Add Sets Before Adding Exercises

The Point

• Once a muscle is already covered well, add hard sets before adding more exercises.
• Another quality set of an exercise you already do is usually more useful than a set of a new one.
• Keeping the same exercises also makes progress easier to compare.

The Reason

After a muscle group is trained in the positions that matter, growth is driven more by hard working sets than by how many exercise names appear in the session or the week.

A hard set on an exercise you already perform well is usually more useful than a hard set of a new movement that trains the same muscle in a similar way. You already know how to load it, aim it, and progress it. That is why adding sets is the first move when you need more work. Those extra sets also have more room than most people think.

Weekly hard-set volume can keep supporting muscle growth well above the ranges most people treat as a ceiling—even up to 50 sets per muscle per week. That is permission to add sets. It is not a target. Each extra set tends to give a smaller return, and the useful amount is still the amount you can perform well and recover from.

The exception is coverage. Enough exercises usually means one to three well-chosen movements that train the muscle group in the positions that matter, not a long menu. An extra exercise is most beneficial when it fills a gap—for example, a stretch-biased movement you do not already have. A fifth chest exercise that repeats the same pattern is usually a weaker move than another set of a movement you already do well.

Redundant exercises and frequent, random changes also do not unlock more progress. They can make the work feel more complete while making it harder to improve any single movement.

That is also why keeping the same exercises helps. Load, reps, and effort stay easier to compare week to week. A new exercise often needs its own warm-up and a stretch of practice before the numbers mean much. You spend time and fatigue before those sets catch up to another set of work you already know how to do.

What To Do

If the muscle is already covered well and you need more stimulus, add 1-2 hard sets to the exercises that are progressing and recovering well.

An added set will often perform a bit lower, especially when it is first added. That is expected. If range of motion shortens, control fades, or the target muscle stops doing the work, stop the set there even if the reps came in below your usual number.

If you are bored but coverage is already good, swap a movement completely. Do not add more exercises on top of existing movements.

Add or change an exercise when there is a real gap, a joint issue, an equipment limit, or a phase reason. Do not add exercises in an attempt to unlock more growth.

Common Misreads

• “I need more exercises to keep growing.” Not if coverage is already good. More hard sets on the work you have is usually enough.
• “50 sets per week is the goal.” No. High weekly set counts can still build muscle if you recover well. That does not make a high number the right target.
• “A new exercise is a better stimulus than another set of one I already do.” Not when it trains the same muscle in a similar way. Another set of the exercise you already do well is usually the better use of that work.
• “Boredom means I should add movements.” No. Boredom can be a reason to swap a movement so you stay consistent. It is not a reason to pile on extra exercises.
• “More exercises automatically mean more complete development.” Only if the new movement fills a gap. Repeating the same pattern under a new name does not.
• “If the extra set has fewer reps, it did not count.” No. Extra sets often perform a bit lower at first. Stop when quality drifts rather than chasing the usual number.

Exceptions

Your coach may add or change movements when a muscle is not covered well, a movement causes pain, equipment is limited, a sport skill needs specific practice, or the current phase has a different priority.

If recovery is limited or life stress is high, the first move is usually to hold volume rather than chase higher set counts.

Related Guides

• What Training Volume Means - what counts as a hard set.
• Why Exercise Variation Matters - when to change a movement rather than add one.
• Progressive Overload - why keeping exercises stable makes progress easier to measure.

References

• Kassiano W, Nunes JP, Costa B, et al. Does Varying Resistance Exercises Promote Superior Muscle Hypertrophy and Strength Gains? A Systematic Review. Journal of Strength and Conditioning Research. 2022. doi:10.1519/jsc.0000000000004258
• Pelland JC, Remmert JF, Robinson ZP, et al. The Resistance Training Dose Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gains. Sports Medicine. 2026. doi:10.1007/s40279-025-02344-w