So THIS is why they say to never lockout on the leg press (WARNING: GRAPHIC)

DoYouEvenLift

GRAPHIC!

GRAPHIC!

GRAPHIC!


Don't watch if you find leg breaks disgusting! You've been warned.

https://www.youtube.com/watch?v=vkKJ4KFnklI

I've only done leg presses a few times but I'll probably never be doing them again because it wouldn't be worthwhile with how cautious and scared I'd be now. I actually did lockout when I did them and had no idea this could happen, didn't even cross my mind to be honest...actually yeah, I'm never doing them again lol.

Golaco

Urgh! The first couple of reps look easy and then SNAP!!

She should stick to doing air squats while holding a couple of bottles of water. Gyms are death traps...

Cuddlesworth

The thing is going up and down on its own, must be some sort of physiotherapy device that you can vary the resistance on the fly. She locked her legs out and the motor drove both knees back. I'm going to assume the seating position should have been adjusted to not let the legs lock out.

JJayoo

Well that was awful

Mellor

DoYouEvenLift wrote: »

I've only done leg presses a few times but I'll probably never be doing them again because it wouldn't be worthwhile with how cautious and scared I'd be now. I actually did lockout when I did them and had no idea this could happen, didn't even cross my mind to be honest...actually yeah, I'm never doing them again lol.

It looks like the machine is moving on its own. The speed is really smooth and constant, even after the break. I can't be sure obviously, but that's what its looks like to me.
There no way a 30kg or so leg press could hyper extend a knee like that. Or else it would be happening all the time. Squat, deadlift, picking up shopping, carrying a child. etc

The idea of not locking out is to do with muscle tension. Not the load catastrophically hyper-extending your knees. This video is going to cause a lot of myths and bull**** to spread. I've seen all sorts of nonsense being posted already on reddit and such.

DoYouEvenLift

Mellor wrote: »

It looks like the machine is moving on its own. The speed is really smooth and constant, even after the break. I can't be sure obviously, but that's what its looks like to me.
There no way a 30kg or so leg press could hyper extend a knee like that. Or else it would be happening all the time. Squat, deadlift, picking up shopping, carrying a child. etc

The idea of not locking out is to do with muscle tension. Not the load catastrophically hyper-extending your knees. This video is going to cause a lot of myths and bull**** to spread. I've seen all sorts of nonsense being posted already.

Hey, maybe she just has a calcium deficiency

Mellor

DoYouEvenLift wrote: »

Hey, maybe she just has a calcium deficiency

Yeah of course. She could be post op on a full knee reconstruction which made the joint super weak.
The movement of the seat just looked very uniform.

Cuddlesworth

Mellor wrote: »

Yeah of course. She could be post op on a full knee reconstruction which made the joint super weak.
The movement of the seat just looked very uniform.

If you watch right up to the last couple of miliseconds, the device starts going back up with the broken knees and no assistance. It was definitely on a motor.

Lago

It looked like a puppets legs bending. Surely a pair of healthy knees can't hyperextend like that with such little force being applied?

Cuddlesworth

Lago wrote: »

It looked like a puppets legs bending. Surely a pair of healthy knees can't hyperextend like that with such little force being applied?

Who says its a little amount of force? If its a physio therapy device then it would have to be rated to move at least 350 kilos now days.

Lago

Cuddlesworth wrote: »

Who says its a little amount of force? If its a physio therapy device then it would have to be rated to move at least 350 kilos now days.

Well no one but, as others have said, she was moving it fairly comfortably and if it was on a motor why would a physiotherapist put 350kg or any high number of pressure on it? You'd just be asking for an injury even if this one was extremely unlikely.

Cuddlesworth

Lago wrote: »

Well no one but, as others have said, she was moving it fairly comfortably and if it was on a motor why would a physiotherapist put 350kg or any high number of pressure on it? You'd just be asking for an injury even if this one was extremely unlikely.

What I can see is,

It goes up and down on its own
It simulates a squat
It is capable of a huge amount of force

An educated guess here is that its a physiotherapy device for obese people. I would guess you could vary the motor strength, so a grossly overweight person can sit on it and do resistance squats without taking their full weight. Or its for short term comatose/paralyzed people to try stop muscle damage. Huge design flaw either way.

Alf Veedersane

If you've seen Maximum Overdrive, this is not a surprise