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How we work

Last updated 8 November 2026

Everything we publish about training and nutrition on this site, and the rules inside the app, come from one team that signs its work as Muscla Editorial. This page says how that work is done, so you can hold us to it.

The sources rule

  • Every claim has a source. A statement about training, food or health either links to the study it rests on, or it is a plain description of how the app behaves.
  • We check that each study exists. Before a study is cited we look it up in PubMed or Crossref and confirm that the title, authors, year and DOI match. A reference we cannot verify is not used.
  • We prefer meta-analyses and position stands over single studies, and single studies over opinion. Where the evidence is mixed or the effect is small, we say so instead of rounding it up.
  • We read the study, not only the abstract. Numbers in our text are the numbers of the paper.
  • The app’s rules are written down with their sources. For example, training each muscle twice a week is based on a meta-analysis by Schoenfeld, Ogborn and Krieger (2016), and the progression method follows the ACSM position stand of 2009. The app uses fixed rules, not AI, to build plans and to choose weights.
  • No medical claims. Muscla is not medical advice. We write about training and nutrition for healthy adults and say so where it matters.

Keeping pages up to date

  • Every article shows the date it was last updated.
  • When a new meta-analysis or position stand changes what we say, we update the page and the date. When we only fix a typo, the date stays.
  • Pages are re-checked against their sources at least once a year.
  • If we change a rule in the app because of new evidence, the page that explains the rule changes in the same release.

Corrections

We get things wrong sometimes. If you find an error, a study that does not say what we say it does, or a source that has been retracted, write to review@muscla.app. Tell us the page and what you found. We check it against the source, fix it and update the date. If we decide not to change something, we tell you why.

Who writes

Muscla Editorial is the team at AlbaScout L.L.C.. We do not publish anonymous content under a made-up expert name, and we do not publish paid reviews. More about us is on the About page.