Autor/es reacciones

Miguel del Valle Soto

Professor at the Faculty of Medicine of the University of Oviedo, chair of the Health and Safety Committee at the same university, where he is responsible for REUPS and One Health, and former president of the Spanish Society of Sports Medicine

In my opinion, the article has significant shortcomings:

  • Firstly, the reasons for excluding 734 articles are not clarified.
  • The methodology for monitoring the physical activity levels of the cases included is not precise; many models are mixed together. Overall, the various publications included have many variables, making it very difficult to standardize.
  • It is striking that they find no differences between any of the groups, which contrasts with a multitude of publications.
  • I cannot find the comparison between cis men and women. According to the methodology of this systematic review, they would probably not have found any differences either.
  • This publication mixes very different populations (trained-untrained...) and, considering the importance of training in the use of hormones to improve performance, this strongly biases the publication.
  • Different levels of physical condition, different hormone treatments, etc. have also been mixed.
  • Finally, in sports performance, as everyone knows, small (insignificant) differences can make a big difference in scores and rankings, so from a practical point of view, the fact that the differences are not significant is a secondary issue and this should be reflected in the article because, as published, it raises many doubts about whether trans women can have advantages over cis women. In this publication, it seems that there are no significant differences between anything, but the reasons for the non-significance are neither discussed nor analyzed.
    EN