yue
Exponent
- Joined
- Dec 9, 2021
- Posts
- 284
- Reputation
- 337
The name brings to mind a caveman smashing his face with a rock. I honestly think the name is why it's such a polarizing technique. Rather, it is one of the most well-established techniques.
Most of you are aware of Wolff's Law, which is very vague and simply states that bone adapts to loads, most sources are vague on whether this adaption is in width or density. We are of course interested in width, increasing the volume of bone.
Appositional growth is exactly that, an increase in width due to load.
Even though bones stop growing in length in early adulthood, they can continue to increase in thickness or diameter throughout life in response to stress from increased muscle activity or to weight. The increase in diameter is called appositional growth. Osteoblasts in the periosteum form compact bone around the external bone surface. At the same time, osteoclasts in the endosteum break down bone on the internal bone surface, around the medullary cavity. These two processes together increase the diameter of the bone and, at the same time, keep the bone from becoming excessively heavy and bulky.
Different bones respond differently. Force to facial bones is actually pretty rare in the day to day, the only people who see that kind of force are professional fighters and some contact sport athletes. Anecdotally speaking, these people usually have more bone mass in their face.
Now this load to facial bones could be done in several different ways. The most common, and the one that comes to mind when hearing bone smashing is to just strike the face. I would argue though that striking is unnecessary, rather force could be applied just as effectively from a clamping or rubbing motion. Making the "smashing" part of bonesmashing a misnomer.
Most of you are aware of Wolff's Law, which is very vague and simply states that bone adapts to loads, most sources are vague on whether this adaption is in width or density. We are of course interested in width, increasing the volume of bone.
Appositional growth is exactly that, an increase in width due to load.
Even though bones stop growing in length in early adulthood, they can continue to increase in thickness or diameter throughout life in response to stress from increased muscle activity or to weight. The increase in diameter is called appositional growth. Osteoblasts in the periosteum form compact bone around the external bone surface. At the same time, osteoclasts in the endosteum break down bone on the internal bone surface, around the medullary cavity. These two processes together increase the diameter of the bone and, at the same time, keep the bone from becoming excessively heavy and bulky.
Different bones respond differently. Force to facial bones is actually pretty rare in the day to day, the only people who see that kind of force are professional fighters and some contact sport athletes. Anecdotally speaking, these people usually have more bone mass in their face.
Now this load to facial bones could be done in several different ways. The most common, and the one that comes to mind when hearing bone smashing is to just strike the face. I would argue though that striking is unnecessary, rather force could be applied just as effectively from a clamping or rubbing motion. Making the "smashing" part of bonesmashing a misnomer.
