The Claim
Resistance-trained individuals with at least one year of experience underestimate the number of repetitions they can perform before reaching momentary task failure by an average of 2.0 repetitions when using a 0 repetitions in reserve prediction during knee extension exercises at 70% of maximum strength, indicating poor accuracy in effort perception.
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.
People who lift weights for over a year often guess wrong about how many more reps they can do before getting tired—they usually think they can do about 2 fewer than they actually can.
See the scientific wording
Resistance-trained individuals with at least one year of experience typically underestimate the number of repetitions they can perform before reaching momentary task failure by an average of 2.0 repetitions when using a 0 repetitions in reserve (0RIR) prediction, indicating poor accuracy in effort perception during knee extension exercises at 70% of maximum strength.
What the research says
1 studyStudy: “Just One More Rep!” – Ability to Predict Proximity to Task Failure in Resistance Trained Persons
The study found that experienced lifters think they can do fewer reps than they actually can by about 2 reps, which matches the claim exactly.
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.