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"persistent fatigue may be ... result of individual reaching or exceeding their lactate threshold"

Discussion in 'Other Health News and Research' started by Dolphin, Oct 3, 2012.

  1. Dolphin

    Dolphin Senior Member

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    I can't see the full text of this. But I happened to see this bit, which I thought was interesting to see explicitly written:


    I'm not particularly excited by their interpretation i.e. just because there is higher lactate levels, doesn't mean it can easily be treated with exercise:


  2. Snow Leopard

    Snow Leopard Senior Member

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    Australia
    I think the lower threshold is associated with fatigue, but is not the cause of the sensation of fatigue. Nor will muscular conditioning improve the fatigue (though it may improve the lactate threshold).
  3. alex3619

    alex3619 Senior Member

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    Logan, Queensland, Australia
    A key point in ME, though needing more research even now, is that many of us have critical lowering of lactate threshold as a result of PEM/PENE. This is a hallmark of ME I suspect. So if we exercise too much, then we damage our lactate threshold, we dont increase it. This is why Pacific Fatigue Labs emphasizes anaerobic conditioning in ME/CFS. We need more exercise physiologists to grapple with this.

    Lactate does not in itself cause major problems in the short term, though it can if prolonged (e.g. lactic acidosis which can be fatal). Its more a sign that there is a switch in metabolism, and many many factors occur in that switch.

    Bye, Alex
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  4. Mark

    Mark Acting CEO

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    I recently met someone who told me she was now pretty much recovered from a fibromyalgia diagnosis. I asked her for some details, and what jumped out for me was that she had also had a diagnosed lactic acidosis problem, related to pain in one leg following an accident (I didn't get all the details on that so may have misunderstood that slightly perhaps). The leg problem was eventually dealt with, just before the remission of fibromyalgia symptoms (I can't recall how, I think she described something like physio which had 'unblocked' something in her hip). She didn't attribute her recovery from FM to the treatment of the problem with her leg (though that seemed quite likely to me and she admitted that explanation fitted well in terms of her time of onset and remission), but the take-home for me was that it seemed likely to me that lactic acidosis was the underlying cause of her fibro diagnosis. I guess that lactic acidosis can also be one of many downstream effects rather than an underlying cause as it seemed to be in this case, and many of the symptoms would be similar in both situations.
    Dolphin likes this.

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