The Claim
The hypertrophic response to resistance training is conserved within individuals across different muscle groups, such that individuals exhibiting a strong hypertrophic response in one muscle group also exhibit a similarly strong response in other muscle groups, irrespective of the load applied.
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.
People who gain muscle size in one muscle group from resistance training tend to gain similar amounts of muscle size in other muscle groups, no matter what weight they use.
See the scientific wording
The hypertrophic response to resistance training is conserved within individuals across different muscle groups, meaning those who respond strongly in one limb tend to respond similarly in another, regardless of load.
When muscles are worked to fatigue, the force they generate triggers a consistent internal signal that tells muscle cells to build more contractile proteins. This signal is the same across all muscles in the body, so people whose muscles naturally build more protein in one area will also build more in others, no matter which muscles are trained or how heavy the weights are.
What the research says
1 studyIf someone’s muscles grow a lot from lifting weights in their arms, they’re also likely to see similar muscle growth in their legs—even if they lift lighter or heavier weights—because their body just responds strongly (or weakly) to training overall, no matter which muscles they work.
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.