The Claim
When volume and load are controlled, resistance training proximity to failure (RIR) shows no meaningful association with strength gains, as confidence intervals for RIR slopes in all best-fit models included the null value, indicating similar strength improvements across a wide range of RIR values.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
If you lift weights with different levels of effort—whether you stop just before failure or push almost to failure—you’ll still gain about the same amount of strength, as long as you’re doing the same total amount of work and using the same weight.
See the scientific wording
Resistance training proximity to failure (RIR) shows no meaningful association with strength gains, as confidence intervals for RIR slopes in all best-fit models included the null value, indicating similar strength improvements across a wide range of RIR values when volume and load are controlled.
What the research says
1 studyThis study found that whether you stop your weightlifting sets far from failure or almost to failure, you still gain about the same amount of strength — as long as you do the same total amount of work and lift similar weights.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.