We all know of Ed Whitlock's age-related feats of endurance, but how about David Goggins and the numerous ultras and other feats of endurance, including the pullup test, that he does?
David also runs from 110 to 130 miles a week. I posted the video on another thread where he mentioned those numbers.
Also, David's vVO2 max was measured at 91 ml/kg2.
So, who is more impressive of the two?