If you train your legs with the leg press machine for 9 weeks, you’ll get stronger and your thighs will get bigger—even if you do it just once a week or spread it out over three days.

54

Pro

0

Against

Evidence from Studies

Supporting (1)

54

Community contributions welcome

54

Effect of different training frequencies on maximal strength performance and muscle hypertrophy in trained individuals—a within-subject design

Randomized Controlled Trial

Human

2022

The study found that doing leg presses once a week or three times a week gave the same strength and muscle gains in trained men, as long as the total amount of work was the same. So yes, frequency doesn’t matter — the claim is right.

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

Effect of different training frequencies on maximal strength performance and muscle hypertrophy in trained individuals—a within-subject design

Score: 54

DOI: 10.1371/journal.pone.0276154

Similar Assertions

If you do leg presses for 9 weeks, your legs will get stronger and bigger—even if you do it once or three times a week.

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Whether you rest 1 minute or 2.5 minutes between sets, your strength gains in squat and bench press end up being about the same after 10 weeks of training.

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If you're already strong and lift weights, training each muscle group either once or five times a week for eight weeks will give you about the same strength gains on the bench press, squat, and row.

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If a guy does leg workouts with just one leg, three times a week for two months using heavy weights, that one leg gets noticeably bigger in muscle size—especially the fast-twitch fibers—while the other leg stays the same.

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A study found that doing leg press exercises, whether with a special pre-exhaustion method or the regular way, didn't make the glute muscles grow much in men who were new to training after 9 weeks. This means the leg press machine isn't great for building these muscles.

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