The Claim
Peak and integrated surface electromyography (sEMG) of the biceps brachii show no significant differences between preacher curls and inclined curls when performed to muscle failure at 70% of one-repetition maximum (1RM), suggesting similar overall neuromuscular activation patterns between these two exercises.
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.
Whether you do preacher curls or inclined curls, your biceps muscles activate in pretty much the same way if you're using a moderate weight and pushing to failure. Basically, the 'effort' your muscles put in is similar for both exercises.
See the scientific wording
Peak and integrated surface electromyography (sEMG) of the biceps brachii show no significant differences between preacher curls and inclined curls when performed to muscle failure at 70% 1RM, indicating similar overall neuromuscular activation patterns across these two biceps exercises despite potential differences in regional muscle growth.
What the research says
1 studyStudy: Regional hypertrophy of muscle cannot be predicted by surface electromyography
The study found that both curl exercises activate the biceps muscles similarly, even though they might build muscle in slightly different areas. This matches the claim that the overall muscle activity is about the same for both exercises.
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.