HIIT HIIT Classesat The Fitness Bank, South Wigston Our current class timetable includes the following HIIT classes: H.I.I.T : Mon, 18:15 (30 Min) H.I.I.T : Wed, 17:00 (30 Min) H.I.I.T : Thu, 09:30 (30 Min) To book your place, just get in touch! Full Class Timetable >> About HIIT HIIT - Our quick guide to what it is, how it works, and what to expect during a class! High-Intensity Interval Training is a form of cardio exercise that alternates short periods of intense anaerobic exercise with less intense recovery periods. Intense cardio workout!