Old video from Crossfit Threshold
Squats 8x (20) on (10) off
The Tabata protocol is a
high-intensity training regimen that produces remarkable results. A Tabata workout (also called a Tabata sequence) is an interval training cycle of 20 seconds of maximum intensity exercise, followed by 10 seconds of rest, repeated without pause 8 times for a total of four minutes. In a group context, you can keep score by counting how many lifts/jumps/whatever you do in each of the 20 second rounds. The round with the smallest number is your score.
Credit for this simple and powerful training method belongs to its namesake, Dr. Izumi Tabata and a team of researchers from the National Institute of Fitness and Sports in Tokyo, Japan. Their groundbreaking 1996 study, published in the journal Medicine and Science in Sports & Exercise, provided documented evidence concerning the dramatic physiological benefits of high-intensity intermittent training. After just 6 weeks of testing, Dr. Tabata noted a 28% increase in anaerobic capacity in his subjects, along with a 14% increase in their ability to consume oxygen (V02Max). These results were witnessed in already physically fit athletes. The conclusion was that just four minutes of Tabata interval training could do more to boost aerobic and anaerobic capacity than an hour of endurance exercise.
Although Dr. Tabata used a mechanically braked exercise cycle machine, you can apply this protocol to almost any exercise. For example, a basic Tabata workout can be performed with sit-ups. The more muscles used the better, so use full knees-bent sit-ups. Sit-up non-stop for 20-second intervals, followed by 10 seconds of rest. Repeat for a total of 8 cycles.