How to count sets per muscle group: direct, indirect and warm-up sets

What counts and how much, at a glance

Why count sets, not tonnage

Count working sets per muscle group across the whole week, because that is the unit in which research measures the training dose that drives muscle growth.

A review of 14 studies judged the number of sets taken to or near failure a good measure of volume (Baz-Valle et al. 2021). Weight times reps is tonnage, a separate measure.

For strength, the set count alone isn't enough: at the same effort, strength rose more after heavier sets (Lopez et al. 2021), so intensity matters too.

How to count a week's sets step by step

1. List the week's working sets, Monday to Sunday, without warm-up sets. If your cycle doesn't fit in 7 days, take the average of 2 weeks.
2. For each exercise, count a set as 1 for the muscle that mainly does the movement and 0.5 for each muscle that clearly assists (table below). Muscles that only stabilize or work lightly get 0.
3. Count a drop set as 1 set, and convert mini sets with the techniques table below.
4. Add up the sets for each muscle group.
5. Compare the total with the zones: MEV starts at 4 sets, MAV at 10. The weekly volume calculator does this faster.

Ramp-up sets in the squat, e.g. 60 kg × 5 and 80 kg × 3 before sets at 100 kg, are warm-up sets even if you do them wearing a belt.

If you've been training for less than a year, you don't need to count halves down to the set: 4-10 working sets per muscle group per week, which is MEV, is enough. Halves start to matter when you aim a priority muscle group at MAV and when a muscle group has stopped growing.

You add up the whole week because, at the same number of sets, training frequency didn't change muscle growth (frequency meta-analysis, Schoenfeld et al. 2019). Within one session, though, usually do up to about 10 sets per muscle group and split more volume over two sessions (how many sets per session).

Which sets count as working sets

A set is a run of reps done without rest (ACSM 2026 position stand). A working set is a set with your target weight, stopped with at most 4 reps in reserve; only these sets, which many guides call hard sets, count toward weekly volume. The limit of 4 is our counting convention, not a physiological threshold. The studies behind the zones mostly ended sets at or near failure, and further from failure, judging reps in reserve gets less accurate: on the RIR-based RPE scale, 4-6 reps in reserve is a single level (Helms et al. 2016).

Muscles grew more the closer to muscular failure sets ended (Robinson et al. 2024). A set with 5-6 reps in reserve, often written off as junk volume, still does something, but you don't count it toward the zones. Aim for 0-3 reps in reserve, most often 1-3; the ACSM position stand considers 2-3 enough effort.

A bodyweight set, like push-ups or pull-ups, counts the same as a barbell set if you stop it with up to 4 reps in reserve: push-ups to failure built about as much muscle and strength as a low-load barbell bench press (Kikuchi and Nakazato 2017).

A timed exercise like the plank adds no sets to the zones, because the meta-analysis behind them only included training that lowers and lifts a weight.

Full sets and half sets in compound exercises

In a compound exercise, the muscle that mainly does the movement gets a full set and a muscle that clearly assists gets half a set; this is called fractional set counting. One set of barbell bench press is 1 set for chest and 0.5 each for triceps and front delts.

The 67-study meta-analysis by Pelland et al. 2025 split sets into direct and indirect this way; of three ways to count indirect sets, as 1, 0.5 or 0, 0.5 fit best. The authors suggest that a set ends when the main muscle fatigues, while the assisting muscle is still further from failure.

A muscle that works lightly or only stabilizes gets 0, like the hamstrings in the barbell squat. Their activity in the squat is about half that of the quadriceps (Schoenfeld et al. 2019, a review on counting sets), and after 10 weeks of squats they didn't grow (Kubo et al. 2019).

Biceps also grow from pulling: the lat pulldown built as much biceps as curls, and the dumbbell row half as much (research table below), so the meta-analysis counted pulling as half a set for them. The SmartWorkout atlas gives biceps half a set in underhand-grip variations and nothing in most rows and pulldowns with an overhand or neutral grip. If biceps are your priority muscle group, add half a set for every such set.

