Ainat Koren1, Linda Kahn-D'angelo2, Susan M Reece3, Rebecca Gore4. 1. Ainat Koren, Associate Professor, Susan and Alan Solomont School of Nursing, Zuckerberg College of Health Sciences, University of Massachusetts, Lowell, Lowell, MA.. Electronic address: ainat_koren@uml.edu. 2. Linda Kahn-D'angelo, Professor, Department of Physiotherapy, Zuckerberg College of Health Sciences, University of Massachusetts, Lowell, Lowell, MA. 3. Susan M. Reece, Professor Emeritus, Susan and Alan Solomont School of Nursing, Zuckerberg College of Health Sciences, University of Massachusetts, Lowell, Lowell, MA. 4. Rebecca Gore, Senior Biostatistician, School of Public Health, Zuckerberg College of Health Sciences, University of Massachusetts, Lowell, Lowell, MA.
Abstract
INTRODUCTION: This exploratory study investigated the infant time spent in tummy time (TT) in relation to body mass index z score (BMI-z), weight gain, and motor development in infants from birth to 4 months. METHOD: Mothers and their infants were telephone surveyed at 2 and 4 months. Mother demographics; TT; feeding practices; and infant length, and height, and development were collected each time. RESULTS: Results from Cochran-Mantel-Haenszel and single logistic regression showed a significant association between development, level of BMI-z, and time spent in TT at 2 months of age (p < .0001). The threshold model showed there was a decline in BMI-z at 4 months as daily time in TT increases past the threshold value of approximately 12 minutes per day. Mother education and TT at 2 months were significant predictors of BMI-z at 4 months. DISCUSSION: Study outcomes suggest that infant positioning and time in TT promote infant motor development and may moderate rapid infant weight gain.
INTRODUCTION: This exploratory study investigated the infant time spent in tummy time (TT) in relation to body mass index z score (BMI-z), weight gain, and motor development in infants from birth to 4 months. METHOD: Mothers and their infants were telephone surveyed at 2 and 4 months. Mother demographics; TT; feeding practices; and infant length, and height, and development were collected each time. RESULTS: Results from Cochran-Mantel-Haenszel and single logistic regression showed a significant association between development, level of BMI-z, and time spent in TT at 2 months of age (p < .0001). The threshold model showed there was a decline in BMI-z at 4 months as daily time in TT increases past the threshold value of approximately 12 minutes per day. Mother education and TT at 2 months were significant predictors of BMI-z at 4 months. DISCUSSION: Study outcomes suggest that infant positioning and time in TT promote infant motor development and may moderate rapid infantweight gain.
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