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  • Spine: A curved lesson

    Hello All,

    I created this thread to show how human body plays with gravitation.
    Our spine is a marvel and very flexible but elastic at once.
    Its function is not in carrying huge loads but it absorbs them and transmits the forces to the ground.

    Here is a little animation that shows 3 perspectives:
    1. A straight spine (doesn't exist).
    2. A flexible one (lumbar)
    3. A more flexible one (cervical).
    It is a very simplified view but may bring some questions about it?

    [flash]http://www.somasimple.com/flash_anims/scurve2.swf[/flash]


    Click on the PLAY button.
    Last edited by bernard; 21-08-2007, 07:50 PM. Reason: typo
    Simplicity is the ultimate sophistication. L VINCI
    We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

    Everything should be made as simple as possible, but not a bit simpler.
    If you can't explain it simply, you don't understand it well enough. Albert Einstein
    bernard

  • #2
    If we omit the vertical motion and place the origins of forces at the same level, it is possible to see, firstly, the horizontal forces created with the flexible mediums. But the miracle happens later...

    [flash]http://www.somasimple.com/flash_anims/scurve3.swf[/flash]

    Click on the PLAY button.
    Last edited by bernard; 21-08-2007, 10:09 AM. Reason: typo
    Simplicity is the ultimate sophistication. L VINCI
    We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

    Everything should be made as simple as possible, but not a bit simpler.
    If you can't explain it simply, you don't understand it well enough. Albert Einstein
    bernard

    Comment


    • #3
      Then it is more interesting to look at, in a closer manner, the vertical components of these forces.

      If we were able to add an horizontal "vector" because we changed the direction of the applied gravitational "fate", it seems normal to think that something happened there and that it may be useful for our "weak" spine.

      [flash]http://www.somasimple.com/flash_anims/scurve4.swf[/flash]
      Last edited by bernard; 21-08-2007, 10:09 AM.
      Simplicity is the ultimate sophistication. L VINCI
      We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

      Everything should be made as simple as possible, but not a bit simpler.
      If you can't explain it simply, you don't understand it well enough. Albert Einstein
      bernard

      Comment


      • #4
        These are cool images Bernard..
        With respect to the nervous system, I wonder if there is a way to depict the fact that the forces are operating on a system that is fixed at both "ends"..?
        Diane
        www.dermoneuromodulation.com
        SensibleSolutionsPhysiotherapy
        HumanAntiGravitySuit blog
        Neurotonics PT Teamblog
        Canadian Physiotherapy Pain Science Division (Archived newsletters, paincasts)
        Canadian Physiotherapy Association Pain Science Division Facebook page
        @PainPhysiosCan
        WCPT PhysiotherapyPainNetwork on Facebook
        @WCPTPTPN
        Neuroscience and Pain Science for Manual PTs Facebook page

        @dfjpt
        SomaSimple on Facebook
        @somasimple

        "Rene Descartes was very very smart, but as it turned out, he was wrong." ~Lorimer Moseley

        “Comment is free, but the facts are sacred.” ~Charles Prestwich Scott, nephew of founder and editor (1872-1929) of The Guardian , in a 1921 Centenary editorial

        “If you make people think they're thinking, they'll love you, but if you really make them think, they'll hate you." ~Don Marquis

        "In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists" ~Roland Barth

        "Doubt is not a pleasant mental state, but certainty is a ridiculous one."~Voltaire

        Comment


        • #5
          Originally posted by Diane
          I wonder if there is a way to depict the fact that the forces are operating on a system that is fixed at both "ends"..?
          Perhaps these old trials need some refinement:

          [flash]http://www.somasimple.com/flash_anims/slider.swf[/flash]
          [flash]http://www.somasimple.com/flash_anims/slider02.swf[/flash]
          Simplicity is the ultimate sophistication. L VINCI
          We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

          Everything should be made as simple as possible, but not a bit simpler.
          If you can't explain it simply, you don't understand it well enough. Albert Einstein
          bernard

          Comment


          • #6
            So, the first conclusion that may give a flexible and elastic spine is this one :
            • A straight segment transmits very well forces and loads.
            • A flexible absorbs them, changing hard rules and "plays" with gravitation.
            Simplicity is the ultimate sophistication. L VINCI
            We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

            Everything should be made as simple as possible, but not a bit simpler.
            If you can't explain it simply, you don't understand it well enough. Albert Einstein
            bernard

            Comment


            • #7
              It becomes also understandable that three curves act better than a single one but only if the load is applied on the top of the "heap".

              It explains why the brain is still there: It is the best place.
              Last edited by bernard; 18-01-2007, 07:21 PM. Reason: missing word
              Simplicity is the ultimate sophistication. L VINCI
              We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances. I NEWTON

              Everything should be made as simple as possible, but not a bit simpler.
              If you can't explain it simply, you don't understand it well enough. Albert Einstein
              bernard

              Comment


              • #8
                The x-ray pin-up calendar. It reveals the spine bending in several directions. Something for all the spinalists out there.

                "Just when you thought models could not possibly get any skinnier… Eizo, a manufacturer of medical imaging equipment, has released a revealing new calendar to promote their wares. The Eizo X-Ray Pin-Up Calendar is at once hilarious and inventive, a most creative way of promoting their brand to their clientele and beyond. Hat’s off to BUTTER, the Berlin-based advertising agency who came up with this little stroke of genius for Eizo."
                Diane
                www.dermoneuromodulation.com
                SensibleSolutionsPhysiotherapy
                HumanAntiGravitySuit blog
                Neurotonics PT Teamblog
                Canadian Physiotherapy Pain Science Division (Archived newsletters, paincasts)
                Canadian Physiotherapy Association Pain Science Division Facebook page
                @PainPhysiosCan
                WCPT PhysiotherapyPainNetwork on Facebook
                @WCPTPTPN
                Neuroscience and Pain Science for Manual PTs Facebook page

                @dfjpt
                SomaSimple on Facebook
                @somasimple

                "Rene Descartes was very very smart, but as it turned out, he was wrong." ~Lorimer Moseley

                “Comment is free, but the facts are sacred.” ~Charles Prestwich Scott, nephew of founder and editor (1872-1929) of The Guardian , in a 1921 Centenary editorial

                “If you make people think they're thinking, they'll love you, but if you really make them think, they'll hate you." ~Don Marquis

                "In times of change, learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists" ~Roland Barth

                "Doubt is not a pleasant mental state, but certainty is a ridiculous one."~Voltaire

                Comment


                • #9
                  The x-ray pin-up calendar. It reveals the spine bending in several directions. Something for all the spinalists out there.
                  Nice...um...curves. :angel:
                  John Ware, PT
                  Fellow of the American Academy of Orthopedic Manual Physical Therapists
                  "Nothing can bring a man peace but the triumph of principles." -R.W. Emerson
                  “If names be not correct, language is not in accordance with the truth of things. If language be not in accordance with the truth of things, affairs cannot
                  be carried on to success.” -The Analects of Confucius, Book 13, Verse 3

                  Comment


                  • #10
                    Awwww yeah.
                    Rod Henderson, PT, ScD, OCS
                    It is useless to attempt to reason a man out of a thing he was never reasoned into. — Jonathan Swift

                    Comment

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