CAROL

CAROL is described as safer and more reliable than many alternatives because it rapidly adjusts resistance, individualizes load, collects data, and is low impact. CAROL Bike 2.0 is described as expanding flexibility and personalization without changing the effectiveness of the signature workout. CAROL's Octane Score represents power per heartbeat as a marker of cardiorespiratory efficiency. CAROL uses calibration rides to infer rider capabilities because basic body metrics do not reveal body composition. CAROL uses personalized resistance rather than manually fixed resistance. CAROL adjusts resistance over time to match changes in the rider's fitness or struggle level. The bike is said to use connected workout data to refine its algorithms over time. The bike format is presented as safer for high-intensity efforts because the user is seated and the load is controlled. CAROL is built around a roughly 9-minute session with only 40 seconds of hard exercise. The CAROL Bike is presented as a connected and automated platform for delivering REHIT. CAROL is planned to evolve into a broader AI health coach using physiological signs and user questions.