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Updated: Jul 19, 2026

Non-Nutritive Suck Parameters Measurements Using a Custom Pressure Transducer System
Published on: April 19, 2024
Predictors of nutritive sucking in preterm infants
R H Pickler1, A M Best, B A Reyna
1School of Nursing, Virginia Commonwealth University, Richmond, VA 23219, USA. rpickler@vcu.edu
Objective:
The purposes of this analysis were to determine how select characteristics of nutritive sucking (number of sucks, sucks/burst, and sucks/minute) change over time and to examine the effect of select factors (morbidity, maturity, prefeeding behavior state, and feeding experience) on those changes.
Study Design:
A longitudinal, non-experimental study was conducted in a Level 3 neonatal intensive care unit using a convenience sample of 88 preterm infants. Statistical analyses were performed using a repeated-measures mixed-model in SAS.
Results:
Sucking activity (number of sucks, sucks/burst, and sucks/minute) was predicted by morbidity, maturity, feeding experience and prefeeding behavior state. Experience at oral feeding had the greatest effect on changes in the number of sucks, suck/burst and sucks/minute.
Conclusion:
Experience at feeding may result in more rapid maturation of sucking characteristics.
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