![]() ![]() repetitive strain injury, which is an injury to the muscles or nerves as a result of muscle overuse.polymyalgia rheumatica, which is a chronic inflammatory disease that can cause muscle pain and stiffness, especially in the shoulders.Parkinson’s disease, which is a progressive neurological disease that affects movement.myofascial pain syndrome, which is a chronic disorder in which pressure on sensitive points in the muscles causes pain.Lyme disease and Rocky Mountain spotted fever, which are tick-borne illnesses that can cause nerve damage.lupus, which is a chronic inflammatory disease that can cause pain and stiffness in the joints.fibromyalgia, which is a chronic disorder that can cause muscle soreness, pain, and rigidity.dystonia, which is a condition that causes random and involuntary muscle contractions.delayed-onset muscle soreness, which is a condition characterized by muscle pain and stiffness that develops hours or days after very strenuous exercise. ![]() ![]() dehydration, which is a condition that develops as a result of not drinking enough water.claudication, which is a condition in which cramping occurs due to a lack of blood flow to the muscles, usually in the legs.chronic fatigue syndrome, which is a condition that causes extreme fatigue, sleep abnormalities, and muscle pain.chronic exertional compartment syndrome, which is an exercise-induced muscle and nerve condition that causes pain and swelling.amyotrophic lateral sclerosis, which is a progressive neurodegenerative disease that causes nerve problems and a loss of control of voluntary muscles.Some medical conditions may also contribute to it. This can cause muscle tension and pain.Ĭertain medications, such as statins, can also cause muscle rigidity. Your nervous system may respond to stress by putting additional pressure on the blood vessels, which results in reduced blood flow to the muscles. Stress can adversely affect your body’s nervous system - including your nerves - and how they function. Muscle rigidity is often triggered by stress. The longer your muscle remains contracted, the more pain you’ll feel. This can sometimes last for several hours or days. The brain continues to send nerve signals telling the muscle to contract even when the muscle is no longer needed for movement. Muscle rigidity happens when a muscle or a group of muscles stays contracted or partly contracted for an extended period. After contracting, the muscles relax until the next time you need to use them. Muscles can contract a little bit or a lot, depending on the type of signal the brain sends. This causes the muscles to tighten, or contract. When you need to move a particular part of your body, your brain sends a nerve signal to the muscles located in that body part. Essential tremor in the elderly and risk for dementia.There are muscles all over your body. Illicit stimulant use in humans is associated with a long-term increase in tremor. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. A number of medications may help treat the symptoms. This may be a variant of essential tremor, which is a type of genetic tremor, but doctors do not know what causes it. People with this condition notice a sudden tremor upon standing. Liver and kidney failure may also cause tremors.Ī rare type of tremor, called primary orthostatic tremor, specifically affects the legs. They are often those that damage the neurological system, including: Numerous medical conditions can cause a tremor. The tremor may last for a few minutes, or it may be an ongoing problem. The contraction is rhythmic, so a person might feel the muscle shaking or moving at predictable intervals.Ī person with a leg tremor may notice their leg shaking while a muscle or group of muscles pulses or spasms out of control. Share on Pinterest A tremor is a possible cause of leg shaking.Ī tremor is an involuntary muscle contraction. ![]()
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