Compound sets in lifting: two exercises for one muscle, back to back

Compound set key numbers

Compound sets, tri-sets and giant sets

A compound set is two exercises for the same muscle group done back to back without rest, and you rest only after both. Some guides call it an agonist superset. Three such exercises make a tri-set (triple set), four or more a giant set.

The name of an exercise group depends on whether its exercises share a main muscle group.

Some guides and studies call any pair a superset, two biceps exercises included, and some use “compound set” for any superset. On this page, as in the table, two biceps exercises are a compound set, and biceps with triceps are a superset.

Shoulders count as one muscle group here, so dumbbell lateral raises with cable rear delt flyes make a compound set. Each trains a different head of the deltoid, though, so the second exercise works a fresh part of the muscle and you don't need to lower the weight.

Tri-sets

A tri-set is three exercises for the same muscle group done back to back without rest, e.g. for chest Machine Chest Press, Cable Middle Chest Fly and Push-Up. Do 2-3 rounds of 10-15 reps with 2-3 minutes of rest. Some guides call any three exercises in a row a tri-set; three exercises for different muscle groups are a circuit.

Giant sets in lifting

A giant set is four or more exercises for the same muscle group done back to back without rest, e.g. for shoulders Seated Dumbbell Shoulder Press, Dumbbell Lateral Raise, Dumbbell Front Raise and Cable Rear Delt Fly. In a 6-week study by Demirtaş et al. 2022, untrained men doing giant sets gained as much strength and muscle as a group doing compound sets. For shoulders they did 4 rounds of 10-12 reps once a week with 60 s of rest. With the exercises from the example, that's 10 weekly sets for the front delts, 10 for the side delts and 4 for the rear delts. Start with 2 rounds and 2-3 minutes of rest. Giant sets have their own page.

When compound sets are worth it

Compound sets, like other intensity techniques, don't build more muscle than the same sets done separately: that was the result in 6- and 8-week studies, and with pre-exhaust growth was slightly smaller (Demirtaş et al. 2022, Hermann et al. 2026). What they give you is time, and the price is fatigue: you get fewer reps in the later rounds.

The time saving comes from the rest you skip: compared with straight sets with a rest after each one, the same workout done as pre-exhaust or tri-sets took 36-48% less time (De Camargo et al. 2022 and the Hermann study). With 60 s of rest between straight sets you save less: the 4 shoulder rounds from the example below take about 9 minutes instead of 12.

Tonnage (weight × reps) dropped by 16-23% (least, by 16%, in Wallace et al. 2019), but in the 2026 ACSM position stand muscle growth depended on the number of sets, not on the weight. So the reason to choose a compound set is time: most often, it lets you fit extra sets for a muscle group you want to bring up into a few minutes (muscle priority).

In your first months, stick with straight sets: you'll grow without compound sets, and reps in reserve are hardest to judge on a tired muscle.

How to do a compound set

1. Pick two exercises with the same main muscle group at stations next to each other, e.g. dumbbells by the cable stack.
2. Start with the heavier or multi-joint one (post-exhaust); the reverse order is pre-exhaust (below).
3. If the second exercise trains the same muscle, take 10-20% less than you would fresh or plan 2-4 fewer reps.
4. Start the second exercise no later than 20 s after the first.
5. After the round, rest 60-90 s, or 2-3 minutes with a multi-joint exercise (rest between sets); do 2-4 rounds.
6. Log each set separately and keep the same order every week, so you can compare the second exercise's results.

Pre-exhaust

Pre-exhaust is a compound set in reverse order: an isolation exercise first, then a multi-joint exercise for the same muscle group right away. Arthur Jones, who created the method, recommended taking the isolation exercise to failure for 20-30 reps and the multi-joint one about half as heavy (Trindade et al. 2022).

