the rubber is precisely what blocks the flow of electrons to-and-from ground. another way to discharge or recharge is by petting an animal that has been running around barepawed.

i think that the bigger the animal, the more charge u can exchange with it. maybe that's why people like to ride horses and elephants. 

zapsammy

HealthAndFitness

Barefoot Much?

Undisciplined

I'd say it's not very practical, but my lifting shoes are very wide and have a very hard bottom. I'm pretty grounded. This summer when it gets warm, i may even start lifting barefoot because I have hard rubber mats. 