Vacuums do anything or it's just a meme? Is it worth to do them?
Getting this mad because you got fucking REKT.
Eat a bullet you pathetic beta loser
Found it and stayed here apparently. Thats really autistic, you imbecile. Not even the anon you are replying to.
THAT SHIT IS SO WORTHLESS I DON'T EVEN KNOW WHAT TO SAY.
SURE ANY STRAIN TO THE POINT OF BREAKING DOWN MUSCLE TISSUE WILL CAUSE MUSCLES TO GROW SO IT DOES WORK JUST LIKE ANYTHING ELSE
BUT IT WOULD BE MUCH MORE EFFECTIVE TO DO SIT UPS BECAUSE YOU WOULD BE USING MORE MUSCLE GROUPS.
PIANO IS LIKE 95% DOPE SO CONSIDER THE BRO SCIENCE
it's not for muscle growth, it just makes your muscles more stiff and tense to make your waist looks smaller without flexing
wow what a terrible thread.
As a former fatty, I can pretty much suck my gut in and hold it all day, can't really say there's any appreciable benefit beside looking less fat with a shirt on.
It does weaken your spinal column so don't do it while lifting