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Iron deficiency anemia in infancy and reach and grasp development

Tal Shafir1, Rosa Angulo-Barroso, Jing Su

  • 1The Molecular & Behavioral Neuroscience Institute (MBNI), University of Michigan, 205 Zina Pitcher Pl, Rm 1066, Ann Arbor, MI 48109-0720, USA. gahl@umich.edu

Infant Behavior & Development
|July 14, 2009
PubMed

Insights

Iron deficiency anemia (IDA) in infants is linked to delayed upper extremity motor development. Early motor interventions may be beneficial for infants with IDA.

Area of Science:

  • Pediatric Medicine
  • Developmental Neuroscience
  • Hematology

Background:

  • Iron deficiency anemia (IDA) is a prevalent condition in infants.
  • IDA is hypothesized to negatively impact neurodevelopment, including motor skills.
  • Upper extremity motor development is crucial for infant interaction and exploration.

Purpose of the Study:

  • To investigate the effect of IDA on the kinematic characteristics of infant reach and grasp.
  • To test the hypothesis that IDA delays upper extremity motor development in 9- to 10-month-old infants.

Main Methods:

  • Assessed 9 kinematic characteristics of reach and grasp movements using a 3D-motion capture system.
  • Compared movement data between infants with IDA (n=4) and iron-sufficient (IS) infants (n=5).
  • Utilized normative motor development data for comparison.

Main Results:

  • IDA infants exhibited poorer upper extremity control compared to IS infants.
  • Statistically significant group differences were observed in 2 kinematic characteristics.
  • Effect sizes (Cohen's d > 1.2) indicated substantial differences in 4 characteristics.
  • 3 measures, not typically showing developmental changes at this age, also revealed significant differences.

Conclusions:

  • IDA is associated with impaired upper extremity motor control in infants.
  • These motor deficits may persist long-term, even after iron therapy.
  • A motor intervention may be warranted alongside iron therapy for infants diagnosed with IDA.

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