According come the internet, you have the right to break a clavicle by using just seven pounds of force. I understand it’s a pretty usual fracture, however seven pounds appears suspiciously low; the slightly much less than the weight of a gallon of water.
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Where ~ above the clavicle, and in what direction, can I use seven pounds of force in bespeak to break it?
When i was 10, I broke my left clavicle once tackled playing football (without any padding and also the last play the the day). My medical professional commented it might be broken moving by motioning his outstretched hand in a not-very-fast downward chop.
No this is false. You deserve to rest a twenty pound load on your collar bone, lift a similar weight, etc without breaking it obviously.
It is true the collar bone is relatively fragile. The reasons for why this could be space a matter of part debate. Biomechanics studies (orthopedists love biomech studies) suggest that over 1500N are compelled in axial load. Tension, shear, and twisting pressures will decrease this in one unpredictable method (the clavicle has actually a fairly irregular shape) but it’s far much more than 7 lbs.
Really_Not_All_That_Bright in march 1, 2016, 8:09pm #5
The clavicle is lot stronger than that sort of story would lead you come believe. It creates the major part the the top extremity indistinguishable of the pelvic girdle, so extensively speaking the is sort of a pelvis. And also the pelvis is really strong. That course, the scapular girdle is not virtually as solid as the pelvis in humans due to the fact that we nothing walk on our hands, yet we’re no that far removed from animals who do.
As a basic rule, bone is very solid against compression and an extremely weak in anxiety (which is the opposite sample to ours connective tissues). For this reason the easiest way to rest a clavicle is more than likely to pull it except the ends v some shearing pressure added.
Machine_Elf march 1, 2016, 9:47pm #6
Biomechanics researches (orthopedists love biomech studies) indicate that end 1500N are forced in axial load.
Which is much more like 337 pounds.
Tension, shear, and also twisting forces will decrease this in one unpredictable method (the clavicle has actually a relatively irregular shape) yet it’s far an ext than 7 lbs.
OK, therefore “7 pounds to rest a clavicle” is type of choose “a duck’s quack doesn’t echo, and also no one knows why”, i.e. The an apocryphal bullshit factoid the keeps acquiring passed about without refutation. Thanks!
SpeedwayRyan march 2, 2016, 3:51pm #7
At around age 13, I broke mine through dropping a gallon of ice cream cream on it. Ns was placing a bucket of ice cream earlier in the freezer as soon as it slipped out of mine hands and also the edge hit my clavicle. It wasn’t badly broken, however it was bad enough I had actually to undertake an stroked nerves brace for numerous weeks while that healed. The gallon of ice cream cream most likely weighs 6-8 pounds and also dropped probably much less than a foot prior to striking the bone, so it’s definitely true that it no take lot force, assuming that it’s used in simply the best spot in simply the appropriate way.
Gary_T march 2, 2016, 4:19pm #8
In the middle of this discussion, i wonder whose clavicle? A five-year-old’s? A 12-year-old’s? A 25-year-old’s? A 95-year-old’s? appears to me there could be some significant differences.
doorhinge march 2, 2016, 5:44pm #9
The clavicle screams “Break me! break me!”. It has actually no defense to speak of; there’s simply a thin layer that skin between it and the exterior world. Additionally, both end of the bone are relatively immobile. A downward strike come the clavicle is (mostly) transmitted come the spinal obelisk by means of the sternum, scapula, and ribs. The spine is particularly configured to protest this kind of compressive force and provides exactly the kind of resistance needed to do such a win effective.
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I’m no sure exactly how these alleged medical sources tested the clavicle come it’s breaking point. 7 pounds every square customs could, if it’s used in the most reliable manner, rest a bone the size of a clavicle. However who’s clavicle? one NFL protective tackle? more than likely not. A 130 lb bookworm? Probably. An average medical cadaver indigenous India? Possibly.
The pointy finish of a 6 pound blacksmith sledge hammer
wouldn’t require lot speed to cracked a bone. When the bones of a forearm are totally free to swing away from a 7 psi strike, the clavicle is supported at both ends and also held ridged through the chest and also spine.
Blue_Blistering_Barnacle march 2, 2016, 6:11pm #10
Bruce Lee might break your clavicle just by looking in ~ it. While the is true that his equal does not exist today, adept practioners the OS-do can fracture smaller bones (such as the hyoid) by deftly and firmly depressing a mix of secrets on a typical keyboard. I don’t know which keys, exactly, but I’m pretty certain that one of them is CTRL.
Actually, IRL, healthy and balanced bones are an extremely strong, however it have the right to be exceptional how often bones sustain significant stresses without breaking, however fail against reasonably minor trauma presented simply the dorn way.
aux203 march 3, 2016, 5:30pm #11
The clavicle is lot stronger 보다 that kind of story would lead you to believe. It develops the major part the the upper extremity indistinguishable of the pelvic girdle, so extensively speaking it is kind of a pelvis. And also the pelvis is yes, really strong. Of course, the scapular girdle is not nearly as solid as the pelvis in humans since we nothing walk on our hands, however we’re no that far removed from pets who do.
As a general rule, bone is very strong against compression and really weak in anxiety (which is the opposite sample to our connective tissues). Therefore the easiest way to rest a clavicle is probably to traction it except the ends v some shearing force added.
What on earth?!? Literally none of what you created is true.
The shoulder girdle is certain nothing choose the pelvis and also it works an extremely differently indigenous a functional and anatomic perspective. This is true even in quadrapeds. At finest you can say they space both joints. That’s about it.
Bone is a type of connective tissue.
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Bone is slightly stronger in compression than tension yet the two are quite similar when it involves ultimate productivity strength. The idea the bone is weak in stress and anxiety is ludicrous. If girlfriend pulling a bone except the end (?!?) is simpler than applying some lateral stress, you are insane.