modern forehand

Discussion in 'Tennis Tips/Instruction' started by heartattack, Mar 25, 2013.

  1. heartattack

    heartattack Semi-Pro

    Joined:
    Oct 20, 2011
    Messages:
    409
    Location:
    Worlds coldest place!
    I would like to know Why Pro players open up their finger on the non hitting arm? before our coach would just say point the ball on your non hitting arm.
     
    #1
  2. Tight Lines

    Tight Lines Professional

    Joined:
    Jan 14, 2013
    Messages:
    809
    Location:
    Sparkill, NY
    No reply?? I was curious about this one too. Actually, I am more curious about the extended fingers at the end of a serve.

    I do extend my fingers during a trophy position, then I fold them when I hit. Just wondering whether the open fingers at the point of impact either at serve or forehand do anything or they are just a matter of preference.

    Harry
     
    #2
  3. WildVolley

    WildVolley Legend

    Joined:
    Jun 22, 2007
    Messages:
    5,899
    I'm not sure anyone knows for certain. It certainly isn't a crucial part of hitting a modern fh. Why don't you just try doing it and see if it feels natural?
     
    #3
  4. tkoziol

    tkoziol Rookie

    Joined:
    Jan 18, 2013
    Messages:
    293
    Location:
    Charleston, SC
    Do you have a picture? I'm not 100% sure what you are asking...
     
    #4
  5. sureshs

    sureshs Bionic Poster

    Joined:
    Oct 1, 2005
    Messages:
    35,673
    What is opening up their finger mean? What finger? Only one?
     
    #5
  6. heartattack

    heartattack Semi-Pro

    Joined:
    Oct 20, 2011
    Messages:
    409
    Location:
    Worlds coldest place!
    #6
  7. Tight Lines

    Tight Lines Professional

    Joined:
    Jan 14, 2013
    Messages:
    809
    Location:
    Sparkill, NY
    #7
  8. TheCheese

    TheCheese Professional

    Joined:
    May 10, 2012
    Messages:
    954
    The opening of the non-hitting is actually the secret to the pro's exceptional timing and power.

    Opening the fingers of the left hand activates the SSC and causes an extreme increase in racket head speed.

    But really, it's just because it naturally tends to happen. It doesn't do anything.
     
    #8
  9. Cheetah

    Cheetah Hall of Fame

    Joined:
    Mar 29, 2011
    Messages:
    3,980
    Location:
    San Diego
    The opening of the fingers and more importantly the extension of the wrist adds tension to the forearm which facilitates a quicker or should I say more beneficial use of the pull over of the off arm. An arm with an extended wrist "wants" to be pulled across the body and will be more connected with the torso.

    Try it yourself and you will notice the difference between extended and non extended
     
    #9
  10. sureshs

    sureshs Bionic Poster

    Joined:
    Oct 1, 2005
    Messages:
    35,673
    There is definitely a lot of tension there. I have seen pics of pros where the fingers appear to be twisted in a grotesque manner.
     
    #10
  11. user92626

    user92626 Legend

    Joined:
    Jan 27, 2008
    Messages:
    6,266
    Do rec players close the fingers after serving or letting go of the racket in the strokes?
     
    #11
  12. Tonyr1967

    Tonyr1967 Rookie

    Joined:
    Mar 6, 2013
    Messages:
    143
    +1.


    10 char
     
    #12
  13. Chas Tennis

    Chas Tennis Hall of Fame

    Joined:
    Feb 17, 2011
    Messages:
    4,370
    Location:
    Baltimore, MD
    Relaxed & tensed muscles with the same position.

    The fingers can have any position and the opposing muscles that move the fingers can still have a large range of equal and opposing forces. That is, the muscles can be anywhere from 'relaxed' with no activation to maximum activation and force as in an isometric exercise. [Isometric means to apply forces but not to move.] It is hard to tell in the pictures whether the muscles are relaxed or supplying forces.

    Demo. Look at the Nadal picture and hold your hand how he has his. While holding the same pose completely relax all muscles. Then apply maximum forces from opposing muscles without moving as is often done during isometric exercises. You can do both with the same hand position.

    I believe for the serve relaxing the muscles allows for a better stretch.

    I recently read this so I'm not sure of my interpretation. I used to think of the stretch shortening cycle (SSC) as the extension of the muscle-tendon assembly to near the end of its range of motion - like stretching that muscle-tendon assembly like a rubber band. Then, if the prestretched muscle-tendon is promptly allowed to shorten during the athletic movement, it adds force. Using prestretched muscles may be naturally faster also.

    However, I now believe from my interpretation of some recent research that it is not the muscle-tendon assembly that stretches - it is mostly a large protein molecule called Titin in each muscle cell (sacomere). The interesting thing is that Titin can probably chose to stretch well before the muscle-tendon assembly is near the end of its range of motion - maybe at any muscle length. ??

    See Figure 7 for the proposed interaction of Titin in each muscle cell.
    Regulation of muscle force in the absence of actin-myosin-based cross-bridge interaction
    http://ajpcell.physiology.org/content/299/1/C14.full

    See reply #5
    Biomechanical References for Tennis Strokes
    http://tt.tennis-warehouse.com/showthread.php?t=427364

    Is an EMG signal present when the muscle shortens using only pre-stretch?
    http://tt.tennis-warehouse.com/showthread.php?t=441023

    Maybe if Nadal has applied a lot of muscle force to hold his hand as in the picture then the stretching characteristics of his muscles would be much different. For example, maybe his arm acts like a rigid mass, a counterweight? If relaxed it would not act the same. ? Federer's off hand looks relaxed. ?
     
    Last edited: Mar 26, 2013
    #13
  14. ga tennis

    ga tennis Hall of Fame

    Joined:
    Apr 19, 2010
    Messages:
    1,710
    The non hitting hand being fingers together or apart has nothing to do with the stroke. You dont pull the non hitting arm it happens naturally.
     
    #14
  15. caltiger123

    caltiger123 New User

    Joined:
    Mar 9, 2013
    Messages:
    7
    Location:
    I live in a place with access to the internet.
    ^^^+1

    I don't think I could have put it better myself.
     
    #15
  16. heartattack

    heartattack Semi-Pro

    Joined:
    Oct 20, 2011
    Messages:
    409
    Location:
    Worlds coldest place!
    looking some of those pix above.. doesn't seem relax.
     
    #16

Share This Page