Beginners and Beyond

Amateur marathon runners are slowing down.......(Wall Street Journal).... (Read 197 times)

kristin10185


Skirt Runner

    .....and now I have that dumb song in my head. THANKS! I hate you. LOL

    PRs:   5K- 28:16 (5/5/13)      10K- 1:00:13 (10/27/13)    4M- 41:43 (9/7/13)   15K- 1:34:25  (8/17/13)    10M- 1:56:30 (4/6/14)     HM- 2:20:16 (4/13/14)     Full- 5:55:33 (11/1/15)

     

    I started a blog about running :) Check it out if you care to

    redrum


    Caretaker/Overlook Hotel

      And I just gotta say this cuz I thought I saw it yesterday but wasn't sure & now that I've looked at it, it looks to be true......

       

      More replies than views???   LMAO!!

       

      Of course we've had the regular infiltration of folks to pick on the regulars here & some cross-posting of the L & O hybrids dabbling in the toe touches, etc. but still, that's pretty funny.

       

      Summary ------>  We're all a bunch of:

       

      FAT

      SLOW

      UNINSPIRED

      SHELTERED

      CHAUVENISTIC

      DESPERATE FOR ATTENTION

      WHINY

      SEXUALLY FRUSTRATED

      DRUNK

      VERY DRUNK

      SOMEWHAT DRUNK

      & JUST PLAIN DRUNK

       

      PIGS!!

       

       Randy

      aponi


      never runs the tangents

         

        Damn.  That's the runner's version of getting Rickrolled.

         

        I'm going to save the link to that now just for this purpose.

        “Do what I do. Hold tight and pretend it’s a plan!” Doctor Who


        No more marathons

          OK, time to weigh in here (pun intended).  I've read many of the posts, but not all, so please excuse me if I'm repeating.

          Isn't the BMI calculation about the same as the calculation of maximum heart rate using 220 minus age?  That is:  useful for the average of a large population but pretty useless for an individual?  So the real determining factor is percent body fat, which can be estimated by using the pinch calipers (or have hapylily grab the love handles) or calculated correctly using immersion in water.  And what those calculation can tell us is that two 5'10" males weighing 150 pounds would both have a bmi of 22.2 but one could have a % body fat of 20% and the other could be as low as 5%.  So BMI tells you nothing.

          I saw the point raised that regardless of the talk about BMI - the fact remains that it takes a given amount of energy to move a given amount of weight a given amount of distance.  And that by reducing the amount of weight you reduce the amount of energy required.  And while that is true, it ignores the difference in energy efficiency.  Each of us has an inherent ability to convert food into energy, and then an oxygen carrying capacity to move that energy to our muscles.  Some of us are simply better genetically predisposed to do that more efficient than others.  Think of it as the difference of driving your car 10 miles in first gear vs. 4th or 5th gear.  Much less full consumed in the latter than the former.

          Boston 2014 - a 33 year journey

          Lordy,  I hope there are tapes. 

          He's a leaker!

          Love the Half


            Glad I could be of some service re: Rickrolled.  Big grin

            Short term goal: 17:59 5K

            Mid term goal:  2:54:59 marathon

            Long term goal: To say I've been a runner half my life.  (I started running at age 45).

            RSX


              This thread will never die

              catwhoorg


              Labrat

                OK, time to weigh in here (pun intended).  I've read many of the posts, but not all, so please excuse me if I'm repeating.

                Isn't the BMI calculation about the same as the calculation of maximum heart rate using 220 minus age?  That is:  useful for the average of a large population but pretty useless for an individual?  So the real determining factor is percent body fat, which can be estimated by using the pinch calipers (or have hapylily grab the love handles) or calculated correctly using immersion in water.  And what those calculation can tell us is that two 5'10" males weighing 150 pounds would both have a bmi of 22.2 but one could have a % body fat of 20% and the other could be as low as 5%.  So BMI tells you nothing.

                I saw the point raised that regardless of the talk about BMI - the fact remains that it takes a given amount of energy to move a given amount of weight a given amount of distance.  And that by reducing the amount of weight you reduce the amount of energy required.  And while that is true, it ignores the difference in energy efficiency.  Each of us has an inherent ability to convert food into energy, and then an oxygen carrying capacity to move that energy to our muscles.  Some of us are simply better genetically predisposed to do that more efficient than others.  Think of it as the difference of driving your car 10 miles in first gear vs. 4th or 5th gear.  Much less full consumed in the latter than the former.

                 

                Water immersion (or those fancy pods which do the same with air pressure) still doesn't give you a correct answer.

                It gives a body density. Which is a combination of 'normal tissue' fat tissue and bones, each of which has its own density.

                 

                With 3 unknowns (the proportions) and only two knowns (weight and density), the water immersion technique has to make an assumption about the bone mass. Which makes a significant difference in the numbers from someone who is small framed versus large framed.

                 

                DEXA is the only way to get a 'right' answer.

                5K  20:23  (Vdot 48.7)   9/9/17

                10K  44:06  (Vdot 46.3)  3/11/17

                HM 1:33:48 (Vdot 48.6) 11/11/17

                FM 4:13:43 (Vdot 35.4) 3/4/18