Except he then somehow miraculously recovered without explanation. There was that strength-enhancing gizmo he wore on his knee in an early scene, but that doesn't explain why he was able to get back into perfect fighting form in that Mideastern prison with nothing but willpower. So they paid lip service to realism early on and then threw it out the window.
I chalked that up as being temporary and most likely pushing himself beyond his limits. If he'd kept it up long-term, he would have come apart at the seams. YMMV.
Would you accept it if I said "more lip service to realism" in place of "higher level of realism"?
And still more lip service than I bet they pay to Superman or the Justice League.