Muscle origins of myofascial pain syndrome

1. Martínez-Jiménez, Eva María ¹
2. López-López, Daniel ²
3. Romero-Morales, Carlos ³
4. Mazoteras-Pardo, Victoria ⁴
5. Losa-Iglesias, Marta Elena ¹⁵
6. Rodríguez-Sanz, David ¹
7. San-Antolín-Gil, Marta ³
8. Becerro-de-Bengoa-Vallejo, Ricardo ¹
9. Calvo-Lobo, César ¹

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DOI: 10.1016/B978-0-12-820589-1.00030-0 GOOGLE SCHOLAR lock_openAcceso abierto editor

Resumen

Myofascial pain syndrome has been defined as a set of motor, nociceptive, and autonomic symptoms (Travell & Simons, 2004). These symptoms are caused by the trigger point, an anatomically localizable structure within the skeletal muscle that is hyperirritable and associated with hypersensitivity symptoms while clinically explored by compression, stretch, overload, or contraction of the muscle (Bron et al., 2007; Sanz et al., 2016; Travell & Simons, 2004). Trigger point is located on a longitudinal tight band of the skeletal muscle and it is classified into two different types (active or latent myofascial trigger point) depending on its clinical characteristics (Sanz et al., 2016).Myofascial pain syndrome has two different components of nociception: local and referred pain. Referred pain is perceived distally to the damaged tissue such as other deep tissues like arm and neck pain in myocardial infarction or pain at the right shoulder in gallbladder inflammation (Aasvang et al., 2015).The objective of this chapter is to explain the current knowledge about myofascial pain syndrome and the pathophysiology of its production.