The Claim
Mechanical overload induced by resistance training promotes skeletal muscle hypertrophy by activating mTORC1 signaling, which subsequently increases muscle protein synthesis and ribosome biogenesis, thereby enhancing the translational capacity of muscle cells to support growth.
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.
When you lift heavy weights, your muscles get stretched and stressed just enough to tell your body to build more muscle fibers—this happens because a special molecular switch (mTORC1) turns on, making your muscles produce more proteins and the machinery needed to make them.
See the scientific wording
Mechanical overload from resistance training induces skeletal muscle hypertrophy through increased mTORC1 signaling, which enhances muscle protein synthesis and ribosome biogenesis, enabling greater translational capacity for muscle growth.
What the research says
1 studyThis study says that lifting heavy weights makes muscles grow bigger by turning on a cellular switch (mTORC1) that helps muscles make more proteins and build more machinery to do it — which is exactly what the claim says.
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.