How to count drop sets, rest-pause, Myo-reps and cluster sets

You count a drop set as one set, because there's no rest between drops. That's a conservative rule: in Fink et al. 2018, one drop set built at least as much muscle as 3 regular sets. SmartWorkout counts mini sets after a pause separately, because you log them as separate sets; when planning a week, convert them with the last column of the table.

In rest-pause and Myo-reps, the more mini sets you do, the more you count. SmartWorkout shows more sets for these techniques than most studies and the author of Myo-reps count: rest-pause with 2 continuations on the last of 3 sets is 5 sets in the app and 3-4 in your weekly plan. Don't add mini sets just to push the count up to the zone target.

A week of an upper/lower plan counted three ways

Week 2 of the 4-day upper/lower plan for intermediate lifters is 4 workouts at RIR 1-2; the table counts it without warm-up sets, with muscle groups as in the SmartWorkout atlas.

You count triceps like this: 6 sets of triceps extensions plus half of 3 sets of barbell bench press and 4 sets of incline dumbbell bench press, so 6 + 3.5 = 9.5.

Front delts get 3, 8.5 or 14 sets, which is MV, MEV or MAV: if they were a priority muscle group with a MAV target, the counting method would decide whether you add an exercise for them.

Biceps get 6 in every column, because the rows and pulldowns in this plan give them no sets in the atlas; if you counted pulls as half a set, as the meta-analysis did, they would have 11.5.

How many sets each exercise gives

The table shows the split from the SmartWorkout atlas; a muscle that works lightly or only stabilizes gets nothing.

Common mistakes

1. Counting warm-up sets. Ramp-up sets logged as working sets add several sets per muscle group to the week. Mark them as warm-up sets.
2. A full set for every muscle group. Triceps and front delts then collect more sets than the chest, which mainly does the movement. Give them half a set each.
3. Skipping the halves. Then front delts look undertrained even after several presses, and you add exercises for them that they don't need. Count half a set from every press.
4. Counting a one-arm set twice. You do the Dumbbell Bent Over Row with one arm, then the other; count both sides together as 1 set for back.

What the research says

We don't know whether half a set fits every muscle and exercise, or how to count drops and mini sets; studies comparing compound and isolation exercises are almost all about the biceps.

What SmartWorkout logs show

Triceps collect almost as many sets as chest, and front delts about three quarters of that; some of these sets are halves from presses and, for people who don't mark warm-ups, ramp-up sets too. Every number is based on at least 50 people.

How to count sets in SmartWorkout

SmartWorkout counts weekly sets for you; in the log, you mark warm-ups with a set type so they don't inflate the week.

1. In the set menu, mark lighter sets before your working sets as “Warm-up”, or add them with “Insert Warm-up”. SmartWorkout doesn't check reps in reserve, so every completed working set goes into the zones. In a week of lighter sets (technique work, a deload, a strength block), the zones count those sets in full and show more than you really did; don't add sets that week.
2. Mark drop-set drops in the same menu as “Drop set”.
3. Log rest-pause, Myo-reps and cluster-set mini sets as separate working sets (“Working set”) with a short rest.
4. You also see set totals in Profile > Statistics (“Sets by muscle group”), but there every set goes to the exercise's one main muscle group, without halves.

SmartWorkout counts a drop set as 1 set: sets of the Drop set type add nothing, and the working set before them counts.

With Premium, you see each muscle group's weekly sets against the volume zones while you train, and in “Strength vs. Volume” whether an exercise “counts as full set” or “counts as ½ set” for that muscle group.

You can paste the “Upper A” day below through plan import (Workout > My Plans > “+” > “Import plan”). Import costs 10 AI credits, so the welcome credits cover it.

DAY: Upper A- Barbell Bench Press | WU 2x5 | 4x6-8 RIR 2 | TEMPO 20X0 | REST 180- Chin-Up | 3x6-10 RIR 2 | TEMPO 2010 | REST 150- Barbell Bent Over Row | 3x8-10 RIR 2 | TEMPO 2010 | REST 120- Barbell Overhead Press | 3x8-10 RIR 2 | TEMPO 2010 | REST 120- Rope Triceps Pushdown | 3x10-15 RIR 1 + DROPSET 1x8-12 | TEMPO 2011 | REST 60