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TRPreacher curls vs incline curls isn’t just “which one burns more” @helms3dmj
Dr. Eric Helms breaks down why the setup changes what gets emphasized.
The brachialis sits underneath the biceps, crosses only the elbow, and does not care where your shoulder is.
So for brachialis tension, what matters most is when the weight is furthest from the elbow.
That’s why preacher curls can be brutal in that mid range position.
But the biceps cross the shoulder too, meaning shoulder position does matter.
Incline curls place the biceps in a more lengthened position, which may explain why studies show more biceps growth there.
Preacher curls may bias more distal brachialis growth.
Incline curls may bias more biceps growth.
Different tools.
Different stimulus.
Use both if you want full arm development.
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