The Claim

A meta-analysis of 13 longitudinal studies in adults found no significant difference in maximal strength outcomes between resistance training performed to failure and resistance training not performed to failure, with a standardized mean difference of -0.08 (p = 0.642).

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 doesn't make you stronger than stopping a few reps short, according to a big review of studies.

See the scientific wording

No significant difference exists between resistance training performed to failure and not to failure on maximal strength in overall analysis, with a standardized mean difference of -0.08 (p = 0.642), 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 looked at whether lifting weights until you can't lift anymore is better than stopping earlier for building strength. It found both ways work about the same, which matches the claim.

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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