How to time a workout that mixes holds, reps, and rest

That works for a 30-second plank, but not for 12 push-ups, five pull-ups, or a set that should finish when your technique—not the clock—says it is done.

The usual workaround is to estimate how long every rep-based exercise will take.

That makes the timer easier to configure, but it also makes the workout rush you when a set takes longer and leave dead time when you finish early.

Use two different step types

A better structure is to treat timed and rep-based exercises as two different step types.

• A timed step advances automatically after its countdown.
• A rep-based step waits until you confirm that the prescribed reps are complete.
• Rest starts only after the current step actually finishes.
• Sets and circuits repeat independently of the individual exercise type.

A mixed circuit example

1. Plank — 30 seconds.
2. Push-ups — 12 reps.
3. Kettlebell swings — 15 reps.
4. Rest — 45 seconds.
5. Repeat the circuit three times.

The timed hold stays precise, while the strength movements adapt to your real pace.

You also avoid switching between a timer, a notes app, and your memory just to track the next transition.

What to check before choosing a timer

• Can timed and rep-based steps exist in the same saved workout?
• Can a rep-based step wait for manual completion instead of guessing a duration?
• Can a complete set repeat with its own rest period?
• Will audio cues or notifications continue if the phone is locked or another app is open?

Run the whole structure in ProWorkout

ProWorkout: Interval Timer was built around this mixed-workout structure for iPhone and iPad.

It supports timed and rep-based exercises in one routine, repeating sets, rests, warm-up and cool-down sections, background cues, and workout sharing by link.