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  1. Isometric exercises: Good for strength training? - Mayo Clinic

    Nov 18, 2023 · Isometric exercises are tightening (contractions) of a specific muscle or group of muscles. During isometric exercises, the muscle doesn't noticeably change length. The affected joint …

  2. Muscle cramp - Symptoms and causes - Mayo Clinic

    Mar 7, 2023 · Overview A muscle cramp is a sudden, unexpected tightening of one or more muscles. Sometimes called a charley horse, a muscle cramp can be very painful. Exercising or working hard, …

  3. Muscle pain Causes - Mayo Clinic

    Apr 27, 2023 · The most common causes of muscle pain are tension, stress, overuse and minor injuries. This type of pain is usually limited to just a few muscles or a small part of your body. Muscle pain that …

  4. Dystonia - Symptoms and causes - Mayo Clinic

    Jan 25, 2025 · The muscle spasms can range from mild to more serious. They may be painful, and they can affect the person's ability to complete daily tasks. There's no cure for dystonia, but medicines …

  5. Myofascial pain syndrome - Symptoms and causes - Mayo Clinic

    Jan 5, 2024 · Overview Myofascial pain syndrome is a long-term pain condition. It involves some muscles and the thin cover of tissue that holds muscles in place, called fascia. Pressure on these …

  6. Movement disorders - Symptoms and causes - Mayo Clinic

    May 30, 2024 · There are many types of movement disorders that cause different symptoms. For example, dystonia causes muscle contractions that lead to twisting of the body. Another movement …

  7. Neuromuscular Disease - Overview - Mayo Clinic

    Nov 8, 2025 · Neuromuscular Disease Overview Neuromuscular diseases affect the function of muscles due to problems with the nerves and muscles in your body. The most common sign of these …

  8. Hemifacial spasm - Symptoms and causes - Mayo Clinic

    Oct 31, 2025 · Overview Hemifacial spasm is a nervous system condition that causes muscles on one side of the face to twitch or spasm. You cannot control hemifacial spasms. They usually start around …

  9. Slowing or reversing muscle loss - Mayo Clinic

    Apr 10, 2014 · Slowing or reversing muscle loss — Researcher Nathan K. LeBrasseur, Ph.D., discusses the discovery that the growth and differentiation factor-8 functions as a potent negative regulator of …

  10. Back pain - Symptoms and causes - Mayo Clinic

    Symptoms Back pain can range from a muscle ache to a shooting, burning or stabbing feeling. Also, the pain can radiate down a leg. Bending, twisting, lifting, standing or walking can make pain worse. …