[jonnycoder]

He says he has a hard time beating his feather in arm wrestling despite him working out. Anecdotally blue collar people have much strong wrist flexion (cupping) than us white collar people, but pronation and technique can help negate that. My experience shows that power cleans can help with arm wrestling but not many people do those.

[loeg]

Yeah, arm-wrestling is kind of a specific skill that isn't covered by most "exercise" (including strength training) unless you are specifically focused on it. It's like notorious for skinny-looking specialists being able to best jacked non-specialists.