Discussion
Premature infants have significantly more developmental impairment than their term counterparts. Oxygen is regularly used in preterm infants because of their immature lungs and oxygen is important for metabolism and physiological functions [12,13]. This study has shown an improvement in peripheral oxygen saturation (SapO2) after 30 min of KMC. Researchers have explained the improvement in oxygenation by the fact that the upright position of KMC increases the efficiency of the diaphragm and pulmonary function [14,15]. On other hand, other researchers have concluded no significant changes in oxygen saturation and consumption during KMC [16,17]. In the current study, there has been a statistically significant decrease in heart rate after applying KMC that generally remained within clinically normal range (120–160 bpm). KMC results in significant reduction