Improved fine motor performance in children born preterm: a longitudinal study of upper-limb kinematics from 4 to 8 years
2015 (English)Conference paper, Poster (Refereed)
Although children born preterm (PT) are at known risk for impaired neuromotor development, longitudinal studies using detailed measurements of motor performance are rare. This study investigated developmental changes in goal-directed upper-limb kinematics from 4-8 years old in a sample of children born fullterm (FT) and PT without known developmental disabilities.
Participants and Methods:
3D kinematic recordings of performance with either arm/hand during a goal-directed unimanual precision task were carried out at 4 and 8 years in 37 children (13 very PT, V-PT, < 32 GW; 5 moderately PT, M-PT, 33-35 GW; 19 FT).
Repeated measures ANOVA revealed significant main effects for group and occasion, and interaction effects between group and occasion, for distal movement duration (p < .0001) and segmentation in terms of movement units (MUs, p < .0001). From initially having displayed less proficient movement organization at 4 years than both children born FT and M-PT, the children born V-PT showed a marked catch-up at 8 years, where no significant group differences remained. The mean between-occasion difference was substantial for both duration and segmentation in V-PT relative the other groups, although with noticeably higher within-group variability (MSD = 1.2 s/7.8 MUs) than M-PT (MSD = 0.5 s/2.5 MUs) and FT (MSD = 0.5 s/4.2 MUs).
The children born PT, V-PT in particular, generally displayed a considerable gain in fine motor performance from preschool to school age. Compared with the FT and M-PT groups, however, the rate of improvement appears more heterogeneous in the V-PT group
Place, publisher, year, edition, pages
2015. Vol. 57, 39- p.
, Developmental Medicine and Child Neurology, ISSN 1469-8749
Research subject Pediatrics; Psychology
IdentifiersURN: urn:nbn:se:umu:diva-108323DOI: 10.1111/dmcn.12780_37OAI: oai:DiVA.org:umu-108323DiVA: diva2:852330
The 27th annual meeting of the European Academy of Childhood Disability in Copenhagen, Denmark on May 27-30, 2015
FunderSwedish Research Council, Dnr:2011-179