The objective of the investigation was to study the stability of the c
ardiorespiratory system of 20 premature boys and girls during maternal
kangaroo care (KC) and in the incubator. Stability of heart rate, res
piration and oxygen saturation was compared in a pretest-test-posttest
design by means of a stability score. The three stability items and t
he total stability did not change significantly during the three condi
tions. In some individuals the stability either increased or decreased
markedly during Kangaroo Care. The boys showed significantly less car
diorespiratory stability both during kangaroo care and in the incubato
r compared to the girls. (C) 1998 Elsevier Science Ireland Ltd. All ri
ghts reserved.