期刊
HUMAN MOVEMENT SCIENCE
卷 55, 期 -, 页码 296-306出版社
ELSEVIER
DOI: 10.1016/j.humov.2017.08.021
关键词
DCD; Internal modeling deficit; IMD; Mental rotation; Motor planning
资金
- Graduate School of the Behavioural Science Institute Nijmegen, Radboud University Nijmegen
Children with impaired motor coordination (or Development Coordination Disorder - DCD) have difficulty with the predictive control of movements, evidenced by cross-sectional studies that show impaired motor imagery and action planning abilities. What remains unclear is whether this deficit in predictive control reflects immaturity of the motor system (a developmental delay) or some deviation from normal development (a disorder). To advance this discussion the present study used a longitudinal design to examine the development of motor imagery and action planning in children with DCD. Thirty children were included in the DCD group (aged 6-11 years) and age- and gender-matched to 30 controls. The DCD group had a mABC-2 score <= 16th percentile, the control group > 20th percentile. Motor imagery was assessed with the hand rotation task, action planning with a test for end-state comfort. Children participated in three measurements, with one year in between measurements. Results showed that children with DCD were slower and less accurate than their typically developing peers in all subsequent years but were able to improve their motor imagery ability over time. Furthermore, children with DCD showed less planning for ESC at the start of the present study, but were able to catch up with their peers during two-year follow up. These results exemplify that improvement of motor imagery and action planning ability is possible in DCD, and they lend theoretical support to the use of new training techniques that focus on training motor imagery to improve motor skills in children with DCD.
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