Tabata was founded by Japanese scientist Dr. Izumi Tabata and a team of researchers from the National Institute of Fitness and Sports in Tokyo during the 1990's, according to Active.com. The effectiveness of the technique was shown in an experiment between two groups of athletes. One worked out five days per week for an hour while the other worked out four days per week for four minutes and 20 seconds. Each for six weeks. The first group increased cardiovascular levels, but didn't advance their muscles. The second group increased cardiovascular levels and muscles mass by 28 percent. "
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