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explaining shin splints and stress fractures (Read 114 times)

sport jester


Biomimeticist

    See the source image

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    With that picture, you can clearly see that the Talus bone is the hinge point for both the Tibia and Fibula. It also shows what I call the, "gas tank," perspective of the bone. Since it's much more narrow at the base of the bone and wider in front, that angle allows for maximum range of motion in forward reach to maximize stride length, but forces the Fibula outward as it moves forward.

     

    So when I write that shin splints are a byproduct of too much forward lean, not only does the above picture show the stress load distribution to the foot, but the cause of pushing the Fibula outward as the wedge shape of the bone, "splinters," the Fibula outward.

     

    The biology of the bone is what causes the pain.

     

    Funny what happens when you read medical textbooks...

    Experts said the world is flat

    Experts said that man would never fly

    Experts said we'd never go to the moon

     

    Name me one of those "experts"...

     

    History never remembers the name of experts; just the innovators who had the guts to challenge and prove the "experts" wrong

    JMac11


      Cool story bro.

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      Next Race: Brooklyn Half (5/18/19) 

      ilanarama


      Pace Prophet

        Can you put that picture in spatial context?

        PRs: 10 1:12:59 (4/2014) 13.1 1:35:55 (10/2013) 26.2 3:23:31 (12/2013)

        bloggy stuff at http://ilanarama.dreamwidth.org

        sport jester


        Biomimeticist

          The Calcaneus is the heel bone in 3-D and the foot would be from the perspective of being the right ankle. Visually, it's as if it were on the right side of your computer from a slight behind perspective.

           

          The "V" shape of the bone, is the wedge that pushes the Fibula outward as you lean forward. The tip of that triangle shape is the back of the heel, so with maximum downward foot flexation, eliminates an bone friction. The widest point would have the most outward force at maximum forward lean to split apart the two bones of the lower leg.

          Experts said the world is flat

          Experts said that man would never fly

          Experts said we'd never go to the moon

           

          Name me one of those "experts"...

           

          History never remembers the name of experts; just the innovators who had the guts to challenge and prove the "experts" wrong


          runktrun

            Are you referring to the  thing labeled os trigonum as the wedge that pushes the fibula?

            Not running for my health, but in spite of it.

            tom1961


            Old , Ugly and slow

              In over 25000 miles I never got a shin splint.

              so does that mean my form is correct?

              first race sept 1977 last race sept 2007

               

              2019  goals   1000  miles  , 190 pounds , deadlift 400 touch my toes

              JMac11


                In over 25000 miles I never got a shin splint.

                so does that mean my form is correct?

                 

                Maybe you lean so far forward you've broken the physics of it.

                5K: 17:51 (5/18)  |  10K: 35:59 (3/19)  |  HM: 1:16:21 (3/19)  |  FM: 2:44:43 (4/19) 

                 

                Next Race: Brooklyn Half (5/18/19) 

                mgerwn


                Hold the Mayo

                  Where is the fibula in that picture?

                   

                  And if I'm reading what you wrote correctly, you're saying that the fibula is the bone being pushed out - so does that mean that all shin splint damage, and the resultant pain, is located in the fibula?

                  sport jester


                  Biomimeticist

                    In over 25000 miles I never got a shin splint.

                    so does that mean my form is correct?

                     

                    No it just means that the angle of the foot and lower leg is within its natural range of motion.

                    Experts said the world is flat

                    Experts said that man would never fly

                    Experts said we'd never go to the moon

                     

                    Name me one of those "experts"...

                     

                    History never remembers the name of experts; just the innovators who had the guts to challenge and prove the "experts" wrong

                    sport jester


                    Biomimeticist

                      Are you referring to the  thing labeled os trigonum as the wedge that pushes the fibula?

                       

                      I call the bone the motorcycle gas tank of your foot...

                       

                      The OS, stabilizes the bone, but no impact in separation of the two lower leg bones. That's determined by pronation of foot.

                       

                      The widest point of the bone, which is the front surface of the structure is what drives the two bones apart as you lean forward.

                      Experts said the world is flat

                      Experts said that man would never fly

                      Experts said we'd never go to the moon

                       

                      Name me one of those "experts"...

                       

                      History never remembers the name of experts; just the innovators who had the guts to challenge and prove the "experts" wrong


                      runktrun

                        The os trigonum is an accessory bone found in only about 10% of the population.

                        Not running for my health, but in spite of it.

                          I'm going to sit this right here:

                           

                           Sometimes chronic exertional compartment syndrome is mistaken for shinsplints, a more common cause of leg pain in young people who do a lot of vigorous weight-bearing activity, such as running.

                           

                          Most coaches know this. At least the ones who actually work with people instead of the internet.

                          55-59 age group  -  University of Oregon alumni  -  Irreverent and Annoying

                          sport jester


                          Biomimeticist

                            Did I mention compartment syndrome????

                             

                            Since you brought up the topic, that's a whole different story. Especially since internet idiots have no clue to the connection...

                             

                            Misuse of any limb structure will have consequences. overdevelopment of muscles within the lower leg is a direct byproduct of improper running form. How could you think otherwise?

                             

                            If you know how to run, you won't experience the problem.

                             

                            Which is why the elite runners are heel strike in landing and not forefoot or midfoot as the running/barf industry teaches.  The lower leg plays no dominant role in landing or push off mechanics. In midfoot or forefoot landing, the strength to keep the heel off the ground through every stride is what overdevelops the muscles in the lower leg to compensate.

                             

                            Overdevelopment of muscles between two bones is a direct byproduct of stresses to the foot which it isn't designed to bear.  Hence the loss of blood flow and associated pains....

                             

                            DUUUUUUHHHHHHHHHH...

                             

                            Oh by the way, follow up yet???

                            Experts said the world is flat

                            Experts said that man would never fly

                            Experts said we'd never go to the moon

                             

                            Name me one of those "experts"...

                             

                            History never remembers the name of experts; just the innovators who had the guts to challenge and prove the "experts" wrong

                            Ben Obert


                              Welp pitiful imbeciles, the great Deity sportjester has come to save your feeble minds from the wet paper bag you are so pathetically ensnared in.

                               

                              Sing with me, "sportjester is awesome, sportjester is majestic, there is no one in sportjester's intellectual stratosphere. sportjester's IQ is my zip code. sportjester invented and perfected every sport known to man, in addition to some yet undiscovered by mankind. sportjester is my life."

                               


                              I'm out of ideas

                                Did I mention compartment syndrome????

                                 

                                Since you brought up the topic, that's a whole different story. Especially since internet idiots have no clue to the connection...

                                 

                                Misuse of any limb structure will have consequences. overdevelopment of muscles within the lower leg is a direct byproduct of improper running form. How could you think otherwise?

                                 

                                If you know how to run, you won't experience the problem.

                                 

                                Which is why the elite runners are heel strike in landing and not forefoot or midfoot as the running/barf industry teaches.  The lower leg plays no dominant role in landing or push off mechanics. In midfoot or forefoot landing, the strength to keep the heel off the ground through every stride is what overdevelops the muscles in the lower leg to compensate.

                                 

                                 

                                Tell that to Mary Decker Slaney.

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