Flyes before the bench press don't make the chest work harder: EMG showed the triceps working harder instead (Gentil et al. 2007). After 8 weeks in trained lifters, pre-exhaust needed lighter weights on the multi-joint exercise, and muscles grew slightly less than with straight sets (Hermann et al. 2026). On the multi-joint exercise, start at about 60% of the weight you'd use for 10 reps when fresh, and correct it in the second round.

Choose pre-exhaust when heavy weight is the problem: a joint hurts, or you only have light dumbbells at home. Do the multi-joint exercise on a machine, a leg press or with dumbbells, not with a barbell: after isolation, failure comes sooner than you expect.

Compound set examples with weights and reps

Each row is one compound set, done after your main exercises.

Compound sets for shoulders, chest, back, arms and legs

For compound sets, pick isolation exercises on machines, cables or with dumbbells: if you fail a rep on a tired muscle there, nothing bad happens.

Compound sets vs supersets and circuits

How to count compound sets in weekly volume

In a compound set you count sets as usual: every set of every exercise gives 1 set to each muscle group it trains directly and 0.5 to each it trains indirectly (Pelland et al. 2025).

A mechanical drop set is counted differently: there, after failure you change only the grip or angle of the same exercise, and the whole sequence is 1 set. In a compound set, the second exercise has its own rep target and counts separately.

When you count weekly sets, shoulders are three muscle groups (front, side and rear delts): the 4 shoulder rounds from the examples give you 4 sets for the side delts, 4 for the rear delts and 2 for the front delts. You can check your week against the volume zones in the sets per muscle group calculator.

Common mistakes

1. Doing the second exercise as if fresh. A tired muscle does fewer reps; lower the weight or the rep target.
2. A heavy barbell lift in the group. In a compound set, the barbell bench press lost more speed and power than in supersets (Weakley et al. 2020). Do heavy barbell lifts on their own, before the group.
3. Taking too long to switch. If you spend a minute looking for a free station, you're really doing two straight sets; set up the weight for the second exercise before the round.
4. A compound set for every muscle group. Exercises done this way raised a muscle damage marker almost twice as much as the same exercises done separately (Brentano et al. 2017), so recovery takes longer. Save compound sets for 1-2 muscle groups at the end of the workout.

What the research says

There are only a few studies lasting weeks, giant sets were studied once, and it's unknown whether compound sets build muscle as well as straight sets in trained lifters.

What SmartWorkout logs show

Every number is based on at least 50 people.

How to log a compound set in SmartWorkout

You log a compound set in SmartWorkout as an exercise group: in the workout log, in templates and in plans.

1. On the workout screen, tap “Add Superset”, select the exercises for the same muscle group and confirm.
2. In the menu of every exercise except the last, choose “Set all rest timers” and set 0 s (“Off” on the picker wheel); give the last one the rest after the round, e.g. 60 s.
3. Alternate the sets; the timer starts after the last exercise of the round.

From version 5.2 the button is called “Add Exercise Group”, and the group gets its name from the table above, e.g. “Compound Set”.

With Premium, you see these sets against the volume zones while you train.

This fragment is a shortened Upper B day from the free 4-day upper/lower plan: a compound set first, then a superset. You can paste it through plan import (Workout > My Plans > “+” > “Import plan”); import costs 10 AI credits, so the welcome credits cover it.

DAY: Upper B- Incline Dumbbell Bench Press | WU 2x8 | 4x8-12 RIR 2 | TEMPO 20X0 | REST 120- Cable Neutral Grip Lat Pulldown | 3x8-12 RIR 1 | TEMPO 2011 | REST 120LINKED:- Dumbbell Lateral Raise | 4x12-20 RIR 1 | TEMPO 2010 | REST 0- Cable Rear Delt Fly | 4x12-20 RIR 1 | TEMPO 2011 | REST 60END LINKEDLINKED:- Cable Overhead Triceps Extension | 3x10-15 RIR 1 | TEMPO 3010 | REST 0- Seated Incline Biceps Curl | 3x10-15 RIR 1 | TEMPO 3010 | REST 60END LINKED