Rest-pause sets: a set, a short break, and more reps with the same weight

In a normal set you do your reps, rest a couple of minutes, and go again. In a rest-pause set the weight stays the same and the rest gets very short: you take a set to failure or close to it, rest a few breaths, and squeeze out more reps, until you reach a total you planned in advance. A 2021 review describes it as normal rest between sets plus planned rest inside them.¹

Drop sets cut the weight instead of resting; they live on the supersets page. Rest between normal sets is how long to rest between sets.

The two common ways to do it

The 2021 review describes two versions.¹

Heavy singles with short breaks are close to what cluster sets are. Most of the studies below used the second version.

What the studies measured

• Same strength, shorter sessions. In a 6-week trial, 18 trained adults (7 men and 2 women in each group) trained either with 3 sets of 6 at 80% of their one-rep max and 2-minute rests, or rest-pause: one set to failure at 80%, then 20-second rests and more reps until 18 were done. One-rep max gains on the bench press, leg press and biceps curl didn't differ between groups. The rest-pause group gained more leg press reps at a set weight, and more thigh muscle thickness (11% against 1%).^2,1 The 2021 review adds a caveat: the normal-sets group stopped at 6 reps, short of failure, so the extra growth may come from the harder effort in the rest-pause group.¹ The review also reports the sessions took about 35 minutes with rest-pause against 57 with normal sets.¹
• Slightly more squat strength, similar thigh growth. In an 8-week trial, 28 trained men were assigned to rest-pause, drop sets or normal sets, twice a week, with the total training volume matched. Rest-pause raised the barbell back squat one-rep max more than normal sets did; drop sets didn't differ from either. Thigh muscle thickness grew similarly in all three groups at two of the three sites measured; the third, nearest the knee, didn't change in any group.³
• The same reps, done much faster. In a 2012 study, 14 trained men did 20 squats at 80% of their one-rep max three ways: 5 sets of 4 with 3 minutes' rest, 5 sets of 4 with 20 seconds' rest, or rest-pause. Rest-pause took about 103 seconds, in about two sets, against 140 seconds with 20-second rests and 780 with 3-minute rests. Strength dropped by a similar amount after all three and recovered within 5 minutes, and muscle activity during the squats was higher with rest-pause.⁴
• More total weight in trained women. In a 2018 study, 13 trained women did four squat sets to failure at 80% of their one-rep max, with 2-minute rests, once normally and once with a 4-second rest between reps (a different version of rest-pause). The rest-pause day added up to more weight lifted, 2,532 kg against 2,036. The change in glute muscle activity was larger on the normal day.⁵

The trials are small and short, and they tested trained lifters. Taken together they don't show rest-pause beating normal sets for strength or muscle by much; they show it getting a similar amount of work done in less time.

How to do a rest-pause set

The numbers in steps 1 and 2 are the ones the 6-week trial used.² The rest are practical cues.

1. Pick the weight and the total. For example, 80% of your one-rep max and 18 total reps.
2. Do the first set to failure, or a rep short of it, then rack the weight and rest about 20 seconds.
3. Do another mini-set with the same weight, rest about 20 seconds again, and keep going until the total is done.
4. Use it on one or two exercises a session, usually the last set of a lift, not on every set.
5. Pick lifts you can set down quickly and safely: machines, cables, dumbbells, or a squat or bench in a rack with safety arms.

How close to failure is close enough: reps in reserve.

When it fits

• Short sessions. The 2021 review groups it with supersets and drop sets as methods that roughly halve training time while keeping the volume.¹
• Machines and isolation work, such as the leg press, lat pulldown, leg extension or curls (practical).
• Not when you're new. Every trial here used trained lifters. Learn the lifts with straight sets first (practical).

Common mistakes

• Resting too long. Past a minute it's just another set (practical).
• Rest-pause on every exercise. Keep it to one or two, at the end (practical).
• Grinding reps with bad form on a free-weight lift without safety arms (practical).
• Training through pain. If you have pain, an injury or a medical condition, stop and ask a doctor or a physical therapist.

Common questions

Rest-pause sets vs straight sets?

For strength, the 6-week trial found no difference, and the 8-week trial found slightly more squat strength with rest-pause.^2,3 The clearest difference is time: about 35 minutes against 57 a session in the 6-week trial.¹

Are rest-pause sets good for hypertrophy?

In the 8-week trial, thigh muscle thickness grew similarly with rest-pause, drop sets and normal sets when volume was matched.³ The 6-week trial measured more thigh thickness with rest-pause, in 18 people, though its normal-sets group stopped short of failure.^2,1

Rest-pause vs drop sets?

A rest-pause set keeps the weight and adds short rests; a drop set cuts the weight and skips the rest. In the 8-week trial neither beat the other.³ Drop sets: on the supersets page.

How long is the rest in a rest-pause set?

Often 20 seconds, the 2021 review says, and 20 seconds is what the 2012 squat study and the 6-week trial used.^1,4 One study used 4 seconds between single reps.⁵

If you'd rather have it built for you

A rest-pause set is a tool for a short session. Which lifts get one, how heavy, and how it fits around the days you actually train are the parts a page can't settle. Coaching is the version where your workouts live in Trainerize, built around the days you actually have, and a weekly call goes over the week you just had and sets the next one. Coaching to build muscle explains how that works, and apply is where you tell me about your week.