Board Thread:Theories and Speculation/@comment-43776375-20190921063938/@comment-43403813-20191017210529

Dude, I get your point, I just disagree, no need to patronise.

Saying his muscles haven't been stimulated is moot if he has had chakra to heal his muscles completely. It was his the damage to his skeletal structure that hindered his mobility even after he absorbed Bee's chakra.

In order to know how to walk and run, Nagato needs two things:

1. The procedural memory of how to perform a walk, or a run, or anything movement based. Check. We know he can do this because he has shown this through his six paths of Pain. It doesn't matter if it's not his real body, he is in their minds controlling them, as if they were his own bodies.

2. Healthy vitality in legs. Check. Bee's chakra nourished Nagato's legs which boosted his mobility speed. However, it wasn't perfect, since he was not completely healed of all of his ailments.

You are factoring real-life methods of movement rehabilitation in a world that has rejuvenating chakra/techniques and the ability to control corpses as if they were your own body. Your whole argument surrounding Nagato's nerves and muscles has no leg to stand on from the manga.