Izzy Mandelbaum has nothing on Vern from Haines City, Florida.
Vern celebrated his 90th birthday by performing 24 pullups, according to the YouTube description written by his son.
If Vern's range of motion seems somewhat limited, it's because his elbows were broken when he was a kid.
Regardless, you have to be impressed with his effort at 90 to even attempt pullups.
On top of that, his Twitter handle is pretty catchy: VernyBoyG.