The Claim
Repetitions in Reserve scale accuracy decreases as relative load (percentage of 1 repetition maximum) decreases in resistance training among adults, indicating that lighter weights lead to less reliable effort perception compared to heavier loads.
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.
When people lift lighter weights compared to their max, it's harder for them to accurately guess how many more reps they could do, making it less reliable than when lifting heavier weights.
See the scientific wording
Repetitions in Reserve scale accuracy decreases as relative load (percentage of 1 repetition maximum) decreases in resistance training among adults, showing that lighter weights lead to less reliable effort perception compared to heavier loads.
What the research says
1 studyThe study looked at how well people can judge their effort during weightlifting and found that when using lighter weights, their guesses are less accurate, which supports the claim.
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.