July 22, 2011, 07:45:04 am

And if you think your bodyweight is a variable to minimize for a higher VJ, you are fooling yourself big time.

So if I'm 6'0 and 300 lbs with a 50% bodyfat I shouldn't think my bodyweight is a variable to minimize for a higher VJ?

No, you should not minimize it, but you should definitely decrease it. Notice the difference.

Can't comment on the single leg stuff, but I don't think that body fat - in reasonable amounts, like up to 15% - plays a measurable negative role in coordination. At least I cannot see why that would be the case.

Well it could mess up with your proprioceptive ability.

Quote from: Raptor on July 22, 2011, 09:09:05 am

Well it could mess up with your proprioceptive ability.

You have said that already but you did not mention by which mechanisms that would happen.

I don't know. It just makes sense for me. By the same token, why does closing your eyes demand a more proprioceptive signal from you when moving around?

Quote from: Raptor on July 22, 2011, 08:27:21 am

I think there are other people that jump very well off one leg that are heavy: Cannon Brown for example. James White put quite a bit of muscle, especially upperbody, on him and he is jumping the same if not more right now. So I don't know. Vince, back in the day when he weighed ~225 lbs at one point was still jumping great off one leg.

I think bodyfat % is even more important in one-leg jumpers for some reason, that reason probably being putting you out of the optimal position for jumping.

Raptor, who else on this site is a single leg jumper, besides u and me?

Also, what's your 1 legged PR and ur BF%?

I am, and I've jumped higher since adding mass.

Quote from: steven-miller on July 22, 2011, 09:32:06 am

Quote from: Raptor on July 22, 2011, 09:27:27 am

I don't know. It just makes sense for me. By the same token, why does closing your eyes demand a more proprioceptive signal from you when moving around?

Well, for me it does not. When you make a point like that it would be good if you had arguments in favor of it, don't you agree?

Also, I don't understand your question. What is a "more proprioceptive signal"? And what does that have to do with our discussion?

I meant "stronger" proprioceptive signal. When you take away one orientation sense (eyesight) the body needs to boost it's proprioceptive ability to determine the position on your limbs/to maintain equillibrium etc.

Try this: stand on one leg and like in a one-leg deadlift touch the floor. Do the same thing with your eyes closed. Which was harder? Or try to balance on a medball or basketball with your eyes open vs. your eyes closed.

I don't understand how this relates to negative coordination when having excess body fat.  Could you explain?

Well, in my bro opinion, having "dead excess weight" messes the proprioceptive signal around. The CNS is like "I ain't gonna allow this limb to move this fast while being this heavy" as it receives signals from the receptors that sit in that particular limb. At least, this is my view on things, but you can take it as the holy word if you want to. You know I'm just never wrong.

You are retarded!

Raptor, dude, what can I say? Of course you can have this opinion, but you cannot possibly wonder about the reactions...