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1.
The aim of the current study was to test the hypothesis that children with probable Developmental Coordination Disorder have an increased risk of reduced moderate to vigorous physical activity (MVPA), using data from a large population based study. Prospectively collected data from 4331 children (boys = 2065, girls = 2266) who had completed motor coordination testing at 7 years and accelerometry at 12 years were analysed from the Avon Longitudinal Study of Parents and Children (ALSPAC). Probable DCD (p-DCD) was defined, using criteria based on the DSM IV classification, as those children below the 15th centile of the ALSPAC Coordination Test at seven years who had a functional impairment in activities of daily living or handwriting, excluding children with a known neurological diagnosis or IQ < 70. Secondary exposure variables consisted of subtests from the ALSPAC Coordination test (manual dexterity, ball skills and balance). Objective measurement of the average daily minutes of MVPA was recorded as ≥3600 counts per minute (cpm) using actigraph accelerometry. Boys with p-DCD were less physically active than boys without DCD (mean difference in MVPA 4.36 cpm, t = 2.69; p = 0.007). For boys, targeting skill (bean bag toss) was related to increased MVPA, after adjustment for confounding factors including neonatal, family and environmental factors as well as Body Mass Index at age seven and 12 years (β = 0.76, t = 3.37, p < 0.001, CI 0.32-1.20). There was no difference in level of MVPA in girls with and without p-DCD (mean difference 1.35 min, t = 0.97, p = 0.31), which may reflect the low levels of MVPA of girls in this cohort. Our findings suggest that the presence of movement difficulties, particularly poor targeting (bean bag toss/ball skills), at a young age is a potential risk factor for reduced MVPA in boys.  相似文献   

2.
BackgroundThere is little and conflicting information about anaerobic performance and functional strength in children with Developmental Coordination Disorder (DCD).AimsTo investigate anaerobic capacity and functional strength in children with a clinical diagnosis of DCD (clin-DCD) and if differences were larger in older (age 7–10 years) compared to younger children (age 4–6 years). Furthermore to determine the percentage of children with clin-DCD that scored <15th percentile on the norm-referenced Functional Strength Measurement.MethodA clin-DCD group (36 boys, 11 girls, mean age: 7y 1mo, SD = 2y 1mo) and a typically developing group (TD) (57 boys, 53 girls, mean age: 7y 5mo, SD = 1y 10mo) were compared on Muscle Power Sprint Test (MPST) and Functional Strength Measurement (FSM).ResultsChildren with clin-DCD performed poorer on the MPST and FSM, especially on the muscle endurance items of the FSM. The differences were larger in the older children compared to the younger on the cluster muscle endurance and the FSM total score. Over 50% of clin-DCD group scored <15th percentile on the FSM.InterpretationDifferences between children with clin-DCD and TD children are even more pronounced in the older children, especially when tested on items requiring fast repetitive movements.  相似文献   

3.
BackgroundAlthough Developmental Coordination Disorder (DCD) is primarily a motor disorder, it can also impact emotional and psychosocial functioning of children with this condition. Evidence suggests that children with DCD experience lower quality of life than their peers, but few studies have explicitly examined the health-related quality of life (HRQOL) of these children.AimsTo: (1) describe HRQOL of children with DCD compared to typically-developing children; (2) compare HRQOL from the perspectives of children with DCD and their parents; and (3) explore predictors of HRQOL for children with DCD.MethodsData from the KidScreen-52 and Strength and Difficulties Questionnaire were collected from 50 children with DCD [Mean(SD) age: 9.8 (1.2) years] and their parents and compared to normative data.ResultsChildren with DCD and their parents report significantly lower HRQOL compared to published norms. Caregivers have a significantly lower perception of their child’s HRQOL than their child’s self-report in many domains. Parents of children with DCD report that their children experience significantly more emotional and behavioral disturbances compared to norms. Poor motor function and attentional difficulties predict HRQOL.Conclusion and implicationsDCD appears to contribute to lower perceived HRQOL. Findings inform therapeutic targets for children with DCD, beyond motor skill intervention.  相似文献   

