What is the purpose of vibration during chest therapy?

The purpose of vibration during chest therapy is to facilitate secretion removal. This technique is designed to help loosen and mobilize mucus from the airways, making it easier for patients to expel secretions when they cough. By applying vibrations to the chest wall, the procedure enhances airflow and disrupts the adhesion of mucus to airway walls, promoting effective drainage.

This is particularly beneficial for individuals with conditions that lead to increased mucus production, such as chronic obstructive pulmonary disease (COPD) or cystic fibrosis. The increased mechanical energy provided by vibration helps to reduce the viscosity of the mucus, thereby aiding in its clearance through natural coughing mechanisms or other airway clearance techniques.

In contrast, the other options either misrepresent the clinical goals of vibration therapy or concern unrelated physiological processes.