1. METCON Workouts

METCON workouts stand for metabolic conditioning and they are fast and furious just like HIIT. However, METCON workouts often involve weights and last slightly longer with a slightly lower heart rate for sustained circuits.

2. HIIT Workouts

HIIT stands for high-intensity interval training and these workouts are typically done in small circuits that get the heart rate pumping at 90% or greater of your maximum.

3. Versatility

Most people who say they are doing HIIT training are actually doing METCON workouts because METCON workouts enable you to train for a little longer period of time where the heart rate is closer to 70 to 80% of your max rather than all-out like HIIT training is.