HIIT not only contributes a lot to reducing fat and losing weight, but also improves heart and lung capacity, thus improving sports performance. The principle of this training method is: 10~60 seconds to try your best, 10~60 seconds to recover your physical strength by low-intensity exercise, 10~60 seconds to try your best, 10~60 seconds to recover your physical strength, and circulate for multiple groups.
For example, when running, sprint for 20 seconds first, then jog for 20 seconds at a very slow speed, and then sprint for 20 seconds. This training method can be called HIIT.
Usually, 20 minutes of HIIT will burn fat better than jogging on the treadmill for an hour, so HIIT is called "the most efficient fat burning exercise". Moreover, experimental facts prove that HIIT does have the effect of burning fat efficiently in a short time-this effect is closely related to an effect called "fat afterburning". So the fat afterburner effect really exists.
The after-burning effect of fat, as its name implies, is that fat continues to burn after exercise. When I went back to my room to rest after finishing HIIT, my body was overworked and lacked energy for a while in the previous exercise, so my body was still decomposing fat at a high speed to supply energy to supplement the energy gap consumed by the previous exercise.