Using accessory muscles implies that the forced expiratory volume in 1 second (FEV1) is decreased to 30% of normal, which is usually between 1.0 and 1.5 liters per second. In such cases, a sitting ...

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 ...

Intercostal neuralgia occurs when a person experiences neuropathic pain in their ribs, chest, or abdomen. It may feel like a sharp, stabbing, aching, or burning pain. Various conditions may cause ...