25 minute full body tabata workout. Tabata is really just a fancy word for a four-minute interval workout. The Tabata philosophy is based on creating what we call an Oxygen Debt – that means that you have burned off the oxygen you currently have in your muscles and thus your body has to find a way to replace it. Your body then rushes into oxygen production mode for the next 24 hours, burning extra fat in order to accomplish this task. That means you'll be burning extra fat for 24 hours.