4.
The aims of this study were to determine the extent of ocular, motor control problems and the effect of visual therapy on such problems, among seven- to eight-year-old children diagnosed with DCD. Thirty-two, children with a mean age of 95.66 months (SD ± 3.54) participated in the study. The MABC was used to classify children into DCD categories (<15th, percentile) while the Sensory Input Systems Screening Test and QNST-II, were used to evaluate ocular motor control. A two-group pre-test–post-test, cross-over design was followed with a retention test two years, thereafter to determine the lasting effect of the visual therapy, intervention. The 18-week visual therapy programme was executed once a week, for 40 min during school hours, after which the two groups were, crossed over. Percentages of ocular motor control problems ranging, between 6.25% and 93.75% were found in both the groups before participating, in the visual therapy programme, with the highest percentage problems found, in visual pursuit with the left eye. Visual therapy contributed to a, significant improvement of 75–100% in visual pursuit, fixation, ocular, alignment and convergence, with significant lasting effects (p < 0.001). Visual therapy is recommended for children with DCD experiencing poor, ocular motor control.  相似文献   

5.
Difficulties with handwriting are reported as one of the main reasons for the referral of children with Developmental Coordination Disorder (DCD) to healthcare professionals. In a recent study we found that children with DCD produced less text than their typically developing (TD) peers and paused for 60% of a free-writing task. However, little is known about the nature of the pausing; whether they are long pauses possibly due to higher level processes of text generation or fatigue, or shorter pauses related to the movements between letters. This gap in the knowledge-base creates barriers to understanding the handwriting difficulties in children with DCD. The aim of this study was to characterise the pauses observed in the handwriting of English children with and without DCD. Twenty-eight 8–14 year-old children with a diagnosis of DCD participated in the study, with 28 TD age and gender matched controls. Participants completed the 10 min free-writing task from the Detailed Assessment of Speed of Handwriting (DASH) on a digitising writing tablet. The total overall percentage of pausing during the task was categorised into four pause time-frames, each derived from the literature on writing (250 ms to 2 s; 2–4 s; 4–10 s and >10 s). In addition, the location of the pauses was coded (within word/between word) to examine where the breakdown in the writing process occurred. The results indicated that the main group difference was driven by more pauses above 10 s in the DCD group. In addition, the DCD group paused more within words compared to TD peers, indicating a lack of automaticity in their handwriting. These findings may support the provision of additional time for children with DCD in written examinations. More importantly, they emphasise the need for intervention in children with DCD to promote the acquisition of efficient handwriting skill.  相似文献   

6.
We initially conducted a population-based study on developmental coordination disorder (DCD) in mainland China to explore the prenatal, perinatal and neonatal risk factors on DCD. A total of 4001 children were selected from 160 classes in 15 public nursery schools. The Movement Assessment Battery for Children-Second Edition (MABC-2) was used to assess the children's motor function. Crude and adjusted odds ratios were estimated to determine the strength of association using a multilevel logistic regression model with a random intercept. Three hundred and thirty children out of 4001 subjects met the DSM-IV criteria for DCD, and 3671 children were non-DCD. Maternal age, threatened abortion, fetal distress during labor, preterm birth, chronic lung disease and newborn pathological jaundice were related with DCD (OR = 1.72, 2.72, 9.14, 5.17, 1.43, and 2.54, respectively, each p < 0.05). Considered collectively, these risk factors may provide clues to an etiology of DCD. Additionally, the practitioners of maternity and child health care should improve the assessment and monitoring of the prenatal, perinatal and neonatal risk factors for DCD.  相似文献   

7.
For children with Developmental Coordination Disorder (DCD), the real-time coupling between frontal executive function and online motor control has not been explored despite reported deficits in each domain. The aim of the present study was to investigate how children with DCD enlist online control under task constraints that compel the need for inhibitory control. A total of 129 school children were sampled from mainstream primary schools. Forty-two children who met research criteria for DCD were compared with 87 typically developing controls on a modified double-jump reaching task. Children within each skill group were divided into three age bands: younger (6–7 years), mid-aged (8–9), and older (10–12). Online control was compared between groups as a function of trial type (non-jump, jump, anti-jump). Overall, results showed that while movement times were similar between skill groups under simple task constraints (non-jump), on perturbation (or jump) trials the DCD group were significantly slower than controls and corrected trajectories later. Critically, the DCD group was further disadvantaged by anti-jump trials where inhibitory control was required; however, this effect reduced with age. While coupling online control and executive systems is not well developed in younger and mid-aged children, there is evidence of age-appropriate coupling in older children. Longitudinal data are needed to clarify this intriguing finding. The theoretical and applied implications of these results are discussed.  相似文献   

