If young women who aren't used to working out do leg exercises focusing on the first part of the knee bend, they get stronger at that specific angle—more than if they did the full movement.

45

Pro

0

Against

Evidence from Studies

Supporting (1)

45

Community contributions welcome

45

From full to partials: Investigating the impact of range of motion training on maximum isometric action, and muscle hypertrophy in young women

Randomized Controlled Trial

Human

2025 Aug

The study found that women who trained their knee extensions in the upper range or varied ranges got stronger at that specific angle, which matches what the claim says.

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

From full to partials: Investigating the impact of range of motion training on maximum isometric action, and muscle hypertrophy in young women

Score: 45

DOI: 10.1080/02640414.2025.2502895

Similar Assertions

If young women who don't usually work out do leg exercises focusing on the last part of the knee bend, they get stronger in that exact spot—especially when they train between 65° and 30° of knee bend.

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If women who don't usually work out do leg exercises through only part of the movement, they get stronger in just that part of the motion — and it doesn't help much with the rest of the movement.

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When untrained men get stronger in a static leg press, the main reason is that their thigh muscle near the hip gets bigger and its fibers angle more, which helps push harder.

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Doing leg extensions one leg at a time for 12 weeks makes each leg stronger and more active when tested alone, better than doing both legs together — even though both methods improve overall leg strength similarly.

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Doing certain leg exercises that only use the last part of the movement doesn’t seem to help untrained women build muscle in specific parts of their thighs — it’s about the same as not exercising at all.

37

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