How to slice serve in tennis videos gratis,home remedies for ear wax removal with hydrogen peroxide kill,tinnitus close to cure,how to reduce the sound of tinnitus desaparece - PDF Review

If you can be unpredictable with your serve, and place it with accuracy, you will notice a major difference in your overall game. The forearm-racket angle will vary a lot as seen from different camera views (see comment & demo at end).
The forearm-racket angle can be viewed as having two separate components, as seen in a side view and a behind view. This component of the forearm-racket angle, resulting in a near vertical racket at impact as seen from the side, is necessary to keep the serve in. Keep in mind that these angles change very rapidly after the arm extends - angular rotation rate is on the order of 1° per millisecond as a first estimate. This component of the forearm-racket angle is necessary to develop racket head speed when the arm is axially rotated by ISR.
Examples of view looking along the ball's trajectory from behind to show this 2nd component of the forearm-racket angle. I have been trying to understand these verbal instructions without getting a very clear idea of what they mean. I believe that the forearm-racket angles as viewed on high speed videos at impact will have a strong correlation with each type of serve.
Kick serve - larger forearm-racket angle component as seen from behind, as for the examples above.
View the videos to see the complex racket head motion around impact for the Stosur kick serve and compare it to the slice serve.
Also, remember that the other component of the forearm-racket angle, seen in side views, is not very visible from behind. Another interesting point, well shown in the bottom pictures, is that the hand moves forward at more of an angle on the TS serve, at least for these two particular serves. Yes, and racket is pointed more vertical on flat serve, less for slice, even less for topspin, and the least, most horizontal, for twist serves.
The question is just - what is the effect of the forearm-racket angle, as seen at impact, on the serve? The headache is that there are two components of the angle to consider, sort of independently. The useful thing would be that these angles are very easy to observe in high speed videos of your own serve, as in the pictures. If you serve and your racket appears vertical from the side view but so does your arm, no forearm-racket angle, that would stand out as different from high level serves. If you try to hit a kick serve with the idea of hitting up on the ball but you are impacting near the racket's highest point - as for the slice picture discussed in #3 - at this point I think that the kick will not work well.
For now, when you know that you are looking at a high level flat, slice or kick serve just look at the forearm-racket angle at impact and see what your think - put the forearm-racket angle in your spotlight. When watching a Vimeo video online you can do stop-action single-frame forward and backwards using the arrow keys. Of course, practical application, rather than talking pure theory for theory's sake, is the best road to follow.
Your points are well made in that if you visualize the contact point and racket path, the racket to arm angle will likely take care of itself. I don't know either based on viewing high speed videos mostly in the 200-300 fps range. I think that the Stosur serve is a kick serve and the other is a kick because it shows the characteristic high bounce to the right. 240 fps is excellent for the strokes but to see the ball-string contact it takes higher frame rates. It is unknown, but the ball remains on the strings for the duration of 8 frames, so it should be about 2000fps.
The ball’s speed and direction are mostly defined by internal shoulder rotation (ISR - arm pronation), which absolutely has nothing to do with “swinging towards the side-fence” or whatever.
Next pictures of Nadal slice serve confirm that the wrist ulnar deviation and ISR are much more important than arm rotation in vertical plane, because of its slowness. It looks like a slice because the impact is at the highest point (see face in crowd behind the racket edge) that the racket reaches and the racket seems to be traveling to the side (away from the camera). This view might be along the travel direction of the hand as shown in the Frank Salazar videos from above and your composite pictures. That is the most arm distortion that I've ever seen, even more than in the Red Bull Tim Lincecum baseball pitch. The amount and timing of both forearm pronation & ISR probably can be seen in that Monfils video. On the otherhand, if you view from behind the server along the ball's path, you will see how the racket is tilted very clearly as most of the frames shown in this thread illustrate. 1) viewing from the side the racket appears nearly vertical and the forearm-racket angle is shown.
2) viewing from behind the forearm-racket has a distinct angle for the kick serve that differs from the forearm-angle for the slice and flat serves. 1) Viewing from the side, if you take a high speed video of yourself from the side and see the forearm in line with the racket you are not doing the serve like the high level servers.
2) Viewing from behind, if you are working on a kick serve and when the racket impacts the ball, the forearm-racket angle is too straight - the ball is impacted near the peak of how high the racket reaches in the motion - you are not going to get an effective kick serve. 3) Viewing from behind, if you want to hit a slice or flat serve and you impact with your forearm-racket too bent you will not be doing what the high level servers are doing. I have formed this view based on viewing high speed videos when the type of the serve was given. Examine the issue for yourself by looking at the forearm-racket angle at impact from behind for the kick serve. These angles change very rapidly around impact so you need high speed video to see the ball on the strings. One common piece of advice about serving in tennis says that you should use the same toss regardless of which spin you intend to hit, primarily to disguise your intention. It's certainly true that a toss can provide an early signal of which spin the server intends to hit, especially if the toss is at either end of the left-right range. How much advantage does the server gain, therefore, by trying to disguise the spin by not varying the toss?


