Abstract: The high-intensity interval training often consisted of groups of interval high-intensity exercise of exhaustion or above 90% maximal oxygen consumption, which can be applied to improve aerobic capacity. Adaption of skeletal muscles might be resulted from high-intensity interval training, including recruitment, glucose metabolism and activity of mitochondrial oxidase, etc., and improve maximum oxygen uptake. It has been used for physical fitness, such as weight reduction, rehabilitation of heart diseases and diabetes mellitus, etc.

Key words: high-intensity interval training, skeletal muscles, aerobic capacity, weight reduction, rehabilitation, review