Doing leg extensions makes the front thigh muscle bigger along its whole length more than doing squats, especially near the knee.

48

Pro

0

Against

Evidence from Studies

Supporting (1)

48

Community contributions welcome

48

Comparison of Muscle Hypertrophy and Strength Adaptations Induced by Back Squat and Leg Extension Resistance Exercises.

Randomized Controlled Trial

Human

2025 Dec 12

The study found that doing leg extensions made the front thigh muscle grow more than doing squats, exactly as the claim says — with the same numbers and in the same group of women.

Contradicting (0)

0

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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.

Source Study

Comparison of Muscle Hypertrophy and Strength Adaptations Induced by Back Squat and Leg Extension Resistance Exercises.

Score: 48

DOI: 10.1519/JSC.0000000000005338

Similar Assertions

Doing leg extensions makes the front thigh muscle grow more evenly along its length than doing squats, which don’t stimulate that muscle as much.

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Doing leg extensions for 8 weeks makes the front thigh muscle bigger along its whole length more than doing squats, especially near the knee.

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Doing leg extensions (kicking your leg out while sitting) makes the front thigh muscle right above your knee grow more than doing leg presses (pushing a heavy platform with both legs).

61

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Different leg exercises make different parts of your thigh muscles bigger — leg extensions grow the front part, squats grow the lower outer part.

48

0

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Doing leg extensions with drop sets (going to failure, then lowering the weight and going again) makes the front part of your thigh muscle bigger in the upper and middle areas, but not the bottom part or the side muscle.

54

0

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