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Thread: What is weight shift?

  1. #71
    Always learning... Eric F's Avatar
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    Quote Originally Posted by Shawn View Post
    Shift and transfer does mean different things in the discussion. Shift means the COG moving forward "while" maintaining coil. The weight is still back during the shift, while in transfer mode the weight is released forward.
    In the "release forward", is the COG continuing to move forward (in space)?
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    Certified softball maniac Shawn's Avatar
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    Quote Originally Posted by Eric F View Post
    In the "release forward", is the COG continuing to move forward (in space)?
    I would say no if I understand correctly. The lower body starts from toe touch onward, so I would say no.
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    Quote Originally Posted by Shawn View Post
    I would say no if I understand correctly. The lower body starts from toe touch onward, so I would say no.
    Okay. Thanks.
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    I eat, sleep and breathe softball FiveFrameSwing's Avatar
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    Quote Originally Posted by Eric F View Post
    Since you insist on continuing to beat on the semantics...Yes, "shift" and "transfer" can mean the same thing. They can be synonymous. However, a quick Google dictionary search shows that there are multiple definitions for each word, both noun and verb. The English language is imprecise and messy, and context is often the most critical part of understanding the real intent of the words being used. In the context of the swing, I'm choosing to use those words in a non-synonymous way to label (what I see as) two different actions. I will probably continue to so until different words make more sense to me, or my understanding of the movements changes.

    I'm not talking about two different ways to move the body forward. One is a movement of the body in space (shift), the other is a change in ground reaction force location (transfer). Although they can happen concurrently, there is not a rigid connection between the two actions.
    Yet you stated you needed to redefine the words .

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    Quote Originally Posted by Eric F View Post
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    Quote Originally Posted by Shawn View Post
    Shift and transfer does mean different things in the discussion. Shift means the COG moving forward "while" maintaining coil. The weight is still back during the shift, while in transfer mode the weight is released forward.
    Sounds like someone is attempting to redefine words. But what the heck ... let's see the dictionary you are using.

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    Certified softball maniac pattar's Avatar
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    Quote Originally Posted by FiveFrameSwing View Post
    Sounds like someone is attempting to redefine words. But what the heck ... let's see the dictionary you are using.
    Analyzing Weight Shift and Ground Force in the Baseball Swing - BodiTrak Sports

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    I eat, sleep and breathe softball FiveFrameSwing's Avatar
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    Thank you.

    Notice that the word 'shift' was applied to both COM (center-of-mass) and COP (center-of-pressure).

    Also notice the article used the word 'transfer' once, and did so interchangeably with their use of the word 'shift'.

    Decent article that may open up the discussion. Decent conclusion also ... "not as much a transfer of weight as it is an exertion of force".

    Still comes down to the 'how' that is important.

    Edited to add excerpt from the article.

    While it’s common for athletes and coaches of throwing or striking sports to emphasize the importance of force in the push off leg, force in the plant (or lead leg) is actually more closely tied to speed.
    Last edited by FiveFrameSwing; 11-12-2017 at 05:07 PM. Reason: typo

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    The article says "unweighted" too!

    "At footstrike he shifts all of his bodyweight into his front leg."
    I still like to think against, considering the weight or center of mass is still back.

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    I can talk softball all day BadMonkeys's Avatar
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    @Shawn , "Cano is applying tremendous vertical and horizontal force through his lead leg to help generate rotational speed, but his weight (represented by his center of mass) remains back. Cano isnít shifting his center of mass significantly, but rather creating GRF with his lead foot, therefore shifting his center of pressure"
    I would say this confirms your observation that you don't see much shifting.

    Maybe the distinction between center of pressure and center of mass is a better focus than trying to make a distinction between shift and transfer when they're really synonymous? I don't mean that in any negative way. It's enlightening to me as well.

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