Motor Development Comparison between Preterm and Full-Term Infants Using Alberta Infant Motor Scale

Jooyeon Ko () and Hyun Kyoon Lim ()
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Jooyeon Ko: Department of Physical Therapy, Daegu Health College, Daegu 41453, Republic of Korea
Hyun Kyoon Lim: Medical Measurement Team, Korea Research Institutes of Standards and Science, Daejeon 34113, Republic of Korea

IJERPH, 2023, vol. 20, issue 5, 1-10

Abstract: The Alberta Infant Motor Scale (AIMS) was developed to evaluate the motor development of infants up to 18 months of age. We studied 252 infants in three groups (105 healthy preterm infants (HPI), 50 preterm infants with brain injury (PIBI), and 97 healthy full-term infants (HFI) under 18 months, corrected age (CoA)) using AIMS. No significant differences were found among HPI, PIBI, and HFI in infants less than 3 months old, yet significant differences were noted in positional scores ( p < 0.05) and total scores for those four to six months of age and seven to nine months of age. A significant difference was also found in standing items for infants over 10 months ( p < 0.05). After four months, there was a difference in motor development between preterm (with and without brain injury) and full-term infants. In particular, there was a significant difference in motor development between HPI and HFI and between PIBI and HFI at four to nine months, when motor skills developed explosively ( p < 0.05). After four months, motor developmental delays (10th ≥) were observed in HPI and PIBI at rates of 26% and 45.8%, respectively. Midline supine development, a representative indicator of early motor development, was slower even in healthy preterm infants than in full-term infants. AIMS has a good resolution to discriminate preterm infants who are showing insufficient motor development from 4 months to 9 months.

Keywords: Alberta Infant Motor Scale (AIMS); motor development; preterm infants; midline development; motor skills (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
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