If you're already strong and lift weights regularly, doing 10–15 hard sets per muscle group each week for 2 months will make you stronger and add a little muscle — whether you train your whole body every day or just once a week.

60

Pro

0

Against

Evidence from Studies

Supporting (1)

60

Community contributions welcome

60

High-frequency resistance training is not more effective than low-frequency resistance training in increasing muscle mass and strength in well-trained men.

Randomized Controlled Trial

Human

2019 Jul

The study found that whether you train each muscle group once a week or five times a week, as long as you do the same total number of heavy lifts each week, you get the same strength and muscle gains — so frequency doesn’t matter when volume is the same.

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

High-frequency resistance training is not more effective than low-frequency resistance training in increasing muscle mass and strength in well-trained men.

Score: 60

DOI: 10.1519/JSC.0000000000002559

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