Your timer says sixty seconds, but the next set falls apart. The useful question is not whether you waited long enough to satisfy an app. It is whether you can perform the work your programme intended.

A demanding squat and a small isolation exercise do not necessarily need the same pause. Start with your programme, then consider the load, effort and whether your technique and planned repetitions remain achievable.

Imagine the same weight produces ten, six and four repetitions with rushed rests. A longer pause might help preserve performance. Those numbers are an example, not proof that rest is the only thing needing adjustment.

Research does not establish one perfect rest time for everybody. A review suggests some benefit from avoiding very short rests for muscle growth, with uncertainty. A small trial also favoured three minutes over one for several outcomes.

Use the same exercise and load when testing a modest change to rest. Log the actual pause and repetitions. Check sleep, heat, illness and workload too. Do not keep adding time to explain away pain or dizziness.

If time is limited, choose a manageable exercise list. Protect the quality of priority sets instead of rushing every pause. The full guide shows how to review a timer setting and when another part of the plan needs attention.