The Claim
In untrained young men, training volume has no significant effect on upper-body muscle cross-sectional area, as demonstrated by equivalent trapezius muscle growth between one-set and three-set resistance training groups over an 11-week period.
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.
In untrained young men, performing one set or three sets of resistance exercises results in the same amount of growth in the trapezius muscle over 11 weeks.
See the scientific wording
In untrained young men, training volume does not significantly affect upper-body muscle cross-sectional area, as evidenced by no difference in trapezius muscle growth between one-set and three-set training groups over 11 weeks.
When untrained men lift weights, their upper-body muscles reach a point where adding more sets does not increase protein building because the muscle's ability to respond to training signals is already maxed out after one set.
What the research says
1 studyIn guys who’ve never lifted weights before, doing three sets of upper-body exercises didn’t make their shoulder and back muscles grow any bigger than doing just one set over 11 weeks.
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.