The Claim
In untrained men, resistance exercise increases phosphorylation of the p38 MAPK gamma isoform by 3–4 fold following 1, 3, or 5 sets, indicating that this stress-response pathway is activated by mechanical load alone and is not influenced by training volume.
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.
When guys who don’t work out lift weights, their muscles turn on a specific stress signal—no matter if they do 1 set or 5 sets. It’s like the signal just needs the weight to be lifted, not how many times they do it.
See the scientific wording
In untrained men, resistance exercise increases p38 MAPK gamma isoform phosphorylation regardless of training volume (3–4 fold after 1, 3, or 5 sets), suggesting this stress-response pathway is activated by mechanical load alone and is volume-independent.
What the research says
1 studyThe study found that doing 1, 3, or 5 sets of heavy lifts all made the same stress-related protein (p38 MAPK gamma) activate equally — meaning it doesn’t matter how many sets you do, just that you lift weights.
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.