# Rest between sets: how long, and why it changes by lift

> Rest 180 seconds on heavy compounds, 120 on secondary lifts, 90 on isolation work. Longer rest builds more muscle, not less.

**Source:** https://trycompound.cc/blog/rest-between-sets/  
**Author:** Scott Shumaker, maker of Compound  
**Published:** 2026-08-09  
**Topic:** Training (rest, programming, hypertrophy, strength)

## In short

Rest 180 seconds after heavy compounds like the deadlift, back squat, and bench press, 120 seconds after secondary lifts like the overhead press and leg press, and 90 seconds after isolation work like curls and lateral raises. The old bodybuilding idea that short rest builds more muscle through metabolic stress does not hold up under controlled testing: a 2016 trial found that resistance-trained men who rested 3 minutes between sets gained more strength and more muscle thickness over 8 weeks than a group that rested 1 minute, because the longer rest let them lift more total weight across their sets.

- Rest 180 seconds on heavy compounds, 120 on secondary lifts, 90 on isolation work. One global timer is the wrong tool.
- A 2016 trial found 3-minute rest beat 1-minute rest for both strength and muscle thickness gains over 8 weeks in trained men.
- Compound's default REST LENGTH setting is NORMAL, which rests two-thirds of the tier: 120 seconds instead of 180, 80 instead of 120, 60 instead of 90.
- A push day's 21 working sets cost about 27 minutes of pure rest at the default setting, versus roughly 40 minutes at full rest or 20 minutes on SHORT.
- The RKC plank rests 30 seconds and the four neck holds rest 0, because a braced isometric hold does not tax the nervous system the way a heavy set does.

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Three minutes on heavy compounds, two minutes on secondary lifts, ninety seconds on
isolation work. Rest is either the recovery a heavy lift needs to hit its next set at
the same weight, or minutes added to a workout for no reason, and most lifters have the
reasoning behind it backwards.

## How long should you rest between sets?

Rest 180 seconds after heavy compound lifts, 120 seconds after secondary compound
lifts, and 90 seconds after isolation work. Those three numbers cover almost every set
in a typical program. Heavy compounds are lifts like the deadlift, the back squat, and
the bench press, where you are moving the most weight your body can handle for a low
rep count and a missed rep usually means the set was cut short by fatigue rather than
technique. Secondary compounds, like the overhead press or the leg press, load a
smaller muscle mass or a more stable position and can recover faster. Isolation work,
like curls or lateral raises, asks a single joint and a small muscle to do the work and
rarely needs more than 90 seconds.

This is the opposite of old bodybuilding convention, which had short rest for muscle
and long rest for strength. The evidence runs the other way.

## Does resting longer between sets build more muscle?

Yes, and the mechanism is not the one most people were taught. For decades the
convention was that short rest, around a minute, builds more muscle than long rest
because it produces more metabolic stress: the burn, the pump, the buildup of
byproducts in the muscle during a short-rest set. The idea was that discomfort itself
was doing the work.

A 2016 trial tested this directly. Twenty-one young, resistance-trained men were split
into two groups and ran the same 8-week program: three full-body sessions a week, three
sets of 8 to 12 reps across seven exercises, everything held constant except rest.
One group rested 1 minute between sets, the other rested 3 minutes. At the end of 8
weeks, the 3-minute group had gained significantly more strength in both the squat and
the bench press, and significantly more muscle thickness in the front of the thigh,
measured by ultrasound. Whatever metabolic stress the short rest produced did not show
up as more growth. The longer rest won on the outcomes that were actually measured.

A 2017 systematic review looking across the available trials found the picture is not
unanimous. Several studies show no difference between short and long rest, and the
review's own conclusion is that both can work. But it also notes that the newer
studies, the ones using trained lifters and more sensitive measurement, lean toward an
advantage for longer rest, and that is a meaningful qualifier: the case for short rest
comes mostly from older or less sensitive work.

The likely reason longer rest wins when it wins is volume, not comfort. Resting longer
lets you walk into the next set closer to fully recovered, which means you can hit the
same weight for the same reps set after set instead of the load or the reps quietly
dropping as the session goes on. A separate meta-analysis of resistance training volume
found a graded relationship between how many sets a muscle gets and how much it grows.
More sets completed at your working weight is more total training volume, and training
volume is one of the more reliably measured drivers of hypertrophy in the literature.
Short rest that forces your third set to be lighter than your first is short rest that
quietly cuts your volume, even though it feels harder in the moment.

