If you only do the first half of a leg extension, your upper thigh muscle grows more than if you do the full motion.

28

Pro

0

Against

Evidence from Studies

Supporting (1)

28

Community contributions welcome

28

Which ROMs Lead to Rome? A Systematic Review of the Effects of Range of Motion on Muscle Hypertrophy

Systematic Review With Meta-Analysis

Human

2023 May 1

This study found that doing part of a leg exercise (like a squat) only at the start, not all the way down, made the top part of the thigh muscle grow more than doing the full movement — and the numbers prove it.

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.

Source Study

Which ROMs Lead to Rome? A Systematic Review of the Effects of Range of Motion on Muscle Hypertrophy

Score: 28

DOI: 10.1519/JSC.0000000000004415

Similar Assertions

Doing exercises through a full motion or starting the movement with a shorter motion (but not ending with it) helps your muscles grow more in your thighs and biceps than doing only the last part of the movement.

28

0

87%

Doing exercises through a full motion or starting the movement with a shorter motion (but not ending with it) helps your muscles grow more in your thighs and biceps than doing only the last part of the movement.

28

0

86%

If you're a young woman just starting to lift weights, doing exercises through certain parts of the movement — like the top half or the full motion — helps your leg muscles grow more than doing just the bottom part. Not all shortcuts in the exercise are equally good for building muscle.

45

0

73%