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Examining Childhood Obesity From Infancy: The Relationship Between Tummy Time, Infant BMI-z, Weight Gain, and Motor

Ainat Koren1, Linda Kahn-D'angelo2, Susan M Reece3

  • 1Ainat Koren, Associate Professor, Susan and Alan Solomont School of Nursing, Zuckerberg College of Health Sciences, University of Massachusetts, Lowell, Lowell, MA..

Journal of Pediatric Health Care : Official Publication of National Association of Pediatric Nurse Associates & Practitioners
|August 23, 2018
PubMed

Insights

Tummy time (TT) is linked to better infant motor development and can help manage weight gain. Increasing daily TT beyond 12 minutes by 4 months may reduce BMI-z scores, promoting healthier infant growth.

Area of Science:

  • Pediatrics
  • Infant Development
  • Public Health

Background:

  • Infant positioning and early life physical activity are crucial for development.
  • Understanding the impact of Tummy Time (TT) on infant growth metrics is essential.

Purpose of the Study:

  • To explore the relationship between Tummy Time (TT) and infant Body Mass Index z score (BMI-z), weight gain, and motor development.
  • To identify potential thresholds for TT duration that influence infant growth and development.

Main Methods:

  • Telephone surveys collected data from mothers and infants at 2 and 4 months.
  • Data included mother demographics, TT duration, feeding practices, infant length, height, and motor development.
  • Statistical analyses included Cochran-Mantel-Haenszel and logistic regression, with a threshold model applied.

Main Results:

  • A significant association was found between TT, motor development, and BMI-z at 2 months (p < .0001).
  • Increasing daily TT beyond approximately 12 minutes by 4 months correlated with a decline in BMI-z.
  • Mother's education and TT at 2 months predicted BMI-z at 4 months.

Conclusions:

  • Infant positioning through Tummy Time (TT) supports motor development.
  • Adequate TT may play a role in moderating rapid infant weight gain and promoting healthy BMI-z trajectories.
Abstract

Keywords:
BMI-zdevelopmentinfancyinfant developmenttummy time

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