Inclusion Criteria:  Eligibilty was determined by the neonatologist based on the following inclusion criteria:  babies born at 26-30 weeks PMA, stable clinical condition, vital signs stable for at least 24 hours, able to have PIOMI by the 29th or 30th week PMA, required respiratory support limited to an oxyhood, Continuous Positive Airway Pressure (CPAP) and/or nasal cannula up to 2L flow, APGAR scores at 1- and 5-minutes of 4 and above, any race or ethnicity, intraventricular hemmorhage limited to level 1 or 2; and had no birth defects including facial anomolies that would impact feeding.  Exclusion Criteria:  Whose gestational age at birth was less than 26 weeks, had congenital disorder or birth trauma, had NEC, had RDS, were diagnosed with severe asphyxia, had intraventricular bleeding, had Newborn Withdrawal Syndrome, had Fetal Alcohol Syndrome, were receiving ventilator support, were receiving Extracorporeal Membrane Oxygenation, developed any complications during the follow-up period in the intervention group, whose balance status deteriorated, whose written and verbal permissions were obtained from their parents.