Tabata Protocol (20/10 x 8)

Tabata Protocol delivers the most time-efficient HIIT format ever validated, taking just 4 minutes for 8 rounds of 20-second all-out effort followed by 10-second rest. The landmark 1996 study showed a 28% improvement in both aerobic and anaerobic capacity, outperforming #3 Norwegian 4x4 Protocol in total workout duration while achieving comparable metabolic gains. Developed by Dr. Izumi Tabata at the National Institute of Fitness and Sports in Tokyo, this protocol remains 50% shorter than the average HIIT session for similar physiological stimulus.