Finding my strokes after 20 years. Stroke video inside

Discussion in 'Tennis Tips/Instruction' started by Greg G, Jul 1, 2012.

  1. LeeD

    LeeD Bionic Poster

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    Should you prepare earlier?
    It's really exagerated in the Serena William's backhand drill commercial on TV, but you do the opposite and wait till the last possible moment.
     
  2. Greg G

    Greg G Professional

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    Yep, I do prepare late(r) on the FH compared to the backhand. Thanks for reminding me (again)! :)
     
    Last edited: Jul 23, 2015
  3. Greg G

    Greg G Professional

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    Well my Sony Tennis Sensor fell apart, so these are the last videos with data that I'll have for a while...

    Live hitting



     
  4. Greg G

    Greg G Professional

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    Some light drills, since I had just donated blood a few days ago, not anticipating the MASSIVE effect on stamina it could have on the court. :eek:

    Forehand, taken from 3 angles:



    Switched to a Wilson RF97 which smoothed out the swing immensely. Loooooove the plow. And perhaps the weight has forced me to really loosen up the grip, leading to a nice release at contact:



    Backhand- topspin, slice, drop shot:



    Started practicing touch volleys, which was pretty fun! I may do this more often.

     
    Last edited: Feb 4, 2016
  5. Greg G

    Greg G Professional

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    Just checking in after a long time. Pretty much all good except for horrible fitness :p

     
  6. Chas Tennis

    Chas Tennis Legend

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    I believe that the best high level backhands are different than yours in the amount of upper body turn used and how it is used, by the chest directly pressing on the upper arm for initial acceleration. For this issue, get a good high speed video up close in direct sunlight and compare your backhand to those of Wawrinka, Gasquet and Justine Henin. Federer is not so clear on this issue.

    Read posts in the second half of the thread.
    https://tt.tennis-warehouse.com/ind...art-forward-swing.462997/page-3#post-11077026

    This technique likely increases racket head speed and may cause added stress to the arm or elbow. How is your elbow?

    You are using another technique with much less upper body turn and the upper arm is driven much earlier with the shoulder muscles.

    It is too bad that the many pictures your posted from Photobucket are no longer available.

    You did some excellent stroke comparison work using Kinovea. I now use version 8.25 and it has millisecond time scales for display. It also allows a 'countdown' mode where two stroke videos can be set side-by-side and their impact frame coordinated, impact is time 0 ms.

    What was that Casio model where you got high frame rates from it? Was it manual shutter speed also with certain settings? Still using it?
     
    Last edited: Oct 14, 2017 at 11:31 AM
  7. Greg G

    Greg G Professional

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    Hi Chas,

    Actually my backhand is not much arm. The initial impulse is with my right hip then everything follows. One point I do pay attention to is stopping my hips. A “good stop” will transfer the energy up the chain. Everything is pretty loose. I do tend to release the racquet at follow through nowadays (just let it go), instead of holding it. Pretty much a solid shot for me since my teen years. Every other stroke will go awry except my topspin backhand.


    Sorry about the lower quality of my recent videos, the sony tennis sensor and associated apps is just so convenient. Just a few taps and I get the finished result!

    [​IMG]

    [​IMG]


    Sent from my iPhone using Tapatalk
     
    Last edited: Oct 14, 2017 at 3:51 PM
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  8. Limpinhitter

    Limpinhitter G.O.A.T.

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    The frames do a great job of showing what you're really doing. Nice 1hb btw.
     
  9. Chas Tennis

    Chas Tennis Legend

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    I don't agree. Frame rate is slow, only one frame at speed and before impact. There is too much motion blur to see the racket head or ball. The business end of the stroke is guesswork.

    Where is impact? Is the face of the racket closed at impact? Where is impact on the face of the racket? Is the chest pressed to the upper arm for the start of the forward drive?
     
    Last edited: Oct 15, 2017 at 2:51 PM
  10. Limpinhitter

    Limpinhitter G.O.A.T.

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    I don't need more to evaluate his stroke.
     
  11. Greg G

    Greg G Professional

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    Weather pretty much sucks here for quality frame rates, Chas. But ill see what I can do for you ;)

    I can answer where the ball hits the racquet face. If you trust the sensor.

    [​IMG]

    Here’s the heat map for my backhands for that session:

    [​IMG]

    My forehands, in comparison, where Al over the place :p

    [​IMG]



    Sent from my iPhone using Tapatalk
     
  12. Chas Tennis

    Chas Tennis Legend

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    Wow, what is the 'heat map'?? Infrared images?
     
  13. Greg G

    Greg G Professional

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    Basically it’s just a compilation of all the contact points on the racquet face for a given period. Red is where most contact is made.

    I know it’s a good day when they are consistently in the center. My excuse for the forehand is I hadn’t played in 2 weeks

    But in general my backhand contact point is more consistently in the center compared to the forehand. Here’s a good forehand day...

    [​IMG]

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    Last edited: Oct 15, 2017 at 4:28 PM
  14. thomas daniels

    thomas daniels Rookie

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    Your hitting arm is too straight on your swing and when you do your unit turn on it, hold the throat with your non-racket hand. I would then break my wrist at contact and let the racket do all the work from there. And yeah, use your legs more before and during your strokes.
     
  15. Greg G

    Greg G Professional

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    Is this comment based on the first post of the thread (5 years ago? )


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