how many pull ups do you have to do to achieve abdominal hypertrophy?
>>35271119
At least two
>>35271119
All pullups work abs. Strict hollow position pullups are better than dangly wacky legs pullups, though. Weighted using a belt and not a vest seem to always give me a little ab doms the next day.
>>35271126
>tfw can do 3
>>35271119
shopped abs
>>35271162
Serves her right for trying to cheat.
Pull-up, not jump up.
>>35271162
I used to have that same bar. she's clearly missing some pieces.
>>35271162
I have those door frame pull up bars, the one that you hang on top. My gf came by and was not convinced whether it was stable, even though I showed her that I could easily do pull ups without any problems. She said
>Right, but what if you pulled down as hard as you can, the door frame would rip off, wouldn't it?
I took the bar and did another pull up. She said "No, you are doing pull ups again, I meant that you should pull the bar down!"
Admittedly, she was always really shitty at physics.
>>35272429
Obviously you had to nail your feet to the ground first, your girlfriend must think you're an idiot.
>>35272429
>F == ma
Even assuming your mass being constant, you could still increase the force exerted on the bar by increasing your acceleration.
>>35272429
I think she meant suddenly jerking the bar as hard as you can instead of smoothly pulling yourself up.
