What characterizes active Myofascial Trigger Points?

• A. They are pain-free until pressure is applied
• B. They cause pain at rest and elicit a jump sign upon pressure
• C. They are located only in the lower back
• D. They improve with regular exercise

Answer: (B)

Active myofascial trigger points are characterized by causing pain even at rest, meaning that the discomfort can be present without any external pressure applied to the affected muscle. When pressure is applied to an active trigger point, it typically elicits a jump sign, which is an involuntary response indicating the presence of pain or discomfort in that area. This behavior distinguishes active trigger points from latent trigger points, which might not cause pain unless they are stimulated but are otherwise pain-free.

The presence of pain at rest is a significant indicator of active trigger points, as these points can significantly impact a person's daily activities and quality of life. Understanding this characteristic is crucial for effective assessment and treatment in the field of athletic training and rehabilitation.