"One of Lt Murphy's favorite workouts was running a mile, then doing 100 pull ups, 200 push ups, 300 squats, and then running another mile -- all while wearing a 20lb weighted pack," Zuckerberg wrote. The Meta CEO posted a mirror selfie of himself glistening with sweat, still wearing his weighted pack. , getting in on the push-ups.
In a reply on the comments section of his post, Zuckerberg admitted that the last mile run of the challenge can be"pretty brutal," especially"when your legs are torched from the squats and your heart rate is pegged." "There are a few different ways people do this. The most hardcore is called Rx and those people do the 100 pull ups, then 200 push ups, and then the 300 squats sequentially," Zuckerberg wrote in a comment on his post on Monday.