what is an intercostal muscle strain
Intercostal Strain. In the spine there is an intercostal muscle group consisting of the internal and external intercostals, and the subcostal and transverse thoracic muscles, located between the ribs in the thoracic cavity.These muscles can become strained due to rapid movements that bend or twist the upper body suddenly.n the spine there is an intercostal muscle group consisting of the internal and external intercostals, and the subcostal and transverse thoracic muscles, located between the ribs in the thoracic cavity. These muscles can become strained due to rapid movements that bend or twist the upper body suddenly.