That's 5.56 full extension punches every second.
Russian boxer and biological punching machine Pavel Trusov secured a Guinness World Record at a gym in Slovakia last year in this amazing display.
I notice that for the first half of the event, he appears to be breathing entirely through his nose. I wonder why. Would mouth breathing be slower even though it would take in more air?
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He's holding his breath. Just like sprinting, you take a big breath at the start and then don't waste any more energy changing your lungs and diaphragm.
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