8.
This study investigated the presence of, and relationship between tactile dysfunction and upper limb motor function in children with Developmental Coordination Disorder (DCD) compared to typical developing (TD) children. Participants were 36 children aged 6–12 years. Presence of DCD (n = 20) or TD (n = 16) was confirmed using the Movement Assessment Battery for Children, second edition. All children participated in a comprehensive assessment of tactile registration (Semmes Weinstein Monofilaments); tactile spatial perception (Single Point Localisation (SPL) and two-point discrimination (2PD)); haptic perception (Stereognosis); speed of simple everyday manual tasks (Jebsen–Taylor Test of Hand Function (JTTHF)); and handwriting speed and accuracy (Evaluation Tool of Children's Handwriting (ETCH)). Compared to TD children, children with DCD demonstrated poorer localisation of touch in the non-dominant hand (p = 0.04), slower speed of alphabet writing (p < 0.05) and less legible handwriting (p < 0.01), but no difference in speed of simple everyday manual tasks (JTTHF: p > 0.05). Regression analysis showed that spatial tactile perception (SPL) predicted handwriting legibility (ETCH: r = 0.11) and speed of functional tasks (JTTHF: r = 0.33). These results suggest that tactile function, specifically single point localisation, should be a primary tactile assessment employed to determine reasons for upper limb motor difficulties experienced by children with DCD.  相似文献   

9.
The study examined the relationship between motor skills, participation in leisure activities and quality of life (QOL), within a temporal context (school year vs. summer vacation and school days vs. weekends). Parents of 22 children with Developmental Coordination Disorder (DCD) and of 55 typically developing children, aged 6–11, filled out two questionnaires relating to their children's participation in leisure activities (vigorous, moderate and sedentary) and QOL. The Movement Assessment Battery for Children-2 (MABC-2) was administered to their children. Results showed that among the children with DCD, balance scores positively correlated with participation in sedentary activities, and in both groups both balance and aiming and catching were related to the physical and school aspects of QOL. Furthermore, participation in vigorous activities in the summer was positively correlated with social and school QOL. In contrast, among typically developing children, participation in vigorous activities during the school year was negatively correlated with school QOL. Finally, in both groups, participation in sedentary activities during school days was negatively correlated with school QOL. These results suggest that the parents’ perceptions of their children's QOL may be related to the level of activeness of the leisure activities but also to temporal aspects. Therefore, it is important that therapists and educators consider the temporal aspects, when consulting with parents and their children regarding participation in leisure activities.  相似文献   

10.
A valid tool that contributes to the diagnosis of Developmental Coordination Disorder (DCD) is represented by the Developmental Coordination Disorder Questionnaire 2007 (DCDQ’07). Recently we developed the Italian version of DCDQ (DCDQ-Italian). The aim of this study was to further analyze the psychometric properties in a sample of Italian school children aged 5–12 years and to establish cut-off scores with respect to age groups. A total of 698 parents completed the DCDQ-Italian and 45 of them repeated it after 2 weeks for test–retest reliability. One hundred and seventeen children were tested using the Movement Assessment Battery for Children. Confirmatory factor analysis supported this version to be consistent with the original. Cronbach's alpha for the total score was 0.89 and test–retest reliability was 0.88. Two-ways ANOVA for total and single subscales showed a significant main effect for age group only and not for gender. Sensitivity and specificity for our community based sample were 59% and 65% respectively, considering the cut-off scores for the 15th percentile of M-ABC and increasing when age groups were taken into account (ROC curve = 0.62). The agreement with the original was good if 15th is considered. This is the first study on the psychometric property of DCDQ in a community sample of Italian children. The DCDQ-Italian could be used as a screening tool for motor coordination difficulties in Italian children. Slight differences in cut-offs should be considered when using this version.  相似文献   

