How these pages are written
Every guide on Diastra Learn answers one question a runner asks, in plain words, and links every number to the published study it came from. A page changes when the research changes, and the date at the top says when it last did.
Who writes them
The Diastra team writes and edits every guide. Diastra is a heart rate training app for iPhone and Apple Watch, built for runners who want to know whether their training is working.
How a number gets on the page
Each number on a guide comes from one of two places. The first is a published study, and the study is linked in the sources at the bottom of the page. The second is the math the page itself runs, like the bands the calculator draws from your age, which uses the same formulas as the Diastra app.
Before a guide goes up, every source is opened and read to check three things. The study exists, the authors and year are right, and it says what the sentence says. A source that fails any of the three is taken out.
What the guides do not do
The guides explain training. They do not give medical advice, and they never name a condition or tell you what a number means for your health. Diastra is a general wellness product. It does not diagnose, treat, or prevent any condition. Check with a doctor before you start something new. Stop if you feel unwell.
When a page changes
Research moves. When a new study changes an answer, the page is rewritten and the date at the top moves with it. A date only changes when the words do.
How Diastra fits in
Diastra appears near the end of a guide, after the answer. It reads every workout your Apple Watch saved, finds your max heart rate from your own workouts and draws your bands from it. The guides are written to be useful whether or not you ever use the app.
Something wrong?
If a page gets a study wrong, write to support@diastra.app with the page and the study. A correction is made and dated.