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Trivial between-group effect sizes were observed when comparing the strength gains of the 4-6 RPE group to the 7-9 RPE group (g = -0.12).
The similarity in strength gains suggests that both training intensities may be equally effective for improving squat strength.
StrongSupportsmedium confidence
with trivial between group effect sizes observed comparing 4-6 vs. 7-9 RPE (g = -0.12 [-0.33-0.10])
Why this rating
Based on study design from abstract.
Source
Effect Of Proximity To Failure During Resistance Training On Squat Strength
Caitlyn M. Meehan et al. · Medicine & Science in Sports & Exercise · 2023
DOI 10.1249/01.mss.0000984784.03878.ec
other · n=19
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Both training programs (4-6 RPE and 7-9 RPE) resulted in increases in back squat one-repetition maximum (1RM), with the 4-6 RPE group increasing by +13.78 kg and the 7-9 RPE group increasing by +18.05 kg.Strong
- The findings regarding back squat strength improvements between resistance training with 4-6 RPE and 7-9 RPE are statistically inconclusive.Strong
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