11.
Developmental Coordination Disorder (DCD) is characterized by clumsiness and coordination difficulties. DCD interferes with academic performance and participation in physical activities and psychosocial functions, such as self-esteem, cognition, or emotion, from childhood through adolescence to adulthood. DCD is a common pediatric condition and its prevalence is estimated to be 6% worldwide. Although English questionnaires are available, there is no questionnaire to identify DCD in Japan, and therefore, no information on its prevalence is available. Recently, we developed the Japanese version of the Developmental Coordination Disorder Questionnaire (DCDQ-J). The purpose of this study was to describe the applicability of the DCDQ-J for use with a community-based population of children in Japan and to investigate the relationships between coordination and attention-deficit hyperactivity disorder (ADHD) tendencies or intelligence. The DCDQ-J was completed by 6330 parents or guardians of children and adolescents. We employed the ADHD-rating scale and determined the intelligence quotient (IQ) of the children. Two-way analysis of variance showed that the scores linearly increased as the children's grades advanced in 2 subscales, namely, control during movement and fine motor. In contrast, non-linear changes were found in the scores of the general coordination subscale. The total scores of the DCDQ-J and ADHD-RS were significantly correlated, but no relationship between DCDQ-J scores and IQ was found. The DCDQ-J is expected to be a useful screening tool to identify and assess motor coordination difficulties of children in Japan and enable cross-cultural comparisons.  相似文献   

12.
目的为探讨独生子女情感障碍患者人格、心理防御机制及父母教养方式的关系。方法采用艾森克个性问卷(EPQ)、防御方式问卷(DSQ)、父母教养方式评价量表(EMBU)对住院的100例独生子女情感障碍患者和正常独生子女进行测评,其中患者在自知力恢复以后测评。结果独生子女情感障碍患者更多地使用投射、抱怨、幻想、退缩、躯体化等不成熟的防御机制,EPQ得分精神质、神经质、内外倾性高于正常独生子女(P〈0.01),相关分析发现,精神质、神经质与不成熟防御机制、中间防御机制呈正相关,内外倾性与成熟防御机制呈正相关,独生子女情感障碍患者的父母惩罚、父母拒绝、父亲保护、母亲干涉因子分高于正常独生子女(P〈0.01),而父亲温暖因子低于正常独生子女,相关分析发现,父母惩罚、父母拒绝、父母干涉、父亲保护与不成熟防御机制正相关,而父母温暖与不成熟防御机制负相关。结论独生子女情感障碍患者多使用不成熟防御机制、不良的父母教养方式,存在个性缺陷,且三者之间密切相关。  相似文献   

13.
The aim of this study was to adapt and evaluate the Developmental Coordination Disorder Questionnaire (DCDQ) for use in Chinese-speaking countries. A total of 1082 parents completed the DCDQ and 35 parents repeated it after 2 weeks for test–retest reliability. Two items were deleted after examination of test consistency. Cronbach's α for the total score was 0.89 and test–retest reliability was 0.94. Exploratory and confirmatory factor analyses showed this version to be compatible with the original and two adaptations of the DCDQ. One-way ANOVA and the post hoc tests revealed that the non-DCD group scored significantly higher than the DCD group and the suspect DCD group, but the latter two did not differ significantly. Sensitivity and specificity of the DCDQ were 73% and 54%. The estimated area under the Receiver Operating Characteristic curve was 0.68. Compared to the dichotomized grouping in assessing sensitivity and specificity, which provides clinicians with all or none information about a child's probability of being DCD, the informative conditional effect plot could alert clinicians to the child with less conspicuous movement problems. This adaptation of the DCDQ could be used for identifying motor coordination problems in Chinese-speaking societies.  相似文献   

