Why are flying knees more devastating than kicks?

Intermission said:
Long time martial artists claim there has never been bone breaks done like that by flying knees.
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You mean you?

Cub Swanson had to pull out of a fight last minute a few years ago due to a skull fracture from a knee in training camp.

Not even flying just clinch knee to the head. He said that his Dr in the ER claimed the xray looked like someone who had been hit in the head by a baseball bat.

You can 100% break bones with a knee to the head. It has happened. You're an idiot.
 
kingghidrah said:
The knee is 100x harder than the shin. The shin is weak and breakable. The knee is impervious to harm when the leg is "closed" (obviously when the leg is extended there are all sorts of vulnerabilities to the knee area)
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I broke my patella into 3 pieces. :mad:
 
shunyata said:
You mean you?

Cub Swanson had to pull out of a fight last minute a few years ago due to a skull fracture from a knee in training camp.

Not even flying just clinch knee to the head. He said that his Dr in the ER claimed the xray looked like someone who had been hit in the head by a baseball bat.

You can 100% break bones with a knee to the head. It has happened. You're an idiot.
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I edited the post. I meant it has never happened by kicks, just Knees.

Did you actually Read My topic title?
 
Intermission said:
Did anyone think prior to the UFC that flying knees had more bone crunching potential than kicks?
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I don't think they do. I'd rather take a flying knee from Ubereem than a step-in knee, I'd want Wand and Anderson jumping to knee me rather than wrap me up in a plum and start kneeing away, and I'd rather knees from anyone than kicks from Cro Cop or Pedro Rizzo or Bas Rutten...

Intermission said:
What is it about them that are so venomous compared to kicks?
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The surprise element is a big part of it, as is the frequency of them landing on people already ducking into them for TDs. As they say, it's the shot you don't see that hurts the most. Even so, Hansen's humongous knee on the sliding Imanari or Franca's knees on the shooting Sherk seemed to have way more power to them because Hansen and Franca were planted on the ground instead of jumping in the air.



I don't imagine that would've been worse had Hansen jumped.
 
Intermission said:
I edited the post. I meant it has never happened by kicks, just Knees.

Did you actually Read My topic title?
Click to expand...

You're quoted for posterity.

To answer your thread title would you rather get hit by a fastball to the head or a bat to the head?

Mass matters, with knee strikes we're basically clubbing the guy with the end of the femur (biggest bone in the body).

Then there's the fact that knee strikes are often a head on collision, we're pulling the head into the strike with a clinch or hitting it when the opponent is diving in.
 
Mass x velocity.
Spinning kick may have more velocity but lacks full body mass.
Flying knee has full body mass but less velocity.
 
Think of the leg more like a long fishing rod.
If you hit someone with the tip it will whip them pretty good but since it's more flexible there's less momentum transfer. In a kick your knee is extended and your foot hits but your ankle and knee will flex and transfer less energy.
If you pull the rod apart and smack someone with the bottom half there will be less speed but more energy transfer due to it not being flexible. Your knee is a direct transfer of energy because there isn't any flex between your hip and knee so all the momentum and energy is transferred to the target.
 
Norcim said:
. Your knee is a direct transfer of energy because there isn't any flex between your hip and knee so all the momentum and energy is transferred to the target.
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why would the flex cause a disrupture? If you have the flexibility there is no resistance. Also the hip/hamstring imposes limits on how you can push your knee forward.
 
Bullitt68 said:
I don't think they do. I'd rather take a flying knee from Ubereem than a step-in knee, I'd want Wand and Anderson jumping to knee me rather than wrap me up in a plum and start kneeing away, and I'd rather knees from anyone than kicks from Cro Cop or Pedro Rizzo or Bas Rutten...



The surprise element is a big part of it, as is the frequency of them landing on people already ducking into them for TDs. As they say, it's the shot you don't see that hurts the most. Even so, Hansen's humongous knee on the sliding Imanari or Franca's knees on the shooting Sherk seemed to have way more power to them because Hansen and Franca were planted on the ground instead of jumping in the air.



I don't imagine that would've been worse had Hansen jumped.
Click to expand...


no kick has ever caused this
 
1. There is a chance of injuring your shin and foot when kicking. I think psychologically this might prevent you from throwing it as hard as your body is capable. Whereas your knee you can throw with reckless abandon.

2. With kicks, you often catch someone staying still or moving away. But with knees you often catch them when their head is moving into the direction of your knee, which doubles the impact. Like when they're going for a takedown, or when you have a hold of their head and you pull it into your knee.

3. Your knee is closer to your center mass. So it's like swinging a heavier object than when you kick.
 
They are both pretty bad. It's like battering ram vs baseball bat
 
Intermission said:
no kick has ever caused this
Click to expand...


True. But by the same token, people like to knee the thigh in close, yet no knee to the leg has ever caused a dent in the quad like what Rizzo did to Couture or a fractured leg like what Cro Cop did to Yoshida. It's a combination of a lot of factors, not simply this strike versus that strike.
 
Physics.

kingghidrah said:
There isn't an area on the body more impervious to harm than a closed knee or elbow.
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Top of Skull. Skull okay, brain hurty.

Intermission said:
Long time martial artists claim there has never been bone breaks done like by flying knees
Click to expand...
I've literally seen it happen both in professional fights and at my gym.
{<huh}
 
Flying knees do very little damage most of the time.

It's kind of all or nothing. They just don't get talked about when they land and don't do damage or partially land or miss.
 
I never seen a knee do what Uriah Halls spin kick did to that Ultimate Fighter.

Knees are just easier to land.
 
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