Respiratory muscles are a group of muscles that are responsible for the process of breathing. This includes the diaphragm, intercostal muscles, and other muscles in the chest and abdomen that help to expand and contract the lungs. The respiratory muscles play a crucial role in maintaining proper lung function and oxygenating the body. Research in this area focuses on understanding the mechanisms of respiratory muscle function, how they are affected by various respiratory disorders, and developing therapies to improve respiratory muscle strength and function. This research is important for improving the treatment of conditions such as chronic obstructive pulmonary disease (COPD), asthma, and other respiratory diseases.