Most people want their workouts to be two things: fast and effective. That's where high-intensity interval training techniques, like Tabata, come in handy.

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The famed training protocol alternates 20-second intervals of maximal effort with 10-second rest periods. Repeat that cycle eight times for an exhaustive four-minute workout.

How It Works

Developed by Dr. Izumi Tabata for Olympic speed skaters, Tabata is a form of high-intensity interval training (HIIT) that’s been adopted by boot camp devotees, CrossFitters, and plenty of fitness fans who just want to spend less time in the gym. Effects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and VO2max. Tabata I, Nishimura K, Kouzaki M. Medicine and science in sports and exercise, 1997, Feb.;28(10):0195-9131. The 20-10 pattern has been shown to tax both aerobic and anaerobic pathways more than intense exercise with longer rest periods, meaning improved overall cardiovascular fitness. Metabolic profile of high intensity intermittent exercises. Tabata I, Irisawa K, Kouzaki M. Medicine and science in sports and exercise, 1997, May.;29(3):0195-9131. By taking rest periods only half the length of the intense bursts (a 2:1 work-to-rest ratio), the body is forced to perform without a full recovery. Translation: At some point between rounds six and eight, you'll hit a point of maximum oxygen intake and be really (really) out of breath.

While the 20-10 protocol is most readily applied to traditional cardio (i.e. sprint for 20 seconds, rest for 10 seconds), the regimen is also suited to all manner of resistance training, bodyweight exercises, and even explosive movements. Whether performing squats, a dumbbell press, or even rowing, the trick is to find a resistance and speed that can be handled for multiple reps across multiple cycles.

Your Action Plan

Is Tabata an Effective Workout?

Like many forms of HIIT, Tabata is an effective way to improve both metabolic pathways, initiate the afterburn effect, and can even stimulate growth of the mitochondria that powers muscles. An acute bout of high-intensity interval training increases the nuclear abundance of PGC-1α and activates mitochondrial biogenesis in human skeletal muscle. Little JP, Safdar A, Bishop D. American journal of physiology. Regulatory, integrative and comparative physiology, 2011, Mar.;300(6):1522-1490. It can mix up an otherwise dull running routine and even suits road warriors looking for a quick and effective hotel workout. But Tabata isn’t for the faint of heart (literally or figuratively). The routine was developed to fully exhaust Olympic athletes, so it's probably not the best routine to try if you're a total newbie. It requires a pain threshold for maximum level effort for multiple cyclesanyone with preexisting cardiovascular conditions should consult with a doctor first.

If you are new to fitness, instead of the full Tabata, begin with just four or five rounds and gradually build up endurance from there. Even the super-fit should avoid doing HIIT daily—your body needs time to recover.

Originally published June 2011. Updated January 2016.

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