[Have a random access of the second-level in a gym somewhere. Yuffie is currently upside-down on a balance-beam, one leg bent so that his foot is touching the inside of the other knee. He makes a quiet sound as he transfers all his weight to his right arm and holds his left out to the side. His right arm trembles, as if it's still weak, but holds his weight.]
[He puts his left hand back on the balance beam, tests his weight. Stays. Aaaaaand dismount with a somersault (no, don't ask why). He sticks the landing and flings his arms up, pumping his fists in the air.]
Whoo!
[Apparently, he wasn't sure the arm would support his weight enough to perform most of his gymnastic stunts. Or maybe he wasn't sure he could divide his concentration between the levels while maintaining his balance. With Yuffie, could be either, could be both, could be something completely different.]