[Oleophobic]

Hi guys,

I noticed that when I flex my arm into a bicep curl, then straighten my arm out, they shake. Does anyone know if this is a cause for concern? I am considering visiting my doctor but was curious to know if other people had similar issues?
I'm 29 and workout 4x a week and never really noticed this until recently when flexing in front of the mirror (lol)...

[Oleophobic]

I guess not too many people know

then can you guys try flexing your bicep and then while keeping tension in the arm, straighten your arm out. Does your arm shake a bit when you extend your arm?

[van19]

Flexing the bicep then straightening the arm while trying to keep bicep tension there, my arm shakes too. I think it's normal.