Jennifer DiDonato shows us how to do a tabata training method exercise in this tutorial. The tabata method includes: doing an exercise for 20 seconds non-stop, then resting for 10 seconds, then repeat 7 more times, and this will result in 8 total exercises. Make sure you log your progress onto a chart. The first exercise you can do with this method is the alternating jack-knife crunch. First, lay down while keeping one leg straight and bring your upper body up while switching legs into the air as you come up. Each leg counts as half, making a full crunch two separate leg exercises. Make sure you have this timed and make sure you rest when you need to.