I took a pitch off my left wrist when I was 18 and ever since then I have pain in my left wrist (in the same spot as your second pic) when I do regular wrist curls. I can do the standing, behind the back version with no pain though.
I’m not convinced the standing version is more effective, but I sure can use a shitload more weight than I can with the regular version. I’ll take that as a trade off for the reduced range of motion.
If you have pain, then you do what you can to train around it.[/quote]
I have broken both wrists while skateboarding.
I wonder why only that movement causes pain in that one small area?