Chest physiotherapy, also known as respiratory physiotherapy or chest physical therapy, is a specialized form of therapy aimed at improving respiratory function and clearing secretions from the lungs and airways. It involves various techniques including postural drainage, percussion, vibration, and breathing exercises. Chest physiotherapy is commonly used to treat respiratory conditions such as cystic fibrosis, chronic obstructive pulmonary disease (COPD), and bronchiectasis. It can help to improve lung function, reduce symptoms like shortness of breath and cough, and prevent complications associated with breathing difficulties.