Table of Contents
- Muscle spasm facts
- What are the different types of muscle?
- What is skeletal muscle?
- What is smooth muscle?
- What is a muscle spasm?
- What causes muscle spasms?
- What causes muscle spasms? (Part 2)
- What causes muscle spasms? (Part 3)
- What are risk factors for muscle spasms?
- What are the symptoms and signs of muscle spasms?
- How are muscle spasms diagnosed?
- How are muscle spasms treated?
- What types of doctors treat muscle spasms?
- What is the prognosis for muscle spasms?
What causes muscle spasms?
There are a variety of causes of muscle spasms, and each depends upon predisposing factors, the part of the body involved, and the environment that the body is in.
Spasms may occur when a muscle is overused and tired, particularly if it is overstretched or if it has been held in the same position for a prolonged period of time. In effect, the muscle cell runs out of energy and fluid and becomes hyperexcitable, resulting in a forceful contraction. This spasm may involve part of a muscle, the whole muscle, or even adjacent muscles.
Overuse as a cause of skeletal muscle spasm is often seen in athletes who are doing strenuous exercise in a hot environment. This is also an occupational issue with construction workers or others working in a hot environment. Usually, the spasms will occur in the large muscles that are being asked to do the work. When this occurs associated with heat exposure, the condition is also known as heat cramps.
Overuse can also occur with routine daily activities like shoveling snow, or mowing or raking grass, causing muscle spasms of the neck, shoulder, and back. Continue Reading
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