Sarah Reinertsen swaps feet the way others change running shoes.
If she’s hitting the track, she puts on one kind of prosthetic. If she’s going for a long run, she chooses something else. Each is attached to a C-shaped running “blade” designed to mimic the shape of a cheetah’s hind leg.
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Sarah Reinertsen will speak about “The Bionic Athlete and the Future of Sports” at 3:30 p.m. today at the Hyatt Regency, 208 Barton Springs Road. At 5 p.m. she’ll sign copies of her book in the Ballroom D foyer of the Austin Convention Center. SXSW Interactive badges are required.