High-intensity interval training is a training protocol alternating short periods of intense or explosive anaerobic exercise with brief recovery periods until the point of exhaustion. HIIT involves ex
HIIT with dumbbells
Pace and Heart rate graphs during HIIT exercise
Aerobic exercise
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Aerobic exercise, also known as cardio, is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. "Aerobic" is defined as "relating to, involving,
High-intensity interval training
…with periods of rest or low activity between bouts. The very high level of intensity, the interval duration, and number of bouts distinguish it from aerobic (cardiovascular) activity, because the body significantly recruits anaerobic energy systems (although not completely to the exclusion of aerobic…
Cycling is an aerobic form of exercise.
Athletes training for the 1896 Olympic marathon
A step aerobics exercise instructor motivates her class to keep up the pace.