Every set you log is one of four types: Normal, Warm-up, Failure or Drop. Normal is the default and covers almost everything you do. The other three are labels for sets that were not ordinary working sets, and only one of them, the warm-up, changes any number NOYU shows you afterwards.
To change one, open Set type from the set number on the left of the row. The same panel is where you delete a set.
What each type means
A warm-up is preparation. Lighter, easier, done to get ready rather than to make progress. NOYU marks these with a W instead of a number, so your working sets always count from 1 however many warm-ups you did first.
A normal set is a working set at the load you meant to lift. If you are not sure which type a set was, it was almost certainly this one.
A failure set is one taken to the point where another repetition was not possible. Record only the repetitions you actually completed. If you managed none at all, leave the set incomplete and add a note rather than logging a repetition that did not happen.
A drop set follows straight on from the set before it at a lighter load, with little or no rest between the two. Log it as its own set at the weight you dropped to.
Warm-ups and your numbers
Failure and drop sets are counted exactly like normal sets. They are labels for how the set felt and what you did, not adjustments to your totals.
Warm-ups are the exception, and they behave differently in two places.
For the totals you see on the session, warm-ups are left out by default, from both the set count and the volume figure. Volume is meant to be how much work you did, and a warm-up is preparation for the work rather than the work itself. It is one switch covering both figures, so the two can never disagree, and you can turn it on in your strength settings if you would rather see everything you lifted.
For progression, warm-ups are never counted. When NOYU looks at whether you are moving forward on an exercise, it reads your working sets and working repetitions only, regardless of that setting. A heavier warm-up week will not read as progress.
This is why the type is worth setting on the day. A warm-up left as a normal set inflates the working-set history NOYU compares against next time.
