True or false most pro boxers dont pivot the foot they push off it?

[BCBUD]

Scrap is Mike Tyson pushing off the jab or is he pivoting? We all trust you since this your style you're the expert.

Its not my style, though I appreciate it. But its a good technique for a short Heavy,who can punch. Not many other weights are successful with it.

Push or twist?

Push down and twist.

Why push down AND twist? Isnt there enough weight on your foot from gravity if youve channeled it all onto one foot? Why the need to push down as well?

Newtons 3rd law, and youre doing it with both feet,

Frictions the key.

Kinda like sprinting.