Lung Recruitment During Chest Physiotherapy in Mechanically Ventilated Patients

Bimanual Rib Cage Compressions (RCC) applied to the thorax only, with patients in a standardized position (supine with the head of the bed elevated to 35 degrees). The intervention is standardized in terms of the direction of force (posterior and downward) and the characteristics of the compression (brief and vigorous compressions at the beginning of expiration).