By watching closely, though, you'll see that the toss for his topspin-slice serve, his usual first serve, is typically around two feet to the left of his ground centerline, a vertical line rising from halfway between his feet, but the toss for his twist serve is more than four feet to the left of that centerline.
Roger Federer has achieved widely held regard as either the greatest or second greatest (behind Rod Laver) player of all time, largely on the strength of his forehand and his serve.
The correct service toss in tennis is crucial for hitting flat, top spin and slice serves with accuracy, comfort and power. The tricky thing about the ball toss, though, is the consistency of placing the ball in the right spot.
So, where do you need to toss the ball for different tennis serves, and how do you improve your toss in the most natural way?
The ball toss for flat serves needs to be inside the court and somewhere between the head and the shoulder of the hitting arm. This instruction is only a rough idea – you need to experiment to find the best toss for your serve by making small adjustments.
The ball toss for the slice serve in tennis is almost the same as the toss for the flat serve. You may want to exaggerate the toss when you’re learning the slice serve by tossing the ball even more to the right (for right-handers) or even more forward.
That will force you to hit the ball from the side and make it spin more on the vertical axis so that you can get a better feel for the slice. But eventually, you’ll find out that the toss is basically the same as when serving flat – the difference is more in how you hit the ball.
When serving flat, you hit it from behind, while you hit it from the side when serving slice. When serving top spin in tennis, the ball needs to be tossed slightly behind the back but still inside the court. The contact is not as inside of the court as it is on flat and slice serves, as your main goal is not to generate the most force forward but to create a lot of upward momentum so that you can impart good top spin on the ball. Make sure to delay the rotation when serving top spin serves because that allows you hit more upwards.
The common misconception mentioned in the video is the idea of tossing the ball behind your back.
There are some great servers on the pro tour, like Roger Federer and Milos Raonic, who are able to hide their serves behind the same toss.
As you’ve seen, the toss for the flat and slice serve is almost the same once you reach a higher level of serving, but to hit the top spin serve from that same toss requires years of practice and very good hands. The reason Roger Federer can serve even a top spin serve from the same toss is that he is not looking for a big kick serve . It is obviously possible to hit a top spin serve from a toss that would typically allow you a flat serve, but you cannot impart very heavy spin. So, those serves that are being disguised are typically quite fast, and the ball doesn’t spin that much. When Roger opts for a kicker out wide (on the ad court), the toss is visibly more behind his back, and it is easier to read. The same transparency can be seen when he opts for a high bouncing kick down the middle to the deuce court . Start with theory, but then experiment and listen to your body to determine whether you’re able to serve with comfort and power.
If not, experiment with the toss in all directions until you find that ideal ball placement.
Through the years, I have learned to make a ball toss that goes vertically straight up and down, but as I watch Federer’s toss, the ball actually travels in a parabola from right to left.
But it is more pronounced when tossing for the top spin serve because you need to ball slightly behind the back. Today, still playing Open and ITF and ITA tennis, I’m often told after matches that my serve is very tough to read, combined with the pace and kick. In addition, I read a study that was done with a laser and computer, working with Mardy Fish.
It’s funny because I never thought about the fact that it would be hard to read if it was simply not as in front.
I was watching Kohlschreiber v Tipsarevic yesterday and noticed a very odd tossing action from Kohlschreiber.
In order to hit fast tennis serves, the hitting arm must move in the optimal biomechanical way. In order to achieve that, the edge of the racquet and therefore the edge of the hand must approach the ball for as long as possible until the pronation takes place.
If the pronation happens too early – meaning the racquet face is opening too early – then some of the energy will be lost and there will also be a loss of control because the forearm and the hand will be under strain. The following is a very good feel-based exercise that encourages the correct mental image to achieve this effect of delaying the pronation, resulting in a very clean hit of the ball on the serve. It’s obvious to anyone that, in order to send the ball somewhere with the racquet, the face of the racquet must get behind the ball as the ball typically leaves the racquet in the direction of where the strings are pointing. If you learn the flat serve first, you immediately start programming your forearm to pronate early. A similar thing happens with juniors where the result is more important than the development of technique. Serve technique is a very complex set of movements that don’t really make sense until you feel what effect they produce.
And the second one is pronation outward immediately after the contact where you would expect the racquet to continue curving inward with the forward edge. But, as you can see, the path of the racquet changes immediately after the contact – in fact, the ball is going out wide to the left and Roger’s arm is going wide to the right! Practicing the serve to the ad side also helps the player learn – mostly unaware – not to orient too early towards the court, to hit the ball with some rotation (even flat serves of top pros have tons of rpms), to align sideways related to the direction of where they want to serve, and to have a very comfortable swing path that allows for effortless acceleration of the racquet.
Once those things are in place, it’s not that difficult to work on a more flat serve when needed. Can we laterally conclude that increasing the angle between the racquet path and ball path provided every other motion is in sycn can really control the amount of slice and direction of the serve?
Once you feel the basics of how to apply the slice on the serve, you simply need to practice a lot and use targets.


