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Quantified Assessment of Infant's Gross Motor Abilities Using a Multisensor Wearable
Published on: May 17, 2024
Infant overweight is associated with delayed motor development
Meghan Slining1, Linda S Adair, Barbara Davis Goldman
1Department of Nutrition, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27516-3997, USA. slining@email.unc.edu
Insights
Infant overweight and high subcutaneous fat are linked to delayed motor development. Early identification and intervention are crucial for healthy infant development.
Area of Science:
- Pediatrics
- Developmental Biology
- Public Health
Background:
- Infant overweight and high subcutaneous fat are growing concerns.
- Early motor development is critical for overall child development.
Purpose of the Study:
- To investigate the relationship between infant overweight and high subcutaneous fat and motor development.
- To assess if excess adiposity in infancy predicts motor delays.
Main Methods:
- Prospective, longitudinal study of 217 low-income African-American mother-infant dyads from 3 to 18 months.
- Overweight defined by weight-for-length z-score ≥90th percentile; high subcutaneous fat by skinfold measurements ≥90th percentile.
- Motor development assessed using Bayley Scales of Infant Development-II; delay defined as Psychomotor Development Index score <85.
Main Results:
- Overweight infants were 1.80 times more likely to experience motor delay.
- Infants with high subcutaneous fat were 2.32 times more likely to have motor delay.
- High subcutaneous fat also predicted subsequent motor development delays (OR, 2.27).
Conclusions:
- Pediatric overweight and high subcutaneous fat are significantly associated with delayed infant motor development.
- These findings highlight the importance of monitoring infant body composition for developmental outcomes.
Objective:
To examine how infant overweight and high subcutaneous fat relate to infant motor development.
Study Design:
Participants were from the Infant Care, Feeding, and Risk of Obesity Project, a prospective, longitudinal study of low-income African-American mother-infant dyads assessed from 3 to 18 months of age (836 observations on 217 infants). Exposures were overweight (weight-for-length z-score>or=90th percentile of 2000 Centers for Disease Control/National Center for Health Statistics growth reference) and high subcutaneous fat (sum of 3 skinfold measurements>90th percentile of our sample). Motor development was assessed by using the Bayley Scales of Infant Development-II. Developmental delay was characterized as a standardized Psychomotor Development Index score<85. Longitudinal models estimated developmental outcomes as functions of time-varying overweight and subcutaneous fat, controlling for age and sex. Alternate models tested concurrent and lagged relationships (earlier weight or subcutaneous fat predicting current motor development).
Results:
Motor delay was 1.80 times as likely in overweight infants compared with non-overweight infants (95% CI,1.09-2.97) and 2.32 times as likely in infants with high subcutaneous fat compared with infants with lower subcutaneous fat (95% CI, 1.26-4.29). High subcutaneous fat was also associated with delay in subsequent motor development (odds ratio, 2.27; 95% CI, 1.08-4.76).
Conclusions:
Pediatric overweight and high subcutaneous fat are associated with delayed infant motor development.
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