How can IMT help COPD sufferers?

In COPD, lung scarring occurs, and some lung volumes may be lost. This is due to hyperinflation and mechanical disadvantage, creating poorer operational circumstances for diaphragm movement. IMT does not repair lung damage. By having stronger inspiratory muscles, this conditioning can help compensate by working with the accessory muscles. With IMT, functional gains are possible, such as a natural bronchodilator effect, which promotes a more prolonged pressure wave through a range of muscle contractions. This happens over whatever lung volume is available.