If it's the same as Dutch (I'm pretty sure it is) then no. Laufen means 'to walk' except in some contexts (for example sports). Running in general is 'rennen'. Gehen simply means 'to go'.
I suppose that if we want to say "How often do you walk?" we say; Wie oft du läufst du? Where does "Ihr" come from? Please correct me!
If you mean "you" in singular, than the sentence would be "Wie oft läufst du?"
But in this case the "you all" indicates, that the plural form is meant. Therefore the translation is "Wie oft lauft ihr?"
you (singular) = du
you (plural) = ihr
you walk (as a single person) = du läufst
you all walk = ihr lauft
I think the "all" is superfluous. In English you seldom say "you all" or "you guys" you simply say "you".
I agree. You say 'you all' in the southern part of the US, not in the East, West or Midwest