It is obvious that pull-ups are difficult to do, and some problems can be seen from the horrible achievements of college students. Even so, we can't deny the existence of pull-ups Attention, here? Pull-ups Doesn't mean you can do 20 at a time and get it? Excellent? There are achievements, but real masters. You can be 30, 40, 50 ... or even more people. However, can anyone really do 100 standard pull-ups in one breath?

Standard pull-ups

First of all, it should be emphasized that you are not allowed to change hands to rest on the way to pull-ups, and you need to hold the horizontal bar with both hands all the time (there are more than 200 records of changing hands to rest). For the standard pull-ups, some netizens may say that any friend can do it, but why is it always someone else and not yourself? So put forward three reasons to minimize fitness: Can anyone really do 100 pull-ups at one breath?

The first reason is the limitation of the three major energy supply systems of the human body. In the case of strenuous exercise, the phosphate system can last for about 30 seconds. Moderate intensity, glycolysis system can only last for 3 minutes. Pull-ups belong to anaerobic exercise, and fat oxidation energy supply is unlikely to be dominant (which of the three energy supply systems is dominant depends on the intensity of exercise). For example, the 1 minute pull-ups of the Guinness World Records challenger usually return to the ground to rest after the 40th second. Then one, two went on to finish the rest, and the arm obviously showed fatigue (the record was 53). 3 minutes to complete 100 pull-ups? This is obviously not in line with the actual situation.

The second reason is that the intensity of pull-ups can determine how long and how many times an exercise can last. So, how to measure the strength of pull-ups? For example, an 80kg band-aid once completed the world record of 100.4kg pull-ups (backhand grip). For arms, the strength limit is 2.3 times the weight. When unloading the load and doing pull-ups, it is equivalent to the band-aid doing strength training with 44% of his body weight. According to Boyd Epley formula, the maximum weight = using weight x (1+0.0333x RM of using weight), it can be calculated that the band-aid can do about 37 pull-ups. It is worth noting that if the band-aid extends the interval of pull-ups every time to get some rest, he may be able to do more (extending the pause time is equivalent to reducing the intensity of exercise).

Third, pull-ups also follow Konikin's law. Pull-ups are a multi-joint compound action. If you are exhausted first, you can't continue to do pull-ups even if your latissimus dorsi is strong. For example, many people think they can do more pull-ups, but they have no strength to hold the horizontal bar with their hands and can only interrupt. Many people find it difficult to improve the number of pull-ups, which is a big reason. For pull-ups, grip strength (mainly endurance) is also a headache for them. If the grip strength is strong enough, it may really happen that holding the horizontal bar can restore physical strength.

pull-up

On the whole, a healthy person can't do 100 standard pull-ups in three minutes. However, considering the infinite potential of human beings, if we can reach the level of reason 2 and reason 3 (extending the interval and enhancing the grip endurance), some people can still do 100 standard pull-ups in one breath.