When you lift weights, a specific protein in your muscles (4E-BP1) temporarily stops being activated in one way, even though another related protein (mTOR) stays just as active as before—this suggests that mTOR might be controlling 4E-BP1 through a different, hidden method.

37

Pro

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Against

Evidence from Studies

Supporting (1)

37

Community contributions welcome

37

Resistance exercise increases AMPK activity and reduces 4E‐BP1 phosphorylation and protein synthesis in human skeletal muscle

Cross-Sectional Study

Human

2006 Oct 15

When people lift weights, their muscles temporarily slow down protein building, and this study shows it’s not because the main growth signal (mTOR) is turned off — it’s because another signal (AMPK) is blocking a different part of the process, which matches the claim.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Resistance exercise increases AMPK activity and reduces 4E‐BP1 phosphorylation and protein synthesis in human skeletal muscle

Score: 37

DOI: 10.1113/jphysiol.2006.113175

Similar Assertions

When you lift weights, a specific system in your muscle cells gets activated and tells your body to build more muscle protein, making your muscles bigger and stronger.

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Even when the body is in starvation mode, one specific part of the muscle growth system (4E-BP1) becomes more active — which is confusing because other parts are shutting down.

32

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When you lift weights, your muscles temporarily stop building protein, but right after you finish, they kick into high gear to repair and grow—this happens because key signaling molecules in your muscles get activated during recovery.

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