I don't have a tall Asian doll yet. What I do have is an athletic Asian doll (left-most in the photo above). See those arms? Her body is from another doll line. The guessing game starts now.
If I were designing Barbie dolls for Wonder Woman, Misty Copeland or Abby Wambach, I will make the body look more athletic. Well, that is if I want to promote athleticism and a healthy lifestyle. If I'm just in it for the money, I can just use any thin body. Doll collectors have impressive imagination so let them imagine that those dolls are athletic enough.