You're either doing three sets for chest a week and waiting on a miracle, or burying it under twenty-five and wondering why everything aches with no progress. Both stall your growth for the same reason - you're not counting volume.
There are two ways to kill muscle growth, and both revolve around how many sets you do. The first is too few: a couple of sets per group a week, no stimulus, your body sees no reason to change. The second is too many: a pile of sets you physically can't recover from, so instead of growth you get chronic fatigue and joints that ache in the morning.
The frustrating part is that most lifters don't even know which way they're missing. Because nobody counts their weekly volume. Ask someone how many working sets they did for back last week and you'll get a long pause and "well, I did some rows... and pull-ups, I think." That's not an answer. That's a guess.
Quick test: name right now how many working sets you did for chest in the last seven days. An exact number. If you can't, you're not managing volume - you're just showing up to the gym and hoping it sorts itself out.
What a working set is and why it matters
A working set is a hard set taken close to failure, usually a couple of reps short of it. Warm-up sets with an empty bar don't count. Three curls with a dumbbell you grab on autopilot don't count either. Only the sets that genuinely challenge the muscle build volume.
That's exactly why weekly volume is counted in working sets per muscle group - not in time spent in the gym, not in number of exercises. You can spend two hours in the gym and net six quality sets for legs. Or net twelve in forty minutes. Hours in the gym don't grow muscle. Working sets do.
The target: 10-20 sets per group per week
Boil a mountain of research down to one usable number and you land on a range of 10-20 working sets per muscle group per week. That's the zone where growth runs steady for most people.
- Under 10: maintenance. You'll hold your shape but don't expect much growth.
- 10-20: the working zone. This is where you should live most of the time.
- Over 20: advanced territory, and not always even then. More often it's just overkill that hurts recovery more than it helps growth.
A beginner is fine at the low end: start with 10-12 sets per group and let your body settle into them. Advanced lifters sometimes need closer to 18-20 to move a lagging group. But jumping straight to the ceiling is pointless - you won't recover, and you'll grow slower than you would at a sensible middle.
Stop training from memory
Body Forge logs every set, drives your progression and keeps you honest about recovery. Free, no ads, no forced subscriptions.
Why more isn't better
It sounds logical in your head: more sets, more growth. Up to a point, that holds. But the curve flattens fast, then bends downward. Every extra set past your sweet spot delivers less benefit and more fatigue.
Volume you can't recover from isn't training, it's a hole. You hammer twenty-five sets for chest, undersleep, show up to the next session wrecked, and grind those sets at half effort. The real stimulus drops even though the volume looks huge on paper. That's junk volume: big number, little payoff.
There's a hidden cost too. While you're burying yourself in extra sets for a favorite group, your whole-body recovery suffers and other muscles get shortchanged. Less but better almost always beats more but forced.
How to count weekly volume
It's simpler than it sounds. Take each muscle group and add up the working sets across every exercise where it genuinely works, over a calendar week.
Just keep one wrinkle in mind: compound lifts hit several groups at once. Bench press is sets for chest, triceps, and partly shoulders. A bent-over row hits back and biceps. Ignore that indirect work and it's easy to think you're short on arms when the compounds already gave them plenty of volume.
Running that tally in your head or a notebook is nearly impossible, especially with lots of exercises and a messy week. That's why volume stays a blind spot for most people - not because it's hard, but because counting it by hand is a chore.
What this looks like in Body Forge
This is where an app that counts for you earns its keep. Body Forge logs every set in real time, so your whole history sits organized by exercise and date - and your weekly volume comes from real data, not from your memory.
- The set log captures weight, reps, and rest instantly, and growth arrows compare the current set to last session, so you see whether your volume is building with purpose.
- Per-exercise history is always on hand: open it and see how many working sets per group you racked up this week.
- Personal records flag themselves - a handy marker that your volume is enough and it's paying off.
- 640+ exercises with form cues so you can spread volume smartly across movements instead of hammering the same press variation.
No ads, no forced subscriptions. Just your real load in numbers, so you can tell whether you're falling short or already going overboard.
Your plan for the week
Don't rebuild the program - just clean up your volume.
- 1Take the groups that matter most to you and count how many working sets you currently do for each per week. Hard sets only; warm-ups don't count.
- 2Compare against the 10-20 range. Under 10, add a couple of sets. Over 20 with no clear reason, cut without hesitation.
- 3Change volume gradually, 2-3 sets at a time, and watch recovery and progress in your history.
- 4In a month, check the numbers. If the weights are climbing and you've got the energy, your volume is dialed in.
Muscle growth isn't about who leaves the most on the floor in a single workout. It's about who hit the right weekly volume and held it long enough. Start counting your sets and you'll stop missing your growth zone.
Frequently asked
For most people, 10-20 working sets per muscle group per week. Beginners are fine at the low end, 10-12; advanced lifters sometimes need closer to 18-20. Only hard sets near failure count - warm-ups don't.
Stop training from memory
Body Forge logs every set, drives your progression and keeps you honest about recovery. Free, no ads, no forced subscriptions.
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