So when iFit trainer Tommy Rivers Puzey, an ultrarunner and coach, is steadily jogging up a hill at the base of Patagonia’s Cerro Torre, for example, the NordicTrack X32i automatically adjusts ...

There are currently more than 30 different iFit trainers and coaches available on the Vault, though the company employs dozens of others for their other elliptical, running, rowing, and cycling ...