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  • Mike

    What about at threshold power? From personal experience, my heart rate fell by 3-4 bpm consistently for equivalent points in the power curve up to Z3/4 when I started wearing cycling orthotics. I wouldn’t have said my sprint power changed at all though. It would be interesting to do a similar study at FTP.

  • antoine

    Yes it does after some time.

    I had knee pain and muscles imbalance in my legs. I have high arches and leg lengtn discrepancy.

    I have been using wedges , foot orthoses and shims for a while , the pain has disapeared and the weak muscles are going stronger.
    So I’m gaining more power because both legs are working well.

    • winkybiker

      Yes. That’s what my comment above is saying.

  • Lyre_bird

    Thanks for the article.

    I wear orthoses for running and XC skiing but have never found them useful for cycling.

    Now I know why.

  • winkybiker

    Surely this test is missing the point. The benefits of proper foot alignment and other aspects of correct bike fit aren’t that they improve power and efficiency directly, but rather that they allow for more (and/or higher intensity) training without injury and discomfort. It is the additional training that improves performance.

    • Superpilot

      No, it tested the point you say they have missed. By assessing the insoles directly, they can conclude that the insoles do not create an increase in power output, or increase comfort immediately.

      Whether the cyclist is comfortable or misaligned, as you say it is the increased training that improves the outright power/performance, not the insoles directly and instantaneously. If anything, the study is agreeing with you :)

      • winkybiker

        I think we violently agree. They have tested the “point” regarding intantaneous benefits, and found it wanting. I guess I was thinking of the real point of better shoe/bike fit that this study didn’t cover. Did they “miss” it or was it never the intent? Likely the latter. I was perhaps being harsh when I said they “missed the point”.

  • mark conley

    A general post on foot orthoses. Many posters on this and earlier threads have stated that ‘orthotics’ (which is incorrect, as orthotic is an adjective, as in orthotic therapy or orthotic device, whereas ‘foot orthoses’ or simply ‘orthoses’ is the correct term) don’t work. The evidence shows that there, “is no or a very weak relationship of injury to excessive foot pronation” and that, “foot orthoses don’t alter the pattern of the kinematics (motions) of the rearfoot” but do effect the kinetics (forces / moments) of the rearfoot (Payne C) .


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