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>>35378274
Because it keeps your back flat (which is stupid anyway).

It's reasonable when doing an incline bench press to put your feet up on a box or something. When I do incline bench I try to keep my back flat, but I always end up arching my back as I start to push, making it easier and cheating. Putting your feet up prevents it.

If you have a mental disability, very low IQ or bodytourettes, you might be unable to stop yourself from using legdrive while benching - which is unfavourable if you just want to target the chest/triceps.

Other than that I have absolutely no idea.

>>35378274
Putting your feet up and holding them like a woman getting a pap smear?
No idea
Putting your feet on the bench can make a decent accessory bench for focusing arm strength

Quality thread desu

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It's like when people do abs on the bench press bench baka

>>35377939
But does it make it easier or harder to bench? Can you bench more kg with your legs up?

>>35378274
I do it regularly. For me it's kind of an accessory exercise. Some say it's supposed to activate chest more. Only way I see it doing that is not using legs causes you to have lower arch increasing ROM. Legs up also needs you to focus more on stabilization without using legs. Also what >>35378329 said. Of course I'm not an expert and my experience is subjective but hope that answers some questions.

I used to do it

For some reason benching used to give me sick lower back pain from the arch. Putting my legs up kept it flat and there was no pain

One day I tried regular form again and felt fine

>>35378864
Your hip flexors were probably too tight.

>>35378328
>purposefully causing lordosis
why

>>35378274
The idea is to help squeeze out a nice liquidy shit all over the bench with each rep.

Fuck if I know, that looks retarded.