The Claim

Resistance training performed to failure results in a greater increase in muscle hypertrophy compared to resistance training not performed to failure, with a standardized mean difference of 0.75 (p = 0.005), as determined by a meta-analysis of 13 longitudinal studies in adults.

Source: Effects of Resistance Training Performed to Failure or Not to Failure on Muscle Strength, Hypertrophy, and Power Output: A Systematic Review With Meta-Analysis.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
39score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

Lifting weights until you can't do any more reps makes your muscles grow bigger than lifting weights without pushing to your limit, based on a big review of studies.

See the scientific wording

Resistance training performed to failure shows a greater increase in muscle hypertrophy than resistance training not performed to failure, with a standardized mean difference of 0.75 (p = 0.005), based on a meta-analysis of 13 longitudinal studies in adults.

What the research says

1 study

  1. Study: Effects of Resistance Training Performed to Failure or Not to Failure on Muscle Strength, Hypertrophy, and Power Output: A Systematic Review With Meta-Analysis.

    The study found exactly what the claim says: lifting weights until you can't do any more reps leads to more muscle growth than stopping early, with the same numbers and strong evidence.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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