Total knee replacement (TKR) surgery can do wonders for an arthritic or damaged knee. But TKR is hard on the muscles around the knee. Surgery and the down time after surgery often cause these muscles to lose strength. Weakness is especially bad in the thigh muscles. Much of rehab after TKR involves strengthening the weak muscles around the knee. Electric muscle stimulation (EMS) can help muscles gain strength. It seems odd that simply passing an electrical current through a muscle can build it up, but it's true. EMS is sometimes used to regain strength after spine injuries. EMS has also been shown to help athletes build muscle. These authors tested using EMS in the thigh muscles after TKR. Fifteen patients were given EMS treatments after TKR. They were hooked up to EMS for four hours a day over six weeks. They also had the usual physical therapy. A second group of 15 patients received just the usual therapy. Both groups were checked for walking speed, walking effort, and knee function b...
Injury to the anterior cruciate ligament (ACL) in the knee is really more than just a torn ligament. Along with damage to the ligament comes weakness of the quadriceps muscle. The quadriceps is the large muscle that comes down over the front of the thigh from the hip to the knee. Scientists are trying to unlock the puzzle of this muscle weakness. The muscle isn't wasting away, a condition called atrophy . So what could be causing this weakness? Is there some way that the ligament signals the muscle to contract in a normal knee? What other changes occur after a ligament is torn or damaged that could affect the muscle? Researchers at the University of Tokyo in Japan set out to answer these questions. They found signals that form a complete loop from knee joint to ligament to muscle. This is called afferent feedback . Before the experiment, scientists thought that damage to the ACL alters this loop. Decreased signals to the muscle cause the weakness. To prove this, they used vibration to the ...
I just started having sharp stabbing pains of the left side of my head just above the left ear. It feels like someone is stabbing with a sharp object and is very painful. It doesn't last too long. Sometimes I get them one after the other and sometimes it goes away and them comes back, but right after this happens I get tingling all over my left check and then going down to the jaw are.
I've have this now going on 3 days. Today the jabbing is going to my forehead mainly on the left side. I'm very worried. Thanks, Rose.
This isn't a question that anyone can safely answer via the Internet. It needs to be addressed by a physician who can review your medical history, discuss your symptoms, and examine you in person.
What you describe could be ice pick headaches, but we cannot say if it is or not. You can find some information in Ice Pick Headaches - The Basics .
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