If you do the same workout three times a week instead of once, and you end up doing more total weight lifted, you’ll get stronger and build more muscle—because you’re doing more work overall.

Pro

Against

Evidence from Studies

Supporting (1)

Community contributions welcome

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

Randomized Controlled Trial

Human

2022

Contradicting (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

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 train a muscle three times a week instead of once, and you end up doing more total work, you’ll get stronger and bigger muscles—better than if you kept the same total work.

96%

If you lift weights the same total amount each week, it doesn’t matter if you do it in one big session or split into three smaller ones—you’ll get just as strong and build just as much muscle.

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Lifting weights more often helps you get stronger, but after a certain point, you don’t get much stronger no matter how much more you lift—plus, this slowdown happens sooner for strength than for muscle growth.

87%

If you lift weights more often each week, you’ll likely get stronger—but only up to a point. After a certain number of sessions, doing even more won’t help much more.

86%

If you're already experienced with weight training, doing 5 to 10 sets per muscle group each week builds just as much muscle and strength as doing 15 to 20 sets—so going over 10 sets won't give you extra gains.

86%