Forums >Racing>Everyone has a perfect pace?

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Everyone has a perfect pace? (Read 765 times)

JDF


Non-Stroller-Still Crazy

    posted: 3/29/2009 at 8:21 PM
    What do you all make of this? Everyone has a perfect pace? http://news.yahoo.com/s/livescience/perfectrunningpacerevealed
    Joe.


    jfa

      posted: 3/29/2009 at 8:31 PM
      8.3 mph?!?! Shoot, I have a long way to go!! Cry

       

       

       

       

       

       

      Trent


      Good Bad & The Monkey

        posted: 3/29/2009 at 8:38 PM
        modified: 3/29/2009 at 8:40 PM
        It was assumed that you would require the same total energy to run one mile, no matter if you ran it in 5 minutes or 10 minutes. Even though your energy burn rate would be higher at faster speeds, you would get there in half the time. Turns out, however, that each person has an optimal running pace that uses the least amount of oxygen to cover a given distance.
        Energy burn rate ≠ Oxygen consumption rate. These correlate, but are not the same thing.
        Jeff


        Why is it sideways?

          posted: 3/29/2009 at 8:48 PM
          modified: 3/29/2009 at 8:49 PM
          Quote from Trent on 3/29/2009 at 8:38 PM:
          Energy burn rate ≠ Oxygen consumption rate. These correlate, but are not the same thing.
          Are you saying that the results of the study--that everyone has an optimal pace at which to run in terms of energy burn--are wrong or that these results are poorly expressed? And how could you come to either of these conclusions so rapidly based on a yahoo summary of the study? Also, is there a more direct way to measure energy burnt than oxygen consumption?
          Trent


          Good Bad & The Monkey

            posted: 3/29/2009 at 8:59 PM
            modified: 3/29/2009 at 9:01 PM
            The study results are fine, although they actually show that you burn FEWER (not more) calories per unit of distance as you get faster, up to a point, and that the effect size is pretty danged small (which I have long pointed out). I am pointing out that the yahoo article is incorrect (or, at least, ambiguous). The article itself is fine. I read the original article. I have a copy if you'd like it. Yes, measure CO2 output. MTA: Or, as a response to your trolling: http://www.runningahead.com/forums/post/cbc52a124cc348adb897dfa7de68702c#focus Smile
            Jeff


            Why is it sideways?

              posted: 3/29/2009 at 9:03 PM
              My questions were only half-trolling. Thanks for the responses.
              JDF


              Non-Stroller-Still Crazy

                posted: 3/29/2009 at 9:35 PM
                My question is what happens at Anaerobic levels or beyond? Do you start becoming very inefficient when you get near your max heart rate?
                Hobbyjogger


                  posted: 3/29/2009 at 9:39 PM
                  I know I'm one of many endurance runners who spends a lot of time working on stride efficiency over a very wide range of paces. I remember when slower paces used to feel awkward. They feel less so now. So I'd wonder if a lot of it is just an unintentional training effect: you're really good at what you do more often. I also wonder if runners who'd really trained to be smooth running 13 m/mi along with 7 or 8 m/mi might exhibit a much shallower curve.
                  Trent


                  Good Bad & The Monkey

                    posted: 3/29/2009 at 9:40 PM
                    Quote from JDF on 3/29/2009 at 9:35 PM:
                    My question is what happens at Anaerobic levels or beyond? Do you start becoming very inefficient when you get near your max heart rate?
                    Yeah, as posted in the other thread, you have a point of maximal efficiency. Faster or slower than that and you become inefficient:
                    T-Bone


                    Puttin' on the foil

                      posted: 3/29/2009 at 10:10 PM
                      Those are some neat drawings...

                      Don't be obsessed with your desires Danny. The Zen philosopher Basha once wrote, 'A flute with no holes, is not a flute. A donut with no hole, is a Danish.'

                      JDF


                      Non-Stroller-Still Crazy

                        posted: 3/30/2009 at 8:37 AM
                        Quote from Trent on 3/29/2009 at 9:40 PM:
                        Yeah, as posted in the other thread, you have a point of maximal efficiency. Faster or slower than that and you become inefficient:
                        How are calories per KM measured there? Is there an accurate way to measure “actual” calories burned?
                        Trent


                        Good Bad & The Monkey

                          posted: 3/30/2009 at 8:44 AM
                          The calorie burn rates are calculated from O2 intake and CO2 output, presumably using standard metabolic testing methods. That is nearly the best you can do. The article, however, is not clear on this point.
                          Runs2Slow


                            posted: 3/31/2009 at 10:24 AM
                            I'm right there with you NJ. If 8.3 MPH is the average nirvana pace for a male. I'm way behind. If the average person could run this pace then they could all BQ.
                            DoppleBock


                              posted: 3/31/2009 at 11:48 AM
                              modified: 3/31/2009 at 11:50 AM
                              Quote from Trent on 3/29/2009 at 8:38 PM:
                              Energy burn rate ≠ Oxygen consumption rate. These correlate, but are not the same thing.
                              +1 Most effeceint O2 usage per mile also doen't equal the best training pace per mile.

                              Long dead ... But my stench lingers !

                               

                               

                              DoppleBock


                                posted: 3/31/2009 at 11:54 AM
                                Definition of effeciency ? If I am running 100 mile race - I would fail if I ran the pace where my body used the "Most effecient" o2 So why can I run mush farther at an "Ineffecient" pace?

                                Long dead ... But my stench lingers !

                                 

                                 

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