Bosu Kevin Kearns 'Fighter Fit' Fitness DVD Increase endurance, target core muscles, shape lean muscle and become functionally strong Featuring the BOSU Balance Trainer and veteran pro MMA fighter Marcus Davis Beginner and intermediate workouts Demonstration of each exercise, a fighter prep warm up, workout and yoga inspired cool down Led byKevin Kearns, BS, FMS, MMA Conditioning Specialist mad featuring Marcus Davis, Veteran Pro MMA Fighter