None of this makes a single trial the final word. It is 21 men over 8 weeks, and it
measured strength and muscle thickness, not every possible outcome. But it is a
controlled, direct test of the exact question, and it points away from the assumption
that short rest is the better choice for building muscle.

## Why does rest length depend on the exercise?

Because the same rest number is wrong for most of the exercises in a session. A
three-minute rest after a lateral raise is time nobody needs and nobody wants to sit
through. A ninety-second rest after a heavy deadlift is not recovery, it is a missed
rep. Compound assigns a rest tier to every exercise in the plan rather than running one
global timer, and the tiers track how demanding the lift actually is.

| Tier | Rest | Used for |
|---|---|---|
| Heavy | 180 s | Deadlift, Pull-Ups, Barbell Row / Seated Cable Row, Barbell Bench Press, Barbell Back Squat, Romanian Deadlift |
| Secondary | 120 s | Standing Overhead Press, Incline Dumbbell Press, Weighted Dips, Bulgarian Split Squat, Leg Press, Barbell Hip Thrust, Farmer's Carry, Suitcase Carry |
| Isolation | 90 s | Face Pulls, curls, Dumbbell Lateral Raise, Overhead Triceps Extension, Push-Up Plus, Dead Hang, the adductor and calf slots, Tibialis Raise, Hanging Leg Raise, Pallof Press, Back Extension, Band External Rotations |
| Braced hold | 30 s | RKC Plank |
| No rest | 0 s | Isometric Neck Holds, and every mobility movement |

## Why do the RKC plank and neck holds rest so little?

Because a braced isometric hold does not tax the nervous system the way a heavy set
does. The RKC plank asks you to squeeze everything hard for 30 seconds, and the rest
after it is 30 seconds too, which is long enough to stop shaking but not long enough to
cool off. It is a different kind of fatigue than a heavy squat, and it recovers on a
different clock.

The four isometric neck holds go further and rest 0 seconds between them entirely.
Front, back, left, right, run back to back with no timer in between. The reasoning is
that switching from one position to the next already takes as long as a 20-second hold
needs to reset, so a rest period would just be waiting on top of waiting.

## What is Compound's default rest setting?

NORMAL, which rests two-thirds of each exercise's full tier rather than the full
number. Compound has a REST LENGTH setting with three values: LONG rests the tier in
full, NORMAL rests two-thirds of it, and SHORT rests half. Out of the box, on NORMAL, a
180-second tier actually rests 120 seconds, a 120-second tier rests 80, and a
90-second tier rests 60.

| Setting | Heavy (180 s) | Secondary (120 s) | Isolation (90 s) | Braced hold (30 s) |
|---|---|---|---|---|
| LONG | 180 s | 120 s | 90 s | 30 s |
| NORMAL (default) | 120 s | 80 s | 60 s | 20 s |
| SHORT | 90 s | 60 s | 45 s | 15 s |

The scaling happens once, the moment a rest period starts, off the fixed tier written
into the plan. It never touches exercise timers: a plank hold, a stretch, or any other
countdown runs its full length no matter which rest setting is active. Only the gap
between sets gets shorter.

NORMAL is the default rather than LONG because most people train on a clock, whether
that is a lunch break, a gym that gets crowded, or just patience, and a
program that gets finished beats a program tuned to what a research trial showed was
technically optimal. Two-thirds of the full tier keeps most of the recovery benefit
while keeping the session inside the length most people will actually show up for
again next week.

## How much of a workout is rest?

Most of it, and the exact fraction depends on the setting. Take a Push day: seven
exercises, 21 working sets, running from the heavy tier down to isolation work. Summing
the rest that follows every set gives a total of about 40 minutes at LONG, 27 minutes
at the default NORMAL setting, and 20 minutes at SHORT.

| Setting | Rest across 21 sets | Approx. total session time* | Rest share |
|---|---|---|---|
| LONG | 40.5 min | ~51 min | 79% |
| NORMAL (default) | 27 min | ~38 min | 72% |
| SHORT | 20 min | ~31 min | 66% |

*Assuming roughly 30 seconds of working time per set, a reasonable rough figure for a
controlled set in the 5 to 15 rep range. Warm-up and the roughly ten minutes of
mobility after the session are not included here.

Even on SHORT, rest is the majority of the clock. That is what a rest period is for:
the muscle you just worked needs the time before it can do
the next set at the same weight, and skipping that time does not make the set easier,
it makes it worse.

