Intercostal neuralgia is nerve pain that affects the area below your ribs and can be caused by several different conditions. People with intercostal neuralgia experience a lot of pain in their ribs, ...

Intercostal muscle strain is an injury affecting the muscles between two or more ribs. Symptoms can include sharp, direct pain, stiffness, and mobility difficulties. The intercostal muscles have ...

A muscle strain in the chest may cause sharp pains when moving or breathing. They commonly occur due to impact injuries or overuse and are often treatable with rest, pain relievers, and physical ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

Q: I had a sudden, twisting jolt when I jumped off a ladder and within a day my chest started to really hurt when I moved or breathed. It become incredibly painful when I coughed or sneezed. Even ...

The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a new study. The flow of water within a muscle fiber may dictate how quickly muscle can contract, ...

In a serendipitous discovery, UC San Diego researchers using cryo-EM technology captured the first visualizations of the 3-D structure of the muscle acetylcholine receptor in fetal and adult muscles.