It should surface when the speed of the glide of the starting dive drops to the speed of swimming.

A well-behaved departure dive will bring few bubbles into the water. The more bubbles are brought into the water, the more resistance or resistance the swimmer has in the water.

A sharp start dive that allows swimmers to glide quickly for 15 meters is the best starting dive.

The most important point is that Ye Yu only has the sound of water when he enters the water, and there is no sound of the spring kicking hard to the starting platform.

The squatting starting technique is better than the grasping table starting technique.

Ye Yu and Feifei's previous research in this area has not reached a clear conclusion, and both believe that the starting diving that swimmers practice the most is the best starting technique.

When teaching starting techniques to novices or swimmers whose skills need to be improved, the squatting start technique is preferred over the legs together start or the "grab the table" start technique.

It wasn't until a later rush that the two of them discovered the advantages of the squatting starting method.

The squatting start is a technical variant of the grab table start. His entry into the water is faster than that of the grasping table, and his legs can fully exert force separately.

It imitates the preparatory posture of track and field squatting start and swimming grab, hence the name squatting style.

The process of action is: the two feet are opened back and forth, the front legs are slightly bent, the front toes buckle the front edge of the starting platform, the back legs are slightly bent at the knees, the back heels are lifted, the upper body is bent forward, the arms are straight and shoulder-width apart, and the two hands grasp the two sides or front edges of the starting platform, when you hear the command of "each in place", lift the hips, slightly higher than the shoulders, move the center of gravity forward, and most of the weight of the body's squatting style falls on the front feet and arms.

When you hear the starting signal, kick out with both feet, and at the same time bend your elbows with your arms to pull the platform to move your body forward and downward, and then push away from the starting platform with force, then stretch your body, raise your head slightly, and quickly swing forward with your arms and jump forward. At the same time, the back leg is brought together with the front leg to complete the aerial action.

In comparison, this method is really much faster.

"Hey, hey, hurry up! The unicorn is about to catch up! The second old man coaxed on the shore, and with such a shout, the people in the pool quickly accelerated.

He started 10 meters ahead but was almost overtaken, and now he is only a few meters away.

"Wow, Senior Ye is really fast! And it's so handsome! It's like being his girlfriend! Several girls from the diving team began to be on the side, and the sound was not loud or small into the ears of Tingting and the second old man.

Tingting proudly looked at the people in the pool who had caught up with the rest of the way, it was quite fast and handsome.

But this is already his person.

"I said you guys don't even think about it. People's famous grass has flowers! It's your Tingting senior. "The second old man hehehehe

"Huh?" A few girls were disappointed.

"You can think about Captain White Tiger, he has no object!" Tingting said casually, as if no one likes the white tiger at the moment.

“…… Uh, forget it then! "Who doesn't know that Captain White Tiger likes Chu Xia's predecessors, and he is still a national treasure of the fencing team, and he can't afford to mess with him.

The first 100 meters are breaststroke, which is not difficult for Ye Yu, even if he lets 10 meters, it does not affect his performance, and it also promotes his explosiveness and motivation.

I was going to turn around with my own method, but the second old man on the shore shouted angrily, "Use the standard, I want to use it to teach others!" It's too hard for your own! I can't teach! ”

The corners of Ye Yu's mouth twitched, and his forehead ......

But the most ordinary horizontal rotation type was still used, and it was the turn of the second old man's mouth to draw menstruation.

Hehehe! It's okay, teach or you teach, I'll just take a look, you turn around at will.

There are many ways to turn in swimming, and different postures have different turning methods and requirements. If it is divided according to the action image, it can be summarized into three categories: horizontal rotation type, swing type and rolling type.

Horizontal rotation, including backstroke, crawling, and breaststroke. In this type of turn, the body rotates around the anterior-posterior axis. The movements are relatively simple and easy to learn, but the turning speed is slower.

"Second grandfather, you let him demonstrate this kind of what if he has muscle memory, what if he uses it wrong in the game at that time?" Fei shouted worriedly.

"Later, you two will take care of it yourself, and we will teach this group of melon babies first." The second old man said that it didn't matter, how could it be so simple to have muscle memory.

Oh oh, well, the old man is unreliable, and he can't practice by himself.

When he returned, it was the butterfly, which was his forte.

The butterfly stroke is one of the most difficult strokes in swimming. It is sometimes referred to simply as "the fly", although it is the second fastest stroke when properly to be a skilled athlete, it requires a very accurate technique, strength and rhythm. It takes a lot of practice to perfect, but when done right, it's one of the most valuable, respected, and aesthetically pleasing swimming styles currently used in competitions, and being able to swim a good butterfly is the hallmark of a truly competitive swimmer.

"Whoa, I'm going to win." Fei squatted on the jumping platform and looked at Ye Yu's figure rushing back.

"Hurry up!" The girls next door are in a hurry, they can't compare to Fei! You're going to clean it up soon!

When Ye Yu's touch on the wall didn't react, Fei Fei had already gone into the water with a song. At this moment, everyone's fighting passion was instantly more than half.

"If you don't work hard, the last three groups will have to do hygiene!" Tingting shouted when she saw the excitement.

Now everyone is excited, they can't compare to Fei, but the gap between them still has to be done. Otherwise, we're going to have to clean it up tonight!

Even though Fei was already ahead of more than ten meters, they still kept chasing Fei with the goal of Fei. The strength of the girls in Qidao is comparable, and they are also in a hurry to catch up.

They can't compare to Feifei in freestyle, because someone has already touched the wall, and they are still more than ten meters away from the visual inspection!

The return stroke is the backstroke, which uses a rolling and turning body, which rotates around the horizontal axis, vertical axis, or back and forth, while flipping and turning, and the turning speed is faster. In particular, before crawling and swimming, roll and turn, and the hand does not touch the pool wall, so the turning speed is the fastest, but the action is more complex and difficult to learn.

He Fei may be a big ghost, but for others, it may be a small god.

In Hongdao's swimming team, there are turning levels: Little Ghost, Big Ghost, Little God, Big God, Vermilion Bird Kirin.

The backstroke technique makes it easier to breathe because the head is exposed to the water; Lying on the water is more labor-saving. The technical part of backstroke is divided into four points: first, backstroke body posture; 2. Backstroke leg technique; 3. Backstroke arm technique; Fourth, backstroke coordination technique

The backstroke, while it may seem simple, is actually more difficult than the butterfly.

(End of chapter)