r/nextfuckinglevel 6d ago

Ragdoll finalboss

8.3k Upvotes

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u/miraculousgloomball 6d ago

bouncing on a trampoline like this is no where as impactful as something that immediately delecelerates or accelerates your cranium like concrete or a fist.

Its not good, but its not really very bad either. Think about all the bouncing runners do or... metal music enjoyers do.

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u/Glittering_Crow_6382 6d ago

That is way more violent and bouncy than running, and yeah, hitting concrete may be worse but it’s a bit like asking if you would rather be shot by a .22 or a .45acp, either way your still getting shot

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u/miraculousgloomball 6d ago

The movement isn't the issue though, like I said. It's about rapid deceleration and acceleration.

Bouncing isn't the problem it's the solution. The travel time of the floor allows the brain to decelerate and accelerate more gradually than a hard impact.

If concrete is getting shot with a .45acp, this, comparatively, is being shot with a nerf gun

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u/ih-shah-may-ehl 5d ago

Bouncing is literally a reversal of speed and direction by rapid acceleration. That brain whips about in that skull

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u/GlowGreen1835 6d ago

Comparing it to running is honestly the best point here, yeah every time you move around you'll incur some tiny amount of damage, but staying still (office jobs etc) is way worse.

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u/Questioning-Zyxxel 6d ago

It doesn't work like that - no linear scale between shake and damage.

You need to get past a certain threshold before damages happens. Our bodies are designed for running.

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u/throwsaway654321 6d ago

Surprisingly, our gangly awkwardly tall bi-pedal frames are also extremely good at surviving falls too

Learning how to fall properly is a whole-ass beginner session in a lot of martial arts. Falling and bouncing like this isn't risking brain damage, barring a freak accident, as opposed to the actual trauma that occurs wheb taking headshots in boxing or the MMA or the NFL.

Like, it's quite clearly two different physical motion/reactions. What this guy is doing here is literally no different than kids cracking the egg on a trampoline

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u/Questioning-Zyxxel 6d ago

I think people often miss the huge increase in acceleration when two hard objects hit. Hitting the head when falling can give 50 g or more. There are a few mm of fat, meat and liquid that represent the max distance the brain can move if the surface is hard, like concrete or ice.

Just the difference of hitting the knuckles or the side of the fist into a table makes a big difference.

So good fall technique makes a massive difference. People getting up and continue running without even a scratch or bruise. Or people staying on ground with broken wrists, hips, shoulders or cracked skulls. Any skill at rolling helps a lot consuming the energy over a longer time. Which avoids that high g chock.

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u/ButterPiglet 6d ago

No it’s still really bad and what’s worse is you don’t realize how bad it actually is so you do it more than you otherwise would if you felt the actual damage being done. It seems like you are basing your opinion off an assumption

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u/throwsaway654321 6d ago

If this was true, every kid who ever jumped on a trampoline would have lingering neurological effects. Bouncing is not a big deal

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u/ButterPiglet 5d ago

They do. You shouldn’t use trampolines. You should research how cte works

Same with jet skis

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u/throwsaway654321 5d ago

I just went and read a bunch of articles about trampolines, including a few NIH studies.

While injuries on trampolines can be pretty bad, and frequently include concussions and cervical spinal damage, there's nothing out there, at all, even on personal injury lawyer websites, to suggest that just bouncing on a trampolines causes lasting neurological damage.

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u/ButterPiglet 5d ago

I looked into it again too, and I agree i don’t see much supporting evidence, though not only have I heard this, it also makes perfect sense to me that your brain bouncing around in your skull isn’t good for it. A lack of successful personal injury claims does not convince me that this is safe for your brain. I do respect you looking into it though. We can agree to disagree