Discussion in 'Tennis Tips/Instruction' started by swfh, Jul 10, 2013.
I will post a video from the back soon.
Thanks, all serves went in
Video is private?
Update when video is not private, or provide the private link.
I think that it is fixed..
Not bad really at first glance. Contact point maybe a bit low, but other than that it looks really fine. A back perspective video would be useful to make further assumptions though. What's your level?
Given the angle, everything looks "good." Hitting your spots, getting the spins you want, not double-faulting, and all that good stuff can't possibly be gleaned from such a video.
Personally, I prefer a higher ball toss. The ball looks like it wanders a little into kick-serve territory, from the video's perspective, but that's fine. I love a good kick-serve as a first serve--in fact, I almost exclusively hit the Topspin/Slice-Kick serve for my first serve. For me, it's the perfect blend of pace and kick.
It looks like your hitting the ball slightly on the drop, as opposed to hitting at the apex or on the rise (contact point). Your not getting much air time off the ground and your serve arm is not fully extended at impact. Bend your knees slightly for more elevation, and have your chest pointing toward the sky more in your trophy pose. I think these will add more pop to your serve, otherwise, it looks really good to me. What is your level...guessing 4.0-4.5? Good luck!
USE YOUR LEGS when you are serving. Go watch Berdych right now and take notes on his legs when he serves.
Now go watch your video and look at your legs. A serve is an explosion of energy, and your front foot might be moving 3 inches which is overall hampering your ability to spin and pop the ball more. Also, your knee bend is critically bad.
^Almagro and Wawrinka can regularly hit over 120mph with little leg drive. And for a tall guy, Berdych hasn't a really good serve. Decent so it isn't a weakness, but not that good. Granted, I think it has more to do with his high toss than his legs...
Is that an issue then? :twisted:
They are the exception, but let's not say the legs don't help our serve.
Berdych has a great serve.
Just about the video quality for seeing the parts of the serve -
1) In direct sunlight your camera's automatic exposure control chooses a very fast shutter speed - there is little motion blur and the position of the racket can be seen. Shutter speed 1/1000 sec? That is a big plus.
2) 30 fps or 24 fps is not fast enough to see the faster parts of the service motion. High speed video is needed.
3) If the lens allows, frame the serve so that the frame shows from below the feet to above the racket (or the full toss). Minimize the empty space below the server.
4) The viewing angle directly behind the server, viewing along the ball's trajectory, with the camera high will sometimes catch some very informative frames, especially the one at ball impact.
This is the best frame to catch in order to see what is going on with the serve.
1) One shoulder is high and one is low. The upper arm is somewhat in line with the line between the shoulders. See Ellenbecker safety video on the shoulder and impingement risk.
2) The arm is straight at impact.
3) There is an angle between the arm and racket at impact.
The racket head speed is created mostly by the rotation (turning) of the straight arm (and not very much by other motions). See my Vimeo serve videos.
If you repeat several serves with the camera behind you, you can eventually catch a frame with impact - like the serve shown - and be able to see clearly how your serve compares.
Your leg thrust barely or does not get your feet off the ground. See thread on knee bend.
BTW - The dark background shows dust from the Har True court surface and a puff at ball impact. I don't like to breath that stuff anymore. The courts need watering.
I will take what you all have said and will upload another vid soon.
And yes, the courts need watering
You should hit it really, really hard and fast and in the corners like the professional tennis players do, like that guy Roger Ferreder.
Not saying legs don't help, but it's overrated. And I guess we're going to agree to disagree on the last sentence, because I feel for a guy who's 6'5", he could serve even better than this.
Put a shirt on. :lol:
All threads with tennis videos posted without shirts on should be deleted.
Looks nice and fluid to me. How does it feel to you?
Looking forward to back-centered, court level view videos.
Nice, you might want to try to turn the hips a little bit earlier.
The distance is a bit far so the resolution is low and the fps is low as well, here is a pic of all the frames of one serve:
Excellent work on getting creating images (how did you do that?).
Depends on the source material, the level of detail and the filters or processing I need. Usually Adobe Premiere pro, Vegas Pro, Avidemux or VirtualDub with Avisynth and Photoshop for post processing if I have to use images.
In this case I selected the most suitable serve and cropped the frames in Avidemux, ran a video to JPEG convertor and processed the images and created a contact sheet in Photoshop
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