What causes the habit of crunching joints
Experts from the University of Alberta (Canada) to engage seriously investigate the issue, according to PLoS ONE. Using video footage during magnetic resonance imaging (MRI), the researchers noted that the reason for the crunch is rapidly emerging in the joint cavity.
Gregory Kavchuk colleagues used a cable that slowly pulled the human fingers during joint imaging. "Scan does not allow to understand the mechanism of occurrence of sound, but like all the sounds crunch should occur in the production of energy, which leads to vibrations propagating through the air," - says Gregory Kavchuk.
Anyone familiar crunch, which may issue joints from the toes to the knees and jaw. Therefore, most have heard that wont crunch can cause arthritis. Perhaps this is one of the myths, which is far from reality.
In many joints there are small pockets or sinuses, which are filled with synovial fluid. Synovial fluid lubricates the joint surfaces and allows the articular cartilage is well slide.
When we pull up or turn your fingers, there is an expansion joint gap and creates a negative pressure in the joints. This synovial fluid rapidly absorbed from the pockets in the joint space. This sudden influx of fluid leads to a typical crunch sound.
So whether it is harmful?
Almost certainly not, scientists claim. Numerous studies have tried to find a link between the habit of crunching the fingers in patients with arthritis and healthy people. They found no evidence that such people are more likely to suffer from arthritis.
Scientists are studying this question decades since 1947, when British researchers have for the first time put forward the theory of the formation of bubbles in the joint as a possible cause. In 1970, it was thought that the destruction of bubbles is the cause of the crunch.
In 1998, a California doctor Donald Unger reported on the 50-year-old self-study, during which he was at least two times a day crunched knuckles on his left hand, and ever crunched on the right. In his letter to the editor of the journal "Arthritis & Rheumatism" Unger wrote that on one of his hands he did not develop arthritis, and there were no obvious differences between the hands.
So, you can crunch and nothing to fear? - Not really.
The habit of crunching the fingers can lead to other consequences. In a study of 300 people aged 45 years and older who have had this habit, the researchers found no association with arthritis. However, these people have a good chance that the swelling can occur on the hands and reduced grip strength of the hand joints.
So if you can not get rid of the annoying habits, do so rarely and carefully.
Gregory Kavchuk colleagues used a cable that slowly pulled the human fingers during joint imaging. "Scan does not allow to understand the mechanism of occurrence of sound, but like all the sounds crunch should occur in the production of energy, which leads to vibrations propagating through the air," - says Gregory Kavchuk.
Anyone familiar crunch, which may issue joints from the toes to the knees and jaw. Therefore, most have heard that wont crunch can cause arthritis. Perhaps this is one of the myths, which is far from reality.
In many joints there are small pockets or sinuses, which are filled with synovial fluid. Synovial fluid lubricates the joint surfaces and allows the articular cartilage is well slide.
When we pull up or turn your fingers, there is an expansion joint gap and creates a negative pressure in the joints. This synovial fluid rapidly absorbed from the pockets in the joint space. This sudden influx of fluid leads to a typical crunch sound.
So whether it is harmful?
Almost certainly not, scientists claim. Numerous studies have tried to find a link between the habit of crunching the fingers in patients with arthritis and healthy people. They found no evidence that such people are more likely to suffer from arthritis.
Scientists are studying this question decades since 1947, when British researchers have for the first time put forward the theory of the formation of bubbles in the joint as a possible cause. In 1970, it was thought that the destruction of bubbles is the cause of the crunch.
In 1998, a California doctor Donald Unger reported on the 50-year-old self-study, during which he was at least two times a day crunched knuckles on his left hand, and ever crunched on the right. In his letter to the editor of the journal "Arthritis & Rheumatism" Unger wrote that on one of his hands he did not develop arthritis, and there were no obvious differences between the hands.
So, you can crunch and nothing to fear? - Not really.
The habit of crunching the fingers can lead to other consequences. In a study of 300 people aged 45 years and older who have had this habit, the researchers found no association with arthritis. However, these people have a good chance that the swelling can occur on the hands and reduced grip strength of the hand joints.
So if you can not get rid of the annoying habits, do so rarely and carefully.