Derek Hough and Amy Purdy chat with Access' Shaun Robinson after performing on the Season 18 premiere of "Dancing with the Stars."
The U.S. Paralympic snowboarder says she's pushing the boundaries of technology and creativity by experimenting with different kinds of artificial feet to enhance her dancing abilities ... including a pair with hydraulic ankles. But she's also testing out the hydraulic gams that allow her ankles to move in different directions -- rather than being stuck at a 90 degree angle -- which means she can extend her foot off the ground or land gracefully on the tips of her toes if she's doing a contemporary dance routine.
Dancing their hearts out with a a group of backup performers, the brother-sister pair just recently announced that they are going on a national tour, entitled, "Move Live." And Julianne added, "It's basically what we've worked our entire lives to do! We're going to go out and dance, we're going to sing; basically all of our dreams that we've ever wanted to do!"