Someone said it right, and brought up new issues.
So if Kadour gets "stronger" due to flexibility, it does not mean he gets stronger inthe same way as through weight training. THe mechanisms are different, and may have different results as well. So it's not a paradox when I say strength in the weight room doesn't always matter for vertical jump, but flexibility may help Kadour Ziani get hops (perhaps maybe due to strength), because they are totally different.
So in conclusion, for the third time, kadour ziani's muscles aren't what contributes majorly to his vertical jump as it would for someone who strength-trained. His limb leverages have nothing to do with it (has anyone defined what limb leverages are optimal for high jumping...?). He has trained hard, through means which none of you fucking dumb pieces of shit udnerstand, and has seen results. He does not jump high off of two feet. He only jumps high off of 1 foot, only with a fast run-up, like a high jumper.
Also for everyone else who likes to prove themselves right and ride on false egos, strength training has been shown over and over again ti increase vertical jump. When I said the opposite, what I am bringing up is that strength training does not have to automatically increase vertical jump, of course it can help with two footed jumping but one footed jumping is another issue entirely. Furthermore, when we're talking about kadour ziani, vertical jump means jumping like a high jumper. Deep squatting and deadlifting are not popular techniques among high jumpers. They are good for those who train vertical jump as a two footed vertical jump. Most high jumpers also have shitty SVJs.
And steven, just like everyone else on the forum who critically thinks with their amygdala and sensitive emotions, you are proving yourself to no where land. Here are problems with everything you wrote.
1. I agree that fleixbility training as not been shown to be an effective procedure for increaseing vertical jump. THere are about 2 studies in the literature that I'm aware of on this topic. What I said is that there may be mechanisms that you are not aware of that have helped Kadour jump really high with flexibility training.
2. No it does not matter that those studies were done on untrained individuals. the leg pres issue also does not matter. What matters is that a mechanism exists, and perhaps it helps Kadour jump higher. that's my whole point...I didn't say it DEFINITELY DOES HELP kadour ziani jump higher, but I do not think it's wise to dismiss his flexibility training (4 hours a day when he used to do it if he still does), as having no effect on his hops.
3. I did not ever recommend any vertical jump increasing method in any of my posts, so I don't know why you wrote:
"Just because there are characteristics that correlate with VJ besides force production DOES NOT TELL US that trying to improve those characteristics is an effective or efficient approach to train for VJ. "
That is irrelevant. Furthermore, it's wrong. I didn't say it has nothing to do with force production. Of course it has to do with force production, but more importantly, we need to know the means of force production. People who can jump high without weight training, but just plyos (possibly stretching for Kadour), are not just achieving high rates of force production with their muscles. They have tendons that assist them, period.
I did not want to talk about standing verticals, or two footed trianing, but single leg which we all know is quite different.