## What happens if you don't time your rest at all?

It drifts, and the drift is invisible while it is happening. Self-selected rest gets
shorter when you are impatient to finish and longer when you check your phone between
sets, and it is rarely the same length twice, let alone the same length across two
sessions a week apart.

That matters more than it sounds like it should, because [double
progression](/blog/double-progression/) decides whether your weight goes up by
comparing this week's sets to last week's sets. If last week you rested 90 seconds and
this week you rested three minutes because a text came in, the sets are not really
comparable anymore. A missed rep might be about the weight, or it might just be about
the clock. Timing rest is what keeps that comparison honest.

## What Compound does about it

Compound runs a rest timer after every set, sized to the exercise's tier and scaled by
whichever REST LENGTH setting you have chosen, with no typing or guessing involved. The
timer starts the moment you log a set and counts down on its own, on the phone and on
the watch, so the session moves the same way whether you are wearing a stopwatch's
level of attention or none at all. Warm-up is covered in [what actually belongs in a
warm-up](/blog/warm-up-that-works/), and the mobility work after the session, which runs
with no rest between movements at all, in [mobility after
lifting](/blog/mobility-after-lifting/).

## Common questions

### How long should you rest between sets?

About 180 seconds after heavy compound lifts such as the deadlift, back squat, or bench press, 120 seconds after secondary lifts such as the overhead press or leg press, and 90 seconds after isolation work such as curls, lateral raises, or face pulls. Rest should scale with how demanding the set was, not sit at one fixed number for the whole workout.

### Does resting longer between sets build more muscle?

The controlled evidence points that way. A 2016 trial in resistance-trained men found that a group resting 3 minutes between sets gained significantly more strength and more muscle thickness in the front of the thigh over 8 weeks than a group resting 1 minute, with all other training variables held equal. The likely reason is that longer rest let the long-rest group lift more total weight across their sets, and training volume is what a separate dose-response meta-analysis has tied to muscle growth.

### Why does Compound use different rest times for different exercises?

Because a fixed global rest timer is wrong for almost every set in the workout. Three minutes after a lateral raise is time nobody needs. Ninety seconds after a heavy deadlift is a missed rep. Compound assigns a rest tier to every exercise in the plan so the clock matches the set that just happened, not a single number picked for the whole session.

### What is Compound's default rest setting?

NORMAL, which rests two-thirds of each exercise's full tier: 120 seconds instead of 180, 80 instead of 120, and 60 instead of 90. The LONG setting rests the full tier and SHORT rests half. NORMAL is the default because most people train on a clock, and a session you actually finish beats a session tuned to a lab result you will not stick to on a Tuesday.

### Are plank holds and stretches also scaled by the rest setting?

No. The rest setting only scales the recovery time between sets. Exercise timers themselves, such as a plank countdown or a stretch hold, always run their full length regardless of which rest setting is active. Only the gap between sets is ever shortened.

### What happens if I don't time my rest at all?

It drifts. Self-selected rest gets shorter when you are impatient and longer when you check your phone, and it is rarely the same two sessions in a row. A program that compares this week's sets to last week's sets, which is how double progression decides whether to add weight, needs the conditions to hold still. An untimed rest period is one more thing that quietly changed.


## Sources

- [Schoenfeld et al. (2016): Longer Interset Rest Periods Enhance Muscle Strength and Hypertrophy in Resistance-Trained Men](https://pubmed.ncbi.nlm.nih.gov/26605807/)
- [Grgic et al. (2017): The Effects of Short Versus Long Inter-Set Rest Intervals in Resistance Training on Measures of Muscle Hypertrophy: A Systematic Review](https://pubmed.ncbi.nlm.nih.gov/28641044/)
- [Schoenfeld, Ogborn & Krieger (2017): Dose-Response Relationship Between Weekly Resistance Training Volume and Increases in Muscle Mass: A Systematic Review and Meta-Analysis](https://pubmed.ncbi.nlm.nih.gov/27433992/)

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*Scott Shumaker, maker of Compound. Builds Compound, an iPhone and Apple Watch app that runs one lifting program and does the bookkeeping. Trains on the pull, push, legs and auxiliary split, and wrote the progression engine described here.*

*Compound: A workout app with exactly one workout in it. Four days, automatic double progression, warm-up and mobility built in. No account, no cloud. https://trycompound.cc*