USA Cycling relying on high-tech training tools ahead of Rio (The Associated Press)

USA Cycling is pushing the limits of training technology in the run-up to the Rio Olympics, first with a revolutionary track bike that took years of design, then with proprietary hardware and software they can use to better gauge how well their athletes are training in the months leading up to the Summer Games. If Sarah Hammer was wasting energy during a particular segment, they could determine right away why it was happening.