FROM OUR EXPERTS
Human beings are well designed for many things. We have large brains for poetry and quantum mechanics; we are good long distance runners, and of course have these awesome opposable thumbs. Unfortunately, some parts are not designed very well for our 21st century lifestyles. The low back , or lumbar spine, is first on my list for sending back (or forward?) to the engineers. A close second though might be the " knee cap " or patellofemoral joint.
The "knee cap" or patella is an ovoid shaped bone whose main purpose is to act as a fulcrum that big muscle on the front of your thigh, the quadriceps. (I'll wait while you grab your high school physics book). There are plenty of folks who do not have patellae, but because this causes the quad muscle to work inefficiently, few of these folks can run or climb stairs well. The design issue with the patella is that it articulates, or rubs up against, the end of the femur bone (thus the "patellofemoral" joint). For those of us who have pa...
A majority of patients have one question on their minds: Where the "heck" is that pain coming from? A red, painful swollen knee may hurt deep, on the side, in the middle, in the back, or just plain everywhere. A shoulder may hurt with the arm up, down or to the side. Although the question of "where" may seem simple enough, sometimes sorting out the exact location of the pain generator is an inexact science. Within the structure of a joint there exist three general areas of interest: the passive structures, the active structures and the nerves. Dissecting out the source of the pain involves the close examination of each of these areas. Once the location of the pain is found, the hope is that treatment can be directed, focused and effective.
By definition, a joint is where two bones join together to create a hinge joint , a ball-and-socket joint , a saddle joint , or one of the other types of joints found in the human body . Because the bones are not actively doing anything, just pro...
Do your knees feel wobbly or are your legs giving way? If you answered yes to either one of these questions, then you might be experiencing a condition known as Arthrogenic Muscle Inhibition. That’s a fancy way to say that the muscle weakness is caused by joint arthritis, injury and pain.
As a protective mechanism, the nervous system has reflexes that shut down muscle activity in order to protect the injured body part. In the case of an injured knee, ankle or other joint, doctors have observed significant muscle deactivation in response to joint swelling, pain, and arthritis. 1
In response to knee injury, surgery or arthritis, the quadriceps muscles become very weak. Even the hamstring and buttocks muscles are weakened in order to protect the knee. In response to an ankle injury or other painful process, the lower leg muscles in the calf start to lose their power. Researchers are even able to duplicate this arthrogenic muscle response by simulating joint swelling a...
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