Inclusion Criteria  Prematures and low birth weight infants in Kangaroo position with a chronological age less than 3 months The mothers take care the infant at home Baby with a weight equal to or greater than 1800 grams at the time of entry to the study. Baby whose birth was institutional or extra-institutional. Mothers with training in the Kangaroo Mother Program Children controlled in the Ambulatory Kangaroo Mother Program  Exclusion Criteria  Children diagnosed with intraventricular hemorrhages grade III and IV or congenital malformations Children who have more than one ambulatory kangaroo control Children who have been at home for more than 3 days without starting the ambulatory kangaroo control Babies with infections and other pathologies that require hospitalization during the study Presence of infectious diseases and other pathologies in the mother that require hospitalization Mother confirmed with positive test for covid 19 at the moment of the randomization Mothers with cognitive problems or mental disorders.