Everyone who goes into surgery for a total knee replacement (TKR) knows the leg is weak from pain and disuse. When and how does muscle strength come back after the operation? Studies show that many patients have weakness and loss of function that can go on for years. Electrical stimulation of the muscles improves strength in young adults. What effect will it have on older adults after a TKR? Physical therapists enrolled patients who were having both knees replaced at the same time in a study of electrical stimulation. Having subjects with both knees replaced gave researchers a chance to use electrical stimulation on only one side. Results were then compared to the patients' own knee that did not get electrical stimulation. Two groups were formed in this study. One group received the same exercises for both legs. The other group received neuromuscular electrical stimulation (NMES). The NMES group did exercise on one side and exercise along with NMES on the weaker leg. Everyone started th...
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'm 15, and for the last 3/4 days I have been having stabbing like pains on the right side of my head, mainly when I first wake up or stand up! I am a worrier and tend to think of extreme things and make myself worried even more, I am going to the doctors tomorrow but I am afraid they will just give me pain killers. Leigh.
We hope your doctor was able to explain the pains and help you. Before prescribing medications, doctors should diagnose what the pains are if at all possible. You don't mention how long these pains last. If they're only seconds long, they might be ice pick headaches. You can find more information in Ice Pick Headaches - The Basics .
If your doctor isn’t able to help you, it may well be time to consult a Migraine and headache specialist. It’s important to note that neurologists aren’t necessarily Migraine and headache specialists
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