What does the double reverse in tennis mean?

Single-reflex and double-reflex analysis

First, the double backhand relies on the coordinated exertion of both hands, and neither hand can exert too much force, otherwise it will lead to inaccurate hitting and scattered strength.

Second, the main problem in learning SLR is the lack of strength to control the forearm muscles of SLR. Because this muscle is rarely used in ordinary people's lives, the original exercise is not enough, which leads to the inability to control the racket and ball at first. The solution is to expand and extend the line of your racket and racquet as soon as possible, and make up for the shortage of forearm with shoulder strength.

Third, SLR and double reaction are contradictory, and it is generally impossible to master them at the same time. Because the arm strength of the SLR is too big, it is inevitable to lose the balance of the arm when it is double-reversed.

The technical points of SLR are as follows:

1, grip: SLR beginners mostly choose grip close to the mainland, which is easier to master and seems to be much easier to hit the ball, but in fact this grip has many shortcomings. For example, it is not easy to control the ball, it is not easy to exert strength, and it is easy to tennis elbow. In fact, the best grip of SLR is the eastern or semi-western grip of backhand. Please refer to Colten's SLR grip.

2. Push the racket: The backswing action of SLR should be to pull the racket without clapping, not to hold the racket alone. In the process of pulling back, you can completely relax your hands, just keep your wrists fixed, and your elbows must be slightly bent and not completely straight. Your shoulder will turn to the net completely with the racket. Note that the SLR's racket action should take a completely closed posture.

3. Hit the ball: When you start to swing forward, you should release the racket without clapping and keep it in the original position, but swing forward with clapping. In the process of moving forward, the wrist must be fixed, and the racket must be pulled forward from low to high by relying on the muscles of the shoulders and forearms. At the hitting point, the racket must be in front of the body (one of the biggest differences from the backhand).

4. Follow the swing: don't relax your arm muscles immediately after touching the ball, but still maintain your strength and feel that you are pushing the ball forward and upward (note: it is the feeling of pushing the ball forward and upward, not the feeling of pulling the ball). Keep your body sideways as long as possible until the racket pulls your body to turn. The ending action is that the racket stands upright to the sky and the arm swings straight to the shoulder.

Advantages of SLR:

1, the movement is relatively stretched;

2. The strength of shoulders, waist and legs can be used more;

3. The protected area is large;

4. Conducive to the implementation of blocking and intercepting technology;

5. You can cut it.

Disadvantages of SLR:

1, the absolute power of hitting the ball is not as good as that of double opposition;

2, it is not easy to get started and master;

3. The grip must be changed after forehand hitting;

4. It is not easy to play golf;

The difference between SLR and double reflex:

Because the backhand is a two-handed grip, the absolute strength is greater than that of the SLR. Therefore, when the opponent returns the ball quickly and heavily, he can also use his own strength to hit the ball back to a tricky angle with small movements of his wrist. In this sense, SLR is very difficult to do. After mastering the SLR, it is relatively fixed because of one-handed control, unlike the double-reverse sometimes interfering with each other. This is also one of the contradictions between SLR and double reaction.

In addition, please note that SLR has a small skill, that is, try to use the opponent's strength to return the ball, and don't be too active when the action is not well mastered, which can reduce mistakes.

Wire control of SLR:

It is really difficult for beginners to control the hitting line with SLR. The main reason is lack of strength and practice. To put it simply, the method of controlling the line is as follows:

Hit the ball straight:

1, hit the ball a little later, don't hit the ball too early;

2. Don't turn the shoulder of the hitting arm too early, and try to extend the time of closing the body;

3. Don't turn to the side prematurely, but swing forward and upward;

4. Adopt closed footwork station;

5. The elbow joint of the hitting arm must remain bent;

Slash ball:

1, the hitting point must be early and in front of the body;

2. Use the power of body rotation to try to turn away the body angle at the moment of hitting the ball;

3. The movement direction of the shoulder is obliquely forward and upward.

The above essentials are all aimed at wire control.

The problem of SLR hitting high penalty;

First, the reason why SLR lob is difficult (above the chest):

1. From the perspective of sports anatomy, in this posture, the muscles of the arms and shoulders are almost completely extended;

2. From the point of view of sports mechanics, because muscles stretch to a certain limit, they can no longer exert their strength and bear weak strength;

3. From a technical point of view, there is almost no room for pulling or pushing in this position, and the technical action loses its integrity;

In short, due to the limitation of strength and technology, it is difficult for SLR to return the topspin with great speed and strength. This in itself is one of the most important issues for all SLR tennis players in tennis. Unlike before, this problem only exists in amateurs, but it is also a headache for professional players. In the competition, there are often double backhand players who use powerful topspin to suppress the backhand of SLR players, such as Agassi against Sampras. Among the top SLR players I know, only Sampras and Becker are really capable of attacking in the chest, but their arm strength is also beyond imagination.

1, accept the fact that you can only cut in at a high point. Try to practice chopping golf. As long as you master chopping skills, such as Graf and Federer, you can return the ball at the bottom line without losing money. The technical point of high-position chopping is that the contact angle with the racket face is perpendicular to the ground as far as possible, and then the racket face is opened in the process of forward transmission;

Step back and put down the landing point. Try to make your legs more diligent, retreat to enough space, and let yourself hit the ball with a comfortable waist posture again. Many clay sculpture masters of SLR, such as Corrtega and Colten, have done this. The technical point is that after taking the initiative to retreat, the technology is the same as that of ordinary SLR, but the center of gravity must move forward;

3. Try to hit the jumping point. However, when hitting the take-off point, don't use blind force. It is important to use the strength of the other side to take off and fight back from the other side's angle. Similarly, the SLR masters such as Federer, Cortega and kolton will do the same. The technical point is that the racquet should be short and the wrist should be straight to enhance the feeling of pushing forward.