Tennis slice serve youtube yahoo,tinnitus behandlung chinesische medizin youtube,is there a cure for ringing in the ear dizziness - You Shoud Know

Author: admin, 31.10.2015. Category: Cure Ringing Ears

The tennis slice serve is a very important shot that can effectively pull your opponent off the court and open up the court for you to start an offensive attack. The lack of topspin in this type of tennis serve gives a disadvantage to the server since the net clearance is very limited.
In addition, the tennis slice serve is best to use if your opponent has a weak forehand or when your opponent is standing far towards his backhand side. The location of the toss for a tennis slice serve is different from other types of serves particularly with the flat serve or with the topspin serve, but the mechanics are similar. Since a slice serve is normally used for first serve, it is therefore necessary to add power to it.
To do this, turn your shoulders at around 45 degrees towards your back or towards the back fence while your hips remain with their original position. Then slide your right foot (for right-handed players) to the right to facilitate your body alignment. This position of the tennis slice serve is also typical with the other forms of tennis serves especially with the topspin serve.
However when you execute a tennis slice serve, your upper arm should be slightly slanted towards your front. The most important aspect to look into in executing a tennis slice serve is the racket edge-first position during the swing. From the drop down position (above) of the racket, the racket should be on its edge-first position as you start the swing.
Seconds before contact, the hitting arm elbow should start to straighten but the racket should still maintain the edge- first position as it approaches the ball.
After contact, your racket should continue its movement to right as the effect of the left to right (center to 3.00 o’clock brushing) motion.
The tennis slice serve ends on the left side of your body, just like the other tennis serves.
The point where the ball lands on the court is also an indication if the tennis slice serve was executed perfectly. Then you've got to check out our FREE in-depth slow motion analysis video of how Federer and other pros prepare for their forehands.
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 topspin-slice serve, as the name implies, has a mixture of topspin and sidespin, generated by striking the ball more or less from its center toward what would be 1:30 on its face if it were a clock. 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? The Slice Serve can be an effective tool to keep opponents off balance during a return of serve in tennis. In both situations, you can use the slice serve to either hit an ace or force a weak return. To be able to perform it properly, you can make use of the net posts as your point of reference. Whilst in a tennis slice serve, the ball is tossed slightly further to your right side (if you are right handed player). To do this, proper knee bending and body coiling during the wind-up movement should be accomplished.
As a result, you should hit a wide serve or your serve should hit the sideline of the service box.
That’s because your racket swing should be more to the side than going straight upward to produce the slice effect. Edge-first positron means that side of the racket head is the one facing the ball instead of the racket face or the stringbed. Then the edge-first position starts to change and the racket angle starts to slightly face the ball. A slice serve is also evident with your right foot landing a bit more forward than the other serves like the topspin-slice serve. Check out our Tennis Ebooks and be on the way to improving all of your tennis strokes without the trial and error. 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. The topspin component allows the ball to clear the net by a greater margin, and the sidespin makes the ball curve somewhat to the left both in the air and on the bounce. 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. For right-handed servers, the racket face should strike the center part of the ball and brush the ball to the imaginary 3:00 o’clock position. A powerful slice serve normally curves to the left side of the court (right side for left-handed server) when the ball is in the air and skids off to the left after it bounces on the ground. A proper stance is achieved when your body faces to the right hand net post if you are a right-handed player.
This is to ensure that there is no obstruction when you release the ball at the start of the ball toss. The racket edge-first position is maintained from the time your arm starts to drive upward, to your forward swing, until you swing to the right.
This is due to the increased inertia lag in your racket, increasing the angle between the racket and your forearm to 90 degrees. Thus, if the execution is not done perfectly, the ball can land two feet towards the center. The tennis slice serve is definitely a serve that every tennis player should consciously work on to perfect their overall serving game. 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.
This combination also allows the serve to be hit quite hard (harder than a pure topspin or slice), which makes it by far the most common first serve used in advanced tennis.Left foot points more or less toward the right net post. 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”.
If you use Eastern backhand grip, you should hit the ball with the forehand side of the racket face. If you successfully toss the ball, it will allow you to swing across the ball in the later stage of the serve execution. This racket drop position allows you to maximize your swing length and create a fast racket speed. The racket face should strike the ball at the center part of the ball, brushing it towards the 3.00 o’clock position. 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. Once you are in the right position, coil your upper body in such a way that your shoulders are directly facing the net. For beginners, practice more and do some experiments in tossing the ball until you find the right way to toss the ball without losing your balance during the swing.
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.



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