Table of Contents
- Muscle cramps facts
- What are muscle cramps?
- What are the types and causes of muscle cramps?
- Types of muscle cramps: True cramps
- Types of muscle cramps: True cramps (Part 2)
- Types of muscle cramps - True cramps (Part 3)
- Types of muscle cramps - True cramps (Part 4)
- Types of muscle cramps - Tetany
- Types of muscle cramps - Dystonic cramps
- Q: What mimics a muscle cramp?
- Do all muscle cramps fit into the above categories?
- Can medications cause muscle cramps?
- Can vitamin deficiencies cause muscle cramps?
- Can poor circulation cause muscle cramps?
- What are the symptoms of common muscle cramps? How muscle cramps diagnosed?
- What is the treatment of skeletal muscle cramps?
- What types of doctors treat muscle cramps?
- What is the treatment of skeletal muscle cramps? (Continued)
- How can muscle cramps be prevented?
- How can muscle cramps be prevented? (Part 2)
- How can muscle cramps be prevented? (Part 3)
- How can muscle cramps be prevented? (Part 4)
- Are there particular concerns for older adults?
- Are there medications to prevent muscle cramps?
- What is the prognosis of recurrent muscle cramps?
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Types of muscle cramps - Dystonic cramps
The final category is dystonic cramps, in which muscles that are not needed for the intended movement are stimulated to contract. Muscles that are affected by this type of cramping include those that ordinarily work in the opposite direction of the intended movement, and/or others that exaggerate the movement. Some dystonic cramps usually affect small groups of muscles (eyelids, jaws, neck, larynx, etc.). The hands and arms may be affected during the performance of repetitive activities such as those associated with handwriting (writer's cramp), typing, playing certain musical instruments, and many others. Each of these repetitive activities may also produce true cramps from muscle fatigue. Dystonic cramps are not as common as true cramps.
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
"Muscle Spasms, Cramps, and Charley Horse." WebMD.com. Sept. 5, 2012. <http://www.webmd.com/pain-management/muscle-spasms-cramps-charley-horse>.
United States. Food and Drug Administration. "FDA Drug Safety Communication: New Risk Management Plan and Patient Information Guide for Qualapin (Quinine Sulfate)." July, 8, 2010.