Does shoulder position affect biceps activation during the lowering phase of a bicep curl?

Bicep Curl Form1 min readUpdated May 30, 2026

What the Evidence Shows

We analyzed the available evidence on shoulder position and biceps activation during the lowering phase of a bicep curl, and what we’ve found so far suggests that shoulder position may influence how much the biceps are engaged. Specifically, when the arms hang straight down at the start of the...

Evidence from Studies

Supporting (0)
No supporting evidence found
Contradicting (0)
No contradicting evidence found
Primary Studies (1)

Bilateral Biceps Curl Shows Distinct Biceps Brachii and Anterior Deltoid Excitation Comparing Straight vs. EZ Barbell Coupled with Arms Flexion/No-Flexion

DOI: 10.3390/jfmk8010013

Update History

Published
May 30, 2026·Last updated May 30, 2026
  • Invalid DateNew topic created from assertion

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