The Claim
In young women participating in an 8-week resistance training program performed twice weekly, preacher biceps curls lead to greater increases in distal elbow flexor muscle thickness compared to incline biceps curls, with a mean difference of 0.10 cm (95% CI: 0.04, 0.15 cm), suggesting that the mechanical positioning of the preacher curl may preferentially stimulate distal biceps hypertrophy.
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.
For young women doing strength training twice a week, preacher curls might build more muscle in the lower part of the biceps than incline curls.
See the scientific wording
In young women undergoing 8 weeks of resistance training twice weekly, preacher biceps curls are associated with greater increases in distal elbow flexor muscle thickness compared to incline biceps curls, with a mean difference of 0.10 cm (95% CI: 0.04, 0.15 cm), indicating that distal biceps hypertrophy may be preferentially stimulated by preacher curl mechanics.
What the research says
1 studyStudy: Distinct muscle growth and strength adaptations after preacher and incline biceps curls
The study found that preacher curls increased lower biceps size more than incline curls in young women after 8 weeks, just like the claim says.
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.