We as strength coaches have a way of screwing training up even with this ancient, written-in-stone principle.

To better understand how exercise intensity dictates fuel use, and what this means in respect to the fat burning zone, we need to review the energy systems your body can rely on during exercise.

The breakdown of food and the conversion of nutrients to energy coincides with the body’s regulation of multiple energy systems.

Cluster or rest-pause training involves using short inter-set rest periods of anywhere from 10–30 seconds to produce more powerful repetitions or more repetitions with a heavy weight.