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Dev Psychobiol. 2014 Sep;56(6):1263-77. doi: 10.1002/dev.21206. Epub 2014 Feb 13.

Long-term influences of a preterm birth on movement organization and side specialization in children at 4-8 years of age.

Author information

1
Department of Psychology, Umeå University, Umeå, Sweden.

Abstract

This study explored upper-limb and head kinematics during unimanual goal-directed movements in children born preterm (PT) and full-term (FT) aged 4-8 years. Further, functional lateralization was investigated through side-specific kinematics and hand preference observations. Altogether, 141 children were included, divided into three sub-groups based on gestation week at birth (GW). Children born FT (38-41 GW) and moderately PT (33-35 GW) showed faster, smoother, and shorter movement trajectories than children born very PT (V-PT < 33 GW). Only children born FT expressed evident side differences that were characterized by smoother movements with the preferred side. Regarding hand preference, the children born V-PT showed increased rates of non-right-handedness compared with the other groups. Regardless of hand preference, the children born V-PT showed less well organized movements compared with the other groups. These findings suggest that spatio-temporal movement organization and side specialization at pre-/early school-age are affected by a PT birth, and more frequently so for children born before 33 GWs, indicating long-lasting influences on neuromotor development and specialization.

KEYWORDS:

child development; handedness; kinematics; laterality; motor performance; preterm

PMID:
24523104
DOI:
10.1002/dev.21206
[Indexed for MEDLINE]

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