The Claim
The relationship between resistance training volume and muscle hypertrophy in trained individuals is inconsistent across experimental studies, indicating that current dose-response models do not fully apply to this population.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In people who already train with weights, increasing the amount of resistance training does not consistently lead to more muscle growth, suggesting existing models predicting how much muscle grows from more training may not work for them.
See the scientific wording
The relationship between resistance training volume and muscle hypertrophy in trained individuals remains inconsistent across experimental studies, indicating that current models of dose-response may not fully apply to this population.
After years of training, muscles become less responsive to extra workload, so adding more sets doesn't always make them grow bigger — some muscles keep responding, others stop reacting even when pushed harder.
What the research says
1 studyStudy: The Importance of Previous Resistance Training Volume on Muscle Growth in Trained Individuals
For experienced lifters, doing more sets doesn’t always mean more muscle growth — some people see gains with fewer sets, others need more. This means the simple rule 'more is better' doesn’t always work for them.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.