Now "until you spit" seems to be the goal that trainers are proud of, but does this really mean that your training is in place? Vomiting in high-intensity fitness training is usually due to the blood flowing from the stomach to the muscles, because the body will guide the blood to the place where it is most needed, and the muscles need extra oxygen during high-intensity exercise, and at the same time, they need to discharge the waste generated during exercise through the blood.

Therefore, the human body will deliver more blood to the muscles, thus delivering oxygen and discharging waste, which means that the blood flowing in the stomach is relatively reduced. At this time, the problem appeared. If you are still digesting things before meals, with the decrease of blood in your stomach, nausea and even vomiting will occur.

So what kind of fitness training or exercise is most likely to cause nausea and vomiting? Theoretically, any exercise that needs to deliver a large amount of blood to muscles will lead to vomiting imagination. More specifically, those sports that need to eliminate a lot of waste produced by muscle operation.

400-800 meters sprint, CrossFit and some fitness training modes will produce a lot of lactic acid, so these exercises may make the trainers vomit. In other words, training to spit means that the trainer can endure the pain of high-intensity training, and we have to admit that you are a tough guy. But can "practice until you vomit" really become a training goal? After all, there are many ways to prove that you are a tough guy.

Conclusion: "Vomiting index" can reflect the high intensity of training and the unreasonable diet arrangement before training. You can adjust the training intensity by increasing the interval between groups, controlling breathing (holding your breath less) and reducing the training load, so as not to let vomiting weaken your training effect.