When a muscle is a continued state of contraction , what is it called?

Explanation

**Step-by-Step Solution:**

1. **Understanding Muscle Contraction**: Muscle contraction can occur in various forms, and it is important to know the different states of muscle activity.

2. **Definition of Continuous Contraction**: When a muscle is in a continuous state of contraction, it means that the muscle fibers are not relaxing and are instead remaining contracted.

3. **Technical Term**: The technical term for this condition, where a muscle is in a sustained state of contraction due to rapid and repeated stimuli, is known as a "muscle spasm."

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