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About McGregor FAST

THE FIGHTER AEROBIC / ANAEROBIC SYSTEM OF TRAINING The FAST system combines both high intensity interval type (H.I.I.T.) training and longer aerobic type workout sessions which are done at specific heart rate zones. Training in your personal heart rate zones gives you the maximum work load without letting you over train so you can recover faster for your next workout session. You will get optimal results for your time and effort.