I have to say this is by far one of my favourite workouts! I always find it a challenge to do the extended 90 seconds of cardio! If you haven’t done this format yet we do 90 seconds of cardio followed by 30 seconds of muscle, then 60 seconds of cardio, 30 seconds of muscle, and lastly 30 seconds of cardio and 30 seconds muscle. We take 6 groups of 1 cardio and 1 muscle exercise and when we finish that we add on 3-5 minutes of core followed by a stretch!