Why the “just add more sets” mantra isn’t always simple
If you’ve spent time in the gym, you’ve probably heard the advice: “Want to grow? Do more sets.” The idea makes sense, more volume should equal more stimulus, which should equal more gains. But anyone who’s tried endlessly piling on sets knows reality is more complicated. Too much too soon leads to burnout, soreness, or stagnation. Too little, and progress stalls.
That’s why new research on resistance-trained individuals is so valuable. It looks at whether progressively increasing weekly set volume produces greater strength and hypertrophy than sticking with a constant set number. The findings highlight both the benefits and the limits of chasing volume.
What the research says
Studies suggest that progressively adding sets over time tends to improve strength gains more than keeping volume constant. However, when it comes to muscle growth, the differences are often modest. Some muscles, like the quadriceps, may respond better to incremental volume increases, while others show little added benefit. In short, higher training volumes usually deliver strength advantages, but the payoff for hypertrophy is less predictable.
What does this mean?
The results suggest that volume progression matters for strength adding sets over time leads to stronger outcomes than sticking with a fixed set number. However, for muscle growth, the picture is more nuanced:
Strength gains are more volume-sensitive than hypertrophy. The progression groups built more 1RM strength, but the hypertrophy differences were smaller and inconsistent.
Not all muscles respond the same. Quadriceps CSA responded better to progressive volume, but total thigh thickness did not differ. This highlights how measurement methods and regional growth patterns influence conclusions.
Bigger isn’t always better. Pushing volume higher doesn’t guarantee more hypertrophy, especially if recovery is not matched.
How to apply this
For lifters and coaches, the research offers several practical lessons:
Start with a strong base. A consistent weekly set volume (~20+ sets for quads) still produces solid strength and size gains. You don’t always need progression to improve.
Add volume gradually. Increasing sets over time works, but the exact pace should match recovery ability.
Chase strength with volume, hypertrophy with balance. If your main goal is strength (e.g., increasing 1RM), progressive volume is a powerful tool. For hypertrophy, other variables load, effort, exercise selection, recovery matters just as much.
Respect individuality. Some athletes thrive on higher set volumes; others burn out. Volume progression should be individualized, not blindly copied.
Limitations and future directions
Most research is based on trained participants, so beginners or older adults may respond differently.
Many studies run for only a few months; longer-term differences might emerge over time.
Hypertrophy responses vary widely by muscle group and measurement technique.
Conclusion: More isn’t always more
The takeaway is clear: increasing weekly set volume can improve strength outcomes in individuals and may offer small additional benefits for hypertrophy in certain muscles. But volume is not a magic bullet. Beyond a point, more sets don’t guarantee more size and smart programming requires balancing intensity, recovery, and progression.
So, the next time you’re tempted to tack on “just a few more sets,” remember: volume progression works best when it’s strategic, not reckless.
