All the acrobats I know are pretty good jumpers. Better than most of the body builders I know.
That's because they have trained to build up strength - most gymnasts I've seen have some serious muscles. In the real world you can't really train acrobatics without also training your strength, but in D&D those two attributes are decoupled. D&D does have an optional rule where you use a different attribute for skills: Strength (Acrobatics) would probably be the most apt for many of acrobats' & gymnasts' activities.