descriptive
Analysis v1
Strong Support
The way your muscles fire when you do leg presses vs. leg extensions matches up with which muscles end up getting bigger after training.
31
0
Evidence from Studies
Supporting (1)
31
Community contributions welcome
31
Hypertrophic Effects of Single- versus Multi-Joint Exercise: A Direct Comparison Between Knee Extension and Leg Press.
Randomized Controlled Trial
Human
2026 Feb 5The study found that which muscles 'light up' more during leg press vs. knee extension matches which muscles grow more after training—so yes, how your muscles fire during exercise is linked to how much they grow.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
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.