They suck. For me, they came beginning the 3rd week and
I don't even do squats or dead lifts. 8 sets of bicep preacher curls had me crying.
This was from picking the bar off the ground, all legs mind you. 20 minutes later, after my work out, I couldn't even stand to make my son a sandwich. After this, 15 minutes of rest on the couch made them go away as fast as they came.