The arm flexion and extension of parallel bars mainly exercises the pectoral muscle, triceps brachii and deltoid muscle (toe).

Personally, I think the development of your triceps is the most important, whether you can cross the 20 mark or not.

I remember when I was in high school, I was so thin that I couldn't do either with my arms bent and my arms stretched out.

Later, I did push-ups every night, because there was no concept of fitness at that time, and I didn't know where to do push-ups, just to practice my body well. At first, I did up to 20 push-ups at a time. Later, through hard work, I could do 100 push-ups at one time. At that time, I had to do 100 push-ups before going to bed every night.

When I can do 100 standard push-ups at a time, I will do parallel bars arm flexion and extension, and I can easily complete 20, hehe, but at that time, I felt that compared with the standard bodybuilding exercise I am doing now in the gym, it should be quite nonstandard and much easier than the parallel bars arm flexion and extension I am doing now in the gym.

Hehe, but the landlord should also take the senior high school entrance examination. That action should not be very standard, so the difficulty should not be high.

Originally, the landlord would not bend and stretch the parallel bars. If you practice the flexion and extension of parallel bars, I don't think the effect is good. Might as well practice push-ups.

Push-ups are also exercises for chest muscles, triceps brachii and deltoid muscles.

However, this should be easier than bending and stretching the parallel bars. Moreover, push-ups can be adhered to by will when the floor can't take the initiative, but the parallel bars can't bend and stretch.

Therefore, by doing push-ups to exercise the triceps brachii, the landlord can also rely on the will when he can't, so at this time, the will plays a key role. I suggest that the landlord practice push-ups once a day from now on and make progress every day. For example, the landlord will do 30 at a time today, so the landlord will do 4 groups and strive for 30 in each group. Then, the next day, try to do 35 at a time and do 4 groups. Anyway, the strength will gradually increase.

Only 1 month, I can't guarantee that the landlord can finish it easily for 20 times in the end, but it should not be a problem for the landlord to finish 15 times. Five more times. What should I do?

Hehe, don't worry, there are skills.

The landlord has a lazy way to bend and stretch the parallel bars during the exam, that is, roll up his legs. At this time, his thighs should be perpendicular to the ground, and his calves should be bent upward and backward, that is, his calves should be lifted off the ground as much as possible, which is more labor-saving and easier to do. Don't always do it in a vertical line, it will be very unfavorable.

One more thing, when the landlord does it, try to move as fast as possible, that is, people should put it down and then support it. This process should be fast. Don't put it down slowly and then rise slowly, which is the most laborious. Moreover, if the landlord can be lazy, he will be lazy, that is to say, you should not be a sucker. When you put it down, don't put it down too deeply, as long as the teacher doesn't talk about you, which is more labor-saving.

Of course, the lazy skill I mentioned is only for the landlord to cope with the exam, which is not good for exercising muscles. If you want to exercise strong muscles, you should do it step by step.

Hehe, I wonder if you are satisfied with my answer?