We will be adding special combat methods, but not to the extreme you're referencing. Hmmm - I can't seem to remember.
Races can also use magic to enhance their breathing time.
Actually, the jungles are slated to have apes, etc. However a Giant with the same running skill as a dwarf will run much faster - difference is a giant takes more stamina to run. Screen goes black, loss of typing ability. A healer or caster could possibly bring you out. This would really add to the rping factor.