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The parent-rated Developmental Coordination Disorder Questionnaire (DCDQ) has been revised to incorporate a wider age range, including adolescence. In this exploratory study, internal consistency and validity of the DCDQ-2007 was assessed using a community-based sample of 87 adolescents. Psychometric properties of the DCDQ-2007 were investigated and concurrent validity, sensitivity, and specificity were assessed with the MABC-2 as a criterion standard. The results demonstrated high internal consistency for the DCDQ-2007 and a relationship with the MABC-2 was found. The DCDQ-2007 met the recommended standard for sensitivity, although the confidence interval was large; however, it failed to meet the recommended standard for specificity. This has important implications concerning the suitability of the DCDQ-2007. Although promising psychometric properties were found within the current study, the applicability of the DCDQ- 2007 as a screening measure for motor difficulties requires careful consideration. [ABSTRACT FROM AUTHOR]

The parent-rated Developmental Coordination Disorder Questionnaire (DCDQ) has been revised to incorporate a wider age range, including adolescence. In this exploratory study, internal consistency and validity of the DCDQ-2007 was assessed using a community-based sample of 87 adolescents. Psychometric properties of the DCDQ-2007 were investigated and concurrent validity, sensitivity, and specificity were assessed with the MABC-2 as a criterion standard. The results demonstrated high internal consistency for the DCDQ-2007 and a relationship with the MABC-2 was found. The DCDQ-2007 met the recommended standard for sensitivity, although the confidence interval was large; however, it failed to meet the recommended standard for specificity. This has important implications concerning the suitability of the DCDQ-2007. Although promising psychometric properties were found within the current study, the applicability of the DCDQ- 2007 as a screening measure for motor difficulties requires careful consideration. [ABSTRACT FROM AUTHOR]

Aim: The Animal Fun program, a universal early intervention program that aims to promote the motor skills and social-emotional development of young children, has shown to improve overall motor proficiency and social and behavioural outcomes. The aim of the current study was to evaluate the program's impact on children's aiming and catching, and balance skills.Methods: A cluster randomised control trial was employed, with six intervention and six control (following normal curriculum) schools. A total sample of 511 children (257 boys and 254 girls), aged 4-6 years presented at pre-test. Children were tested across three time points, pre-test, post intervention (six months later) and follow-up (18 months after pre-test), using the Movement Assessment Battery for Children-2 Aiming and Catching, and Balance tasks. The study also tested for potential moderators including pre-test motor proficiency, age, gender, and cognitive performance.Results: Participation in Animal Fun improved children's one leg balance at post-test and follow-up compared to control children, regardless of pre-test motor proficiency, age, gender, or pre-test cognitive performance. Participation in Animal Fun also improved throwing skills for those children with poorer motor proficiency compared to the controls with poorer motor performance. Interestingly, it was found that the control group's catching skills improved more than the intervention group at follow up.Conclusions: The study provides some promising results regarding the efficacy of the Animal Fun program in improving one-leg balance for all children, and throwing skills