Videos of before and after athleticism?

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I'm looking to compile videos on people's athletic ability after LL. I'm looking for videos after LL, more data the better. I have seen 3 videos so far and only 1 of them looked like running was back to normal, al other examples people seem to be using their upper body to compensate for loss of explosive power in the legs. Missing from this analysis are simple things like how much was lengthened. If you can please link me to or provide me with as much before and after as you can. Thanks

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Also if you know the phenomenon I'm referring to then perhaps you could offer some insight into why it happens and if it can be avoided.

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You did 8cm? In the femur? Do you think there is a min length one can go for without severely impacting athleticism?

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What would yu consider young age range? Also would Bone age be relevant here? WHat about HGH usage?

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Also to those reading this, perhaps yu can answer this question for me: Which aspect of LL or even broken bones overall make full (perfect) recoveries so hard? Is it about how much muscles stretch? The initial shock to the system? etc