LOL, you may be buying soccer shoes for her some day, or skydiving equipment. My Sara was a kicker, always moving her feet. I immediately thought gymnastics...
she rides horses now, and has done some vaulting exercises...spinning 'round in the saddle while the horse is at a trot. Yep, physical agility, it was already showing up at the six month doppler checkup.
LOL, you just can't tell what they'll do, but I believe it IS a good sign your gal is so physically active already.
Enjoy these moments, where she is in one place, as it'll get really hard to keep up with her when she gets running shoes.