HIIT involves alternating brief bouts of cardio ( 30 sec - 3 min) of high intensity with a rest or a recovery period. Anything can be used from a treadmill, bodyweight, bike to a rowing machine. Now this is not just for the super fit. Anyone can do this if you follow these 3 guidelines.
7 benefits of regular physical activity You know exercise is good for you, but do you know how good? How exercise can improve your life. No. 1: Exercise controls weight
