Does serving motion put more stress on the left knee?

Discussion in 'Health & Fitness' started by sportsfan1, Aug 3, 2012.

  1. sportsfan1

    sportsfan1 Hall of Fame

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    Serve motion starting with platform serve, right handed with left foot parallel to the baseline. Shoulder turn away.
    As I rotate upper body back towards the net and go to contact, this feels like it creates stress/torque on the left side (facing the net) of the left knee? Does this sound right, or is it wrong technique? Just wondering and wanted to get some thoughts...
     
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  2. scotus

    scotus Legend

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    My aching left knee agrees with you.
     
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  3. Say Chi Sin Lo

    Say Chi Sin Lo Legend

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    I dont know if it's service motion itself, or the possibility of you landing on your left leg first after contact?

    Platform server here and I land on my left leg. But no achy knees here though.

    Haha it's hard to isolate it to the service motion. A lot of things in tennis can make your knees hurt.
     
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  4. scotus

    scotus Legend

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    Yes, it is mostly the pounding it takes on repeated landing, especially if done on hard courts.

    But IMHO another contributing factor is the slight twist on the knee joint when I try to lean my left hip into the court and "stretch the bow."

    Of course, these things never hurt me when I was younger.
     
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  5. Say Chi Sin Lo

    Say Chi Sin Lo Legend

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    That's why I'm desperately looking for clay and grass courts to play on. Sadly there are none in the Bay Area. Well there are, but unless you're in the 1%, you ain't playing on them.

    Can you accomplish the same "hip into the court" thing with a simple knee bend?

    (I think) I do the same "hip into the court" but I don't think there's any twisting of my knee. I bend my knees to accomplish a squat and then explode up.
     
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  6. mikeler

    mikeler G.O.A.T.

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    I use a pinpoint stance because of the stress on my left knee with platform.
     
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  7. sportsfan1

    sportsfan1 Hall of Fame

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    The landing on left leg does have an impact that transfers upwards, however I think when your feet don't get off the ground, there's a greater twisting force on the left knee as the upper body uncoils back towards the net through contact and follow through.
     
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  8. usta2050

    usta2050 Rookie

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    thank you all for the tips, i will try pinpoint as my left knee hurts a when my feet are stuck on the ground and my left knee gets twisted.
     
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  9. Say Chi Sin Lo

    Say Chi Sin Lo Legend

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    Exactly, wouldn't you want to meet the ball at its peak?
     
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  10. Chas Tennis

    Chas Tennis Hall of Fame

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    Not certain without double checking but "with left foot parallel to the baseline" does not sound like the technique that I have read about. I usually see 'point the feet toward the net post' - more like 30-50° to the baseline. Research that angle. If you have a DVR do stop action on the pros right before they serve.

    The knees should be properly oriented for loading. Usually the femur is rotated by hip joint rotation.

    You should do a video of yourself. Use 60p if your camcorder or DSLR has that mode.
     
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  11. TennisCJC

    TennisCJC Legend

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    Yea, I agree the front knee takes a stress. You can dimenish the amount of torque by pushing up and getting off the ground before you rotate into contact. Or, you can open the front foot angle to be closer to 45 degree angle to baseline in stead of parallel. Or, avoid using an extremely closed stance.

    Just had knee surgery and will tinker with the front foot angle, stance angle, degree of backward rotation, and upward thrust to minimize stress while striving to maximize performance.
     
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  12. jwbarrientos

    jwbarrientos Hall of Fame

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    Yes, platform stance plus rotation leads my left knee to pain; my ways to deal are:

    Jumping before rotating or not rotating so fast, in this case I move the left foot orientation.
     
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  13. Say Chi Sin Lo

    Say Chi Sin Lo Legend

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    That should be the natural flow of motion to begin with?
     
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