The Claim
Higher training volume leads to a marginal increase in absolute muscle hypertrophy, as evidenced by greater quadriceps growth (e.g., 10.3% vs. 7.6%) even when within-subject pre-post changes are not statistically significant.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Doing more workout sets might help your muscles grow just a little bit more—even if the difference isn’t big enough to say for sure it’s not just random chance.
See the scientific wording
Absolute muscle hypertrophy increases marginally with higher training volume (e.g., 10.3% vs 7.6% quad growth), even when within-subject differences are not statistically significant in pre-post change analysis.
When muscles are worked with more sets, the repeated stretching and pulling activates sensors in the muscle fibers that turn on a molecular switch called mTOR. This switch tells the cell to make more building blocks for muscle proteins, and the cell uses those blocks to grow larger muscle fibers.
What the research says
2 studiesDoing more sets of leg exercises helped some older people grow their thigh muscles a little more, even when the difference wasn’t big enough to be 100% certain it wasn’t just luck. So, more workouts might help a tiny bit—even if it’s not a huge jump.
Doing more sets in your workouts probably helps your muscles grow just a little bit more, even if the difference isn’t huge or obvious in every person—the study found that more volume generally leads to more muscle growth over time.
Related videos
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.