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A pragmatic randomised trial of stretching before and after physical activity to prevent injury and soreness
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  • Published on:
    Response to Ian Shrier
    • Robert D. Herbert, Senior Research Fellow
    • Other Contributors:
      • Gro Jamtvedt, Signe Flottorp, Jan Odgaard-Jensen, Kari H?velsrud, Alex Barratt, Erin Mathieu, Amanda Burls, Andrew D. Oxman

    We agree with Ian Shrier that the finding of an effect of stretching on risk of muscle, ligament and tendon injuries should be interpreted with caution. That is why we wrote "The finding of an effect of stretching on muscle, ligament and tendon injury risk needs to be considered cautiously because muscle, ligament and tendon injury risk was a secondary outcome, and there was no evidence of an effect of stretching on the p...

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    Conflict of Interest:
    None declared.
  • Published on:
    Re: Stretching before and after exercise

    Editor,

    I recently read the article Jamtvedt et al on whether pre and post stretching prevents injury 1 with interest. I commend the authors for their well-conducted study and would like to comment on two particular issues.

    First, the authors correctly point out that there was no difference in the primary outcome of all injuries, and that the analysis showing an absolute 22% reduction in muscle, ligament a...

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    Conflict of Interest:
    None declared.
  • Published on:
    No discrepancy between protocol and trial report
    • Gro Jamtvedt, executive director
    • Other Contributors:
      • Robert D Herbert, Signe Flottorp, Jan Odgaard-Jensen, Kari H�velsrud, Alex Barratt, Erin Mathieu, Amanda Burls, Andrew D Oxman

    We thank Professor Thornton for raising these issues and are grateful for the opportunity to clarify details of the trial protocol and analysis.

    There is, in fact, no discrepancy between the description of outcomes in the trial protocol published on the trial web site, the protocol that was registered on the Australian New Zealand Clinical Trials Registry, and the report published in the British Journal of Sports...

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    Conflict of Interest:
    None declared.
  • Published on:
    Discrepancies between protocol and trial report

    Dear Editor

    This is likely to be the definitive trial on the effectiveness of pre-exercise stretching for some time, so it is important that it is carefully reported and analysed. I have a few questions.

    It is stated that “two primary outcomes and 12 secondary outcomes were specified a priori in the analysis plan” but only the two primary outcomes and five secondary outcomes appear in the paper. Four secondary...

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    Conflict of Interest:
    None declared.