Balance performance in children with Developmental Coordination Disorder

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Balance performance in children with Developmental Coordination Disorder

 

Author: Lee, Yuen-li Velma
Title: Balance performance in children with Developmental Coordination Disorder
Degree: M.Sc.
Year: 2010
Subject: Hong Kong Polytechnic University -- Dissertations
Equilibrium (Physiology) -- Testing
Apraxia -- China -- Hong Kong
Learning disabled children -- China -- Hong Kong
Department: Dept. of Rehabilitation Sciences
Pages: ix, 89 leaves : ill. ; 30 cm.
InnoPac Record: http://library.polyu.edu.hk/record=b2353065
URI: http://theses.lib.polyu.edu.hk/handle/200/5670
Abstract: Introduction: The aims of the study were three-fold. Firstly, we compared the balance perfonnance of children with Developmental Coordination Disorder (DCD) with age and gender matched normal children, aged from six to twelve years old. Secondly, we investigated what sensory systems contribute to the balance deficits in children with DCD. Thirdly, the correlation between balance perfonnance and activity participation was examined. Methods: A total of 48 children (36 males and 12 females) and 65 age- and gender-matched typically developing children (43 males and 22 females) participated in the study. Each of them underwent the Movement Assessment Battery for Children (Movement ABC), Sensory Organization Test (SOT). The parents and children were interviewed by using the Assessment of Participation and Enjoyment (CAPE). Multivariate analyses of variance (MANOVA) were used to determine whether there was a significant overall effect of condition (DCD vs control) in all variables of interest including SOT-derived composite score and sensory ratios, Movement ABC scores and CAPE scores. Pearson's correlation coefficients are used to examine the association of CAPE scores with SOT-derived composite balance score and Movement ABC balance scores. Results: The results showed a significant difference between children with DCD and control children in the Movement ABC total percentile score (F=89.738, p<0.001), and balance subscore (F=86.466, p<0.001). For the SOT, the composite equilibrium score demonstrated a significant difference between the DCD group and control group (F=34.757, p<0.001). The DCD group scored significantly lower in all conditions than the control group [condition 1 (F=23.184, p<0.001). condition 2 (F=14.930, p<0.001), condition 3 (F=17.682, p<0.001), condition 4 (F=27.806, p<0.001). condition 5 (F=14.311, p<0.001), and condition 6 (F=18.827, p<0.001)]. In sensory ratio analysis, the DCD group also scored significantly lower than the control group in the visual ratio (F=19.756, p<0.001) and vestibular ratio (F=9.481, p=0.003). However, there was no significant between~group difference in the somatosensory ratio (F=0.028 p=0.869) and preference ratio (F=0.935, p=0.336). The CAPE diversity and intensity scores showed significant between-group difference in all activity categories. A significant, positive correlation was found between the Movement ABC balance standard score and recreational activity diversity score (r=0.360, p=0.012) and where score (r=0.325, p=0.024). Conclusion: The results demonstrated that children with DCD have significant standing balance deficits and that the visual and vestibular systems may contribute to such deficits. Modest relationship between balance ability and participation of certain activities was found among children with DCD. The results have important implications for rehabilitative intervention for children with DCD.

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