Muscle Control: Bicep Shake

Rarity: Extremely rare

The equivalent of pec shake for the bicep control skill, bicep shake is an extremely fast bicep bounce with non-fully-relaxed biceps as the starting point.

In Bicep Shake, the biceps are bouncing at extremely fast speed, resulting in a vibration/shake effect. What distinguishes the bicep shake from a rapid bicep bounce is that the contractions are so fast that the biceps do not have time to fully relax to their relaxed position. The relax position for a bicep shake is the position where the bicep is half-contracted in a normal bicep bounce/flex.

While short GIF footage of this control exists, copyright disallows us the upload.