Trifecta Fitness: HIIT-Cardio-Strength With Manuel Velazquez The fusion of the 3 planes of movement: sagittal, frontal, and transverse in one functional interval workout! To access this content, you must purchase Trifecta Fitness: HIIT-Cardio-Strength, OnDemand Monthly Subscription Payment Plan, OnDemand Annual Subscription, OnDemand Monthly Subscription, OnDemand 6-Month Subscription or OnDemand 2 Year Subscription or log in if you are a member.