With the new schedule of group classes, a new Les Mills SPRINT class is coming to the Form Factory. Les Mills SPRINT™ is a 30-minute High Intensity Interval Training (HIIT) workout that uses an indoor bike for fast results. The short, intense style of training significantly pushes the physical limit, supports the development of dynamics and efficient calories burning. New lessons start on January 16, 2023 in the Vinohradská, Karlín and Eden clubs.