Myofascial trigger points, as defined and popularized by doctors Janet Travell and David Simons, are hyperirritable spots within a taut band of skeletal muscle. These points are characterized by localized tenderness, referred pain patterns, and the ability to elicit a local twitch response upon stimulation. For example, a trigger point in the upper trapezius muscle can cause referred pain into the head, mimicking a tension headache.
The identification and treatment of these points offer a non-pharmacological approach to pain management, potentially reducing reliance on medication and improving patient quality of life. The work of Travell and Simons provided a comprehensive understanding of the etiology and clinical presentation of these points, laying the foundation for various therapeutic interventions. Their research emphasized the importance of thorough musculoskeletal examination and patient history to accurately diagnose and address the source of myofascial pain.