User blog comment:Pacifista15/Explosive Punches/@comment-1595565-20111028003040

Well, taking into account friction and the heat generated from it, add in the extra weight and force from the haki...that alone still wouldn't be enough to come close to explaining it. I think it's more biochemistry than physics. My guess is that the steroids have some volatile properties to them after being absorbed into the blood. They're not water soluble before consumption, but that could change after they get absorbed. That, plus excessive lactic acid buildup might be to blame, though I don't think lactic acid is that volatile, if at all.