14.
We assessed the non-academic and academic functioning of young adults with DCD, and investigated the emotional influences and the role of strategy use within this population. A random sample of 2379 adolescents and young adults aged 19-25 (1081 males [45.4%]; mean age=20.68, SD=3.42) was used to develop the instruments. From this sample, three study groups were identified (n=429) based on the Adolescents & Adults Coordination Questionnaire: probable DCD (n=135; 67.2% males), suspected borderline DCD (n=149; 51.4% males) and control (145; 70.5% males). Participants completed the Daily Life Functions Questionnaire (assessing non-academic and academic functioning), the Recent Emotional State Test (assessing feelings resulting from task performance), the Internal Factors Attributed to Success Questionnaire and the Problem Solving Questionnaire to assess strategy and executive strategy use. A MANOVA revealed statistically significant differences between-groups (F[7,422]=16.19; p<.001; η=.197); post hoc analyses revealed differences for all measures (except the Problem Solving Questionnaire), with the probable DCD and suspected borderline DCD groups performing worse than controls. Severity of motor deficits was correlated with all outcomes except strategy use. Logistic regression revealed that non-academic functioning was the most significant predictor of group placement (B=-1.32; p<.001); academic functioning/handwriting was the second most significant predictor (B=0.44; p=.047). Deficits in motor coordination continue into adulthood and have an effect on academic and non-academic function, as well as on the emotional state of the individual.  相似文献   

15.
Children with Developmental Coordination Disorder (DCD) often experience difficulties in handwriting. The current study examined the relationships between three motor assessments and the spatial and temporal consistency of handwriting. Twelve children with probable DCD and 29 children from 7 to 12 years who were typically developing wrote the lowercase letters “e” and “l” in cursive and printed forms repetitively on a digitizing tablet. Three behavioral assessments, including the Beery–Buktenica Developmental Test of Visual-Motor Integration (VMI), the Minnesota Handwriting Assessment (MHA) and the Movement Assessment Battery for Children (MABC), were administered. Children with probable DCD had low scores on the VMI, MABC and MHA and showed high temporal, not spatial, variability in the letter-writing task. Their MABC scores related to temporal consistency in all handwriting conditions, and the Legibility scores in their MHA correlated with temporal consistency in cursive “e” and printed “l”. It appears that children with probable DCD have prominent difficulties on the temporal aspect of handwriting. While the MHA is a good product-oriented assessment for measuring handwriting deficits, the MABC shows promise as a good assessment for capturing the temporal process of handwriting in children with DCD.  相似文献   

16.
The present study investigates developmental changes in selective inhibition of symmetric movements with a lateralized switching task from bimanual to unimanual tapping in typically developing (TD) children and with Developmental Coordination Disorder (DCD) from 7 to 10 years old. Twelve right-handed TD children and twelve gender-matched children with DCD and probable DCD produce a motor switching task in which they have (1) to synchronize with the beat of an auditory metronome to produce bimanual symmetrical tapping and (2) to selectively inhibit their left finger's tapping while continuing their right finger's tapping and conversely. We assess (1) the development of the capacity to inhibit the stopping finger (number of supplementary taps after the stopping instruction) and (2) the development of the capacity to maintain the continuing finger (changes in the mean tempo and its variability for the continuing finger's tapping) and (3) the evolution of performance through trials. Results indicate that (1) TD children present an age-related increase in the capacity to inhibit and to maintain the left finger's tapping, (2) DCD exhibits persistent difficulties to inhibit the left finger's tapping, and (3) both groups improve their capacity to inhibit the left finger's movements through trials. In conclusion, the lateralized switching task provides a simple and fine tool to reveal differences in selective inhibition of symmetric movements in TD children and children with DCD. More theoretically, the specific improvement in selective inhibition of the left finger suggests a progressive development of inter-hemispheric communication during typical development that is absent or delayed in children with DCD.  相似文献   

17.
PurposeTo explore the differences in learning a dynamic balance task between children with and without probable Developmental Coordination Disorder (p-DCD) from different cultural backgrounds.ParticipantsTwenty-eight Dutch children with DCD (p-DCD-NL), a similar group of 17 South African children (p-DCD-SA) and 21 Dutch typically developing children (TD-NL) participated in the study.MethodsAll children performed the Wii Fit protocol. The slope of the learning curve was used to estimate motor learning for each group. The protocol was repeated after six weeks. Level of motor skill was assessed with the Movement ABC-2.ResultsNo significant difference in motor learning rate was found between p-DCD-NL and p-DCD-SA, but the learning rate of children with p-DCD was slower than the learning rate of TD children. Speed–accuracy trade off, as a way to improve performance by slowing down in the beginning was only seen in the TD children, indicating that TD children and p-DCD children used different strategies. Retention of the level of learned control of the game after six weeks was found in all three groups after six weeks. The learning slope was associated with the level of balance skill for all children. This study provides evidence that children with p-DCD have limitations in motor learning on a complex balance task. In addition, the data do not support the contention that learning in DCD differs depending on cultural background.  相似文献   

