brachioradialis and brachialis pain/soreness

[lovbyts]

Due to a couple of eye surgeries and screwing up my left shoulder and having surgery almost 2 months ago I am slowly getting back into lifting after to long being off. I was never off 100% but not able to lift like I should.

I am of course starting slow and light but I am experiencing something I have noticed quite a bit the last 1 1/2 if not longer. Most of the time when I do curls I get really sore in the brachioradialis and brachialis more so than the biceps. It usually last 5+ days if not longer. I massage them, use NSAIDs and different creams to reduce the pain.

It doesn't seem to matter if I use dumbbells, cable, straight bar or ez curl bar. Why is this hitting the brachioradialis and brachialis more than it is the bicep? Yes it's both arms, not just the one I had surgery on and yes my form is very good and I do my curls very slow. Maybe I'm extending to far? I have also tried to experiment with not extending 100% but that didn't seem to make a difference.