The Claim
Resistance exercise induces skeletal muscle hypertrophy through mTORC1-mediated increases in muscle protein synthesis, which is a key but not the only mechanism underlying this adaptive response.
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 weights or do resistance training, your muscles get bigger — and one big reason is that your body turns on a molecular switch (mTORC1) that tells your muscles to make more protein, though other things are also helping out.
See the scientific wording
Resistance exercise induces skeletal muscle hypertrophy, with mTORC1-mediated increases in muscle protein synthesis being a key, but not sole, mechanism underlying this adaptation.
What the research says
1 studyStudy: Stimuli and sensors that initiate skeletal muscle hypertrophy following resistance exercise.
This study says that lifting weights makes muscles grow, and one big reason is that a specific cellular switch (mTORC1) turns on protein building — but it’s not the only reason. That’s 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.