18.
Co-morbidity of Developmental Coordination Disorder (DCD) in children with specific language impairment (SLI) and the impact of DCD on quality-of-life (QOL) was investigated in 65 5–8 year old children with SLI (43 boys, age 6.8 ± 0.8; 22 girls, age 6.6 ± 0.8). The prevalence of DCD was assessed using DSM-IV-TR criteria (American Psychiatric Association (APA), 2000) operationally defined in the clinical practice guideline (CPG): movement ABC scores below 15th percentile, scores on DCDQ and/or MOQ-T below 15th percentile, absence of medical condition according to paediatric-neurological exam. Quality of life (QOL) was measured with the TNO-AZL-Child-Quality-Of-Life (TACQOL) Questionnaire filled out by parents for the SLI group with and without DCD, and compared to a reference group (N = 572; age 6.9 ± 0.9). The TACQOL covers 7 QOL domains: physical, motor, cognitive and social functioning, autonomy, positive and negative moods. Prevalence of DCD in children with SLI was 32.3%. In children with SLI, mean QOL scores were significantly lower in the autonomy, cognitive, social and positive moods domains compared to the reference group. Children with SLI and DCD differed from children with SLI without DCD by significantly lower mean overall-, motor-, autonomy-, and cognitive domain-QOL scores. Clinicians should be aware that about one third of children with SLI can also be diagnosed with DCD. Assessment of QOL is warranted in order to assess which domains are affected in children with SLI with or without DCD.  相似文献   

19.
BackgroundEarly recognition of children at risk of Developmental Coordination Disorder (DCD) is important, but variability in motor development in preschool children affects the validity of instruments to reliably detect children at risk of DCD.AimsTo investigate the age-related validity and reliability of the Dutch version of the Little Developmental Coordination Disorder Questionnaire (LDCDQ-NL).Methods and proceduresTwo hundred and sixty 3- to 5-year old children were recruited in the Netherlands. Parents filled out the LDCDQ-NL and children were assessed with the Movement Assessment Battery for Children-2 Test (MABC-2 Test). Internal consistency of the LDCDQ-NL was determined by Cronbach’s alpha. Construct validity was investigated using factor analysis. Concurrent validity was measured by calculating correlations between the LDCDQ-NL and MABC-2. Receiver Operating Characteristics (ROC) were calculated to assess discriminant validity.Outcomes and resultsInternal consistency of the LDCDQ-NL was 0.91. Factor analysis resulted in three factors (Fine motor skills, Locomotor skills, Ball skills). Correlation between the LDCDQ-NL and MABC-2 Test increased with increasing age. With a sensitivity of 80%, specificity increased with age.Conclusions and implicationsThe LDCDQ-NL is a reliable and valid screening instrument for 4- and 5-year old Dutch children; concurrent and discriminant validity are low for 3-year olds.  相似文献   

20.
Participation is a person's involvement in daily activities in a variety of environments, roles and life situations. Children with Developmental Coordination Disorder (DCD) experience difficulties in gaining academic achievements or in their engagement in activity of daily living. Motor difficulties have a negative effect on the ability to participate, as well as on various affective components. Senses of coherence, effort and hope have not yet been assessed, within the context of participation, in children with DCD. The purpose of the present study is to look into the relations between participation and senses of coherence, effort and hope among children with DCD, in comparison to typically developed children. Fifty subjects aged 5–6 years participated in the study, 25 of whom are children diagnosed with DCD, the other 25 being typical children. The DCD diagnosis was established according to the DSM-IV criteria and the M-ABC test. All children completed the coherence questionnaire for children as well as the children's questionnaire on effort and hope. Parents completed the Children Participation Questionnaire (CPQ), and the Performance Skills Questionnaire (PSQ). Children with DCD had lower performance skills, lower sense of coherence, hope, and effort than their peers. They less enjoy their participation and their parents are less satisfied in comparison to control group. Significant correlations were found between sense of coherence and hope to participation. Process skills were found to be the main predictor for explaining child's participation. While treating children with DCD we have to consider also socio-psychological aspects that may be weakened.  相似文献   

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