Deep and slow inspiration is used in the initial and active stages, at which time the contractions vary from uncomfortable to strong, lumbosacral pain and cervical dilation may occur between 3 and 8 cm in this case the mother is driven to inspire slowly and the level of inspiratory reserve volume followed by slow exhalation to functional residual capacity; Sigh with post-expiratory pause that corresponds to a small spontaneous exhalation to relax occurs in tidal volume; Expiratory delay that corresponds to a prolonged propelled with the lips during the lull and expiration in the expiration time that corresponds to a slow inspiration followed by two or three puffs with the short lips will be used propelled.

Follows the service routine

The anxiety of patients will be assessed using IDATE questionnaire