Devised by a leading Sports Scientist (our very own Dr Col), structured by a leading Strength and Conditioning Coach, who currently works with the England Rugby Union Team (our very own Neil Parsley), this is the most meaningfully fatiguing exercise circuit on the face of the planet. F3 – three types of fatigue, all targeted specifically, using each of your body’s multiple fuel systems, recruiting every muscle in your body; all in one session. F3 is unique – F3 is challenging – F3 delivers the kind of results other fitness programmes and circuits can only dream of.