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Well, I said that in the above paragraph of your quote - probably less absolute force is occuring through the body which makes the CNS accept it much easier, without the fear of things breaking up, and allowing a faster coupling phase etc, and the tendons pretty much maintain their material qualities regardless of weight, so the structural factors that have nothing to do with muscular strength, like Avishek used to say "muscles don't have anything to do with this bullshit" - these structural factors start playing a more important role at a lower bodyweight. Otherwise the CNS is going to make you use less speed in the plant to protect them, speed that has to be compensated for with voluntary power.

Since both athletes have the same voluntary power, then the heavier athlete will jump lower, due to the loss of speed in the plant/loss of accumulated momentum which would otherwise add to the voluntary power that is identical.

It looks like you use a single arm swing coming up your right leg and a "somewhat double arm swing" coming off your left leg... I guess your body is just too much "forward" when you take off, that's the only thing I can see. Like you don't load the posterior chain too much because you stay too forward instead of letting yourself a bit on the back and "hip-popping". Oh well... I think my one leg jump of right now looks much uglier.

How much do you bend in the plant off one leg? In your standing vert you go so deep, yet you're bouncy off a running VJ off two legs. Hard to imagine how a one leg jump would look like.

I wonder if you can dunk using that dodgeball off one leg right now.

See why this thread is so important?!

Hm... yeah I guess the goblet squats can help make the glutes fire better in the high bar squat... something to think about.

Stubborn fat for women isn't abdominal .. it's thighs and hips.. but yeah. women who train will often have a sixpac way before they have lean butt/thighs/hips. src: instagrams

Nobody is objecting to that distribution.

I think we need to go to the extremes here to make a point. Ask it another way:

Athlete A is 300 lbs in BW, squats 600
Athlete B is 150 lbs in BW, squats 300

Both have the same ratio, structure, CNS etc. Who jumps higher? I would say the 150 lbs one, because it takes less effort to change direction at that weight and there are other things like, again, the absolute force that you can transmit through connective tissues that is important too. These things are being monitored by the CNS all the time for safety reasons (mechanoreceptors, proprioceptors etc).

So imagine the 150 lbs guy going for a high speed jump with a let's say 8G plant.

That's 8Gx150 lbs = a 1200 lbs force in the amortization phase that is transmitted through the skeleton.

Athlete B tries the same thing, at the same speed, and gets himself the same 8G plant. His skeleton, connective tissues, tendons etc need to deal with 8Gx300 lbs = a 2400 lbs force in the amortization phase.

So Athlete's B connective tissues need to sustain a tremendous amount of pressure and tension without the CNS raising red flags for safety reasons that they might break, regardless of the fact that they both squat the same 2x and muscularily produce the same amount of force/eccentric force etc.

It's like taking a tractor and trying to make it a race car. Sure, you might design an engine capable of revving and pulling the tractor at a racecar pace, but the joints of the car themselves, the materials themselves, the wheels, the articulations, the suspensions etc would just fail at those extreme tensions and forces being applied at that weight.

And if the tractor has a very good computer that senses all that, the computer will shut down the power to prevent the tractor from breaking down.

In my opinion, that's what's going on with the bodyweight in a human when jumping, that's how it acts.

And it's even trickier than that - we are looking at squatting here. But usually we increase our squat and bodyweight (say we keep the same ratio) but the calves don't get that much stronger. And then the calves, which don't grow as fast/strong, remain behind with the squat going up. That changes the mechanics/overloading of the jump, making the quads do the breaking more, which makes you more quad-bound, which makes you increase the knee bend more, deactivates the hamstrings more, the angles are different and on and on and on.

So it's more complicated than simple numbers here.