Review Impact of Exercise to Treat Postural Orthostatic Tachycardia Syndrome: A Systematic Review, 2025, Cortez et al

Discussion in ''Conditions related to ME/CFS' news and research' started by forestglip, Mar 7, 2025.

  1. forestglip

    forestglip Senior Member (Voting Rights)

    Messages:
    2,094
    Impact of Exercise to Treat Postural Orthostatic Tachycardia Syndrome: A Systematic Review

    Melissa M Cortez, Kayla Aikins, Amy C Arnold, Jeffrey R Boris, Todd E Davenport, Katie Johnson, Hagar S Kattaya, Laurence Kinsella, Mary M McFarland, Ryan Pelo, Clayton D Powers, Kelsi Schiltz, Lauren E. Stiles, Lauren Ziaks, Tae Hwan Chung, Claudia DalMolin

    Background
    Postural orthostatic tachycardia syndrome (POTS) is a chronic condition associated with a high symptom burden and decreased quality of life (QOL). Exercise is currently considered to be a first line non-pharmacological treatment for POTS. The purpose of this systematic review was to evaluate the impact of exercise on cardiovascular and patient-centered outcomes in patients with POTS.

    Purpose
    To evaluate whether exercise benefits patients with POTS by synthesizing data from published clinical studies.

    Methods
    Electronic databases, including Medline, Embase, CINAHL Complete, Cochrane CENTRAL, and others were searched and results were exported on May 2, 2023. Study inclusion: those that utilized an exercise program as an intervention for POTS and were conducted as experimental or quasi-experimental design.

    Exclusions
    Non-English language papers and opinion-based/theoretical/non-empirical studies/case reports. Data extraction was based on Cochrane Handbook guidance and summarized according to Synthesis Without Meta-analysis (SWiM) guidelines; methodological quality and risk of bias was evaluated using the JBI Critical Appraisal tools. Standardized effects were calculated and summarized based on the direction of effect.

    Results
    Seven studies included in the final review are described in the data summary and synthesis. Improvements in heart rate were reported across all studies reviewed, while stroke volume and QOL improvements were also found. Notably, not all studies reported on the latter two outcomes. Methodological variability across studies precluded meta-analysis, and risk of bias was considered moderate-high in all but a single study.

    Link (Frontiers in Neurology) [Provisionally accepted, only abstract right now)
     
    Sean, Peter Trewhitt, Hutan and 3 others like this.
  2. rvallee

    rvallee Senior Member (Voting Rights)

    Messages:
    14,568
    Location:
    Canada
    Very strong feel of Theranos 'showing' that their machines work by testing behind closed doors and bringing you the results. You can trust them. Why would they just fake them? Other than having promised for literally decades that this works.

    Are the exams to work in this industry open book and time-unlimited, too? Done in teams with the answer sheet? Then self-graded? Why even bother with this process when you can simply report an opinion as fact? Just skip all the theater, then.
     
    Yann04, Steppinup, alktipping and 3 others like this.
  3. Utsikt

    Utsikt Senior Member (Voting Rights)

    Messages:
    2,524
    Location:
    Norway
    Yet we’re going to use exercise as the first line treatment!
     
  4. Dolphin

    Dolphin Senior Member (Voting Rights)

    Messages:
    6,372
  5. Utsikt

    Utsikt Senior Member (Voting Rights)

    Messages:
    2,524
    Location:
    Norway
    I struggle to understand how this sentence is supported by the evidence. If pretty much all of the studies have a substantial risk of bias they do not support anything. The evidence is inconclusive.
     
    Last edited: Apr 24, 2025 at 5:10 PM
    bobbler, Sean, Steppinup and 4 others like this.
  6. rvallee

    rvallee Senior Member (Voting Rights)

    Messages:
    14,568
    Location:
    Canada
    In a sane system, this would be the only acceptable conclusion.

    Hence...
     
    bobbler, Yann04, Steppinup and 3 others like this.
  7. SNT Gatchaman

    SNT Gatchaman Senior Member (Voting Rights) Staff Member

    Messages:
    6,688
    Location:
    Aotearoa New Zealand
     
    Steppinup, rvallee, bobbler and 3 others like this.
  8. Sean

    Sean Moderator Staff Member

    Messages:
    8,870
    Location:
    Australia
    after exertion lasting days to weeks.

    More like as little as minutes.
     
  9. Utsikt

    Utsikt Senior Member (Voting Rights)

    Messages:
    2,524
    Location:
    Norway
    I think «lasting» is connected to the symptoms earlier in the sentence and not the exertion. They could have used a comma or two to make it clearer.
     
    NelliePledge, bobbler, Sean and 3 others like this.
  10. PrairieLights

    PrairieLights Senior Member (Voting Rights)

    Messages:
    306
    I have heard accounts from people with POTS (not seeming to have known comorbidities) that increasing exercise did help them but it was a long process. From what I understood from them was they also increased other things too such as salt intake and some took medications to help in that area.
     
    Mij, bobbler, Trish and 1 other person like this.
  11. Sean

    Sean Moderator Staff Member

    Messages:
    8,870
    Location:
    Australia
    Adding a comma makes a lot more sense.

    ...and can result in a worsening of a constellation of symptoms, leading to extreme fatigue, cognitive impairment and flu-like symptoms within hours or days after exertion, lasting days to weeks.
     

Share This Page