I can’t explain to you what to do because in reality the difference is microscopic when it comes to describing the contact of the racquet and the ball. The pronation in serve and slice serve happens more after the contact while with the flat serve it happens before the contact.
I think that pendulum-like movement of the racquet begins at the “racquet drop” position, goes through the supination and ends with the pronation that amplifies the racquet head acceleration, is this correct? It may not display this or other websites correctly.You should upgrade or use an alternative browser. Viewed from the side, the racket at impact is roughly vertical, give or take a few degrees. Most likely (unless you are Rafter ) you will be visualizing a contact point slightly on the inside lower half of the ball, with the racquet face moving up and a little across the ball (say 7 to 1). I would definitely say that high speed videos show that for the typical serve the ball is contacted in the half of the racket face that is farther away from the handle.
The forearm-racket angle is not shown but the racket is tilted with its top toward the camera (Nadal leftie serve). From what I have seen in videos the kick serve, especially, has a very distinct forearm -racket angle signature as seen in high speed videos.
The player most often cited as a model of always using the same toss is one of the greatest servers of all time, Pete Sampras.
Against receivers who can't read the swing well, the toss might be a better or an additional clue, but such receivers are probably rare. As with any other gain, the key question is the cost: how easy is it to hit different spins with the same toss? Pete manages to hit a topspin-slice on a ball two feet to his left by leaning even farther to the left, thereby putting the ball to the right of his head, where it needs to be to hit that spin. If you try to do this with the ball to the right of your head at the moment of contact, your serve will fly much too far to the right, and you won't get enough topspin. Yes, the ball travels in parabola although it’s not that distinct with the toss for the flat or slice serve. He’s doing extremely well this year, so I guess it must be working well for him, but any thoughts on why Philipp has decided to employ this new toss? That’s how the muscles inside the body and eventually in the arm will produce the most force with the least amount of effort. I can now figure out why its easier serving to the add court out wide because the racquet path and ball path is almost parallel. Just practice the above drill for a while and you’ll find the right timing of pronation. Paying attention to details in the videos you included in the article, it is possible to see that right before contact. This will force you to hit at a lower height than a flat serve, and have an angle between the forearm and the racquet.
Is that "clicking" sound heard on a kick serve the strings brushing against the ball?
So, from reliability standpoint of the topspin forehand we should aim at the racquet’s center plus 3 strings. On the following pages, we'll examine the disguise an unvaried toss provides, how Pete Sampras tosses, the practicality of using the same toss for different spins, and several examples of what top current players do. A toss even slightly to the right cannot be hit as a twist serve, although it can be hit with a significant amount of topspin that will give it some kick. In terms of time, it's basically the difference between signaling the receiver one second before the ball is struck and signaling a fraction of second before the ball is struck, both of which are followed by the ball flying the length of the court before the receiver has to hit it. Proponents of the same-toss theory often cite Pete Sampras as proof that it can be done--and extremely well.
He leans even more to the left for his twist serve, so much so that it looks as if he might fall over, but his toss is so far left, the ball remains slightly on his left, where it needs to be to hit a strong twist serve. For his 60-40 serve, Roger tosses the ball around six inches to the left of his ground centerline and meets it around a foot to the right of and a foot in front of his head. I am almost automatically programming in the height and then the distance while i am stroking the shot, and completely forgetting about mechanics. My thinking is he’s just cutting out what is really an unnecessary drop of the tossing arm and therefore increasing the accuracy and consistency of his toss and therefore serve. If I do this on the deuce court, even with a fast hard serve, it goes to the comfort zone of the right handed player and not really out wide that will make him move.
I am trying to improve my tennis technique and to achieve this the feedback is essential, from my body and from video recording myself. I mean, the movement of the racquet is from “neutral” to “supination-pronation”, not from “neutral” to “pronation”.
Whether the receiver reads the spin from the toss or from the swing, she knows which spin is coming by the time the ball is on its way. If you watch video of Pete's serve, you will see that he does almost always toss to his left, and he does hit those tosses with spins ranging from a 50-50 topspin-slice to a full twist. You could probably manage to hit a range of spins from twist to topspin-slice by tossing every ball around a foot to the left of your head and then leaning left by varying degrees to accommodate each spin, but you couldn't hit any serves with more than around 50% slice, the sidespin component of your twist might be limited, and you would meet your topspin-slice somewhat lower because of your lean. I remember you in another video demonstrating that with a “big” supination before the pronation.
Given the time between frames and the contact time, usually high speed video at 240 fps with catch one frame of the ball during contact.
For most receivers playing at the level where serves are hit with significantly different spins, reading the server's spin from her swing should not be difficult, and that information would be registered before the ball is struck. This thread is mostly not about that angle seem from the side view but the one seen from behind.



Tennis washington dc tournament
Ringing in my ears make it stop video
19.07.2015 admin



Comments to «How to slice serve in tennis videos gratis»

  1. Tonny_Brillianto writes:
    Two patients' complaints started instantly right after exposure been linked with.
  2. GOZEL1 writes:
    Typical after a few days, then.
  3. sican_666 writes:
    Claim that ignoring or slighting this producing.
  4. Ayten writes:
    And ossification of the cochlea important elements in tinnitus.