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Resistance training with 4-6 RPE and 7-9 RPE produces statistically ambiguous differences in muscle thickness changes at VL50.
Practitioners should consider that varying RPE levels may not lead to significant differences in muscle thickness.
StrongQualifiesmedium confidence
Our findings indicate that resistance training with 4-6 RPE and 7-9 RPE produces statistically ambiguous differences in MT changes at VL50.
Why this rating
Based on study design from abstract.
Source
Effect Of Proximity To Failure During Resistance Training On Vastus Lateralis Hypertrophy
Seth R. Hinson et al. · Medicine & Science in Sports & Exercise · 2023
DOI 10.1249/01.mss.0000984776.13400.ea
other · n=20
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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