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KMID : 0350519940470021027
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Journal of Catholic Medical College
1994 Volume.47 No. 2 p.1027 ~ p.1037
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Effects of Nonnutritive Sucking on Heart Rate, Lingual Lipase Activity, and Behavioral States of Low Birth Weight Infants
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Abstract
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We studied the effects of nonnutritive sucking(NNS) on heart rate, lingual lipase(LL) activity, and behavioral states under gavage feeding with 22 low birth weight infants hospitalized in 5 different hopitals.
NNS was applied to eleven infants and other eleven infants comprised the control group. Pacifiers were applied to the experimental group for 15 minutes before gavage feeding and were kept during the feeding. The treatment took approximately 20 to
22
minutes each time and was applied 7 times a day at intervals of 3 hours for consecutive eight days. Heart rate, LL activity, and behavioral states were measured on the first, third and seventh day.
@ES The results were as follows:
@EN 1. Experimental group had lowered heart rates than the control group before, during, and after the feeding, especially with a larger drop during the feeding.
2. Heart rate decreased on the third and seventh day in the experimental group, while it was ir regular and tended to increase in the control group.
3. LL activity was low at 15 minutes after the feeding in the experimental group, and then began to increase, reaching its highest ievel at 120 and 180 minutes after the feeding. However, no regular pattern was observed in the control group.
4. LL activity in the experimental group was higher than that in the control group on the first, third, and seventh day. The difference was very significant on the first and third day.
5. With regard to behavior, the state of "fuss or cry" was less frequent in the experimental group than in the control group, regardless of fedding status. The state of being "alert or awake" during feeding was found more frequently in the
experimental
group than in the control group and this ten dency was more pronounced as days passed.
These results lead to the conclusion that, among low birth weight infants under gavage feeding, NNS is effective for inducing stable and proper behavior for feeding, and for reducing heart rate before, after, and particularly during gavage
feeding.
NNS
is also effective in increasing the lingual lipase for fat digestion. Accordingly, the application of NNS to low birth weight infants under gavage feeding is encouraged for promoting well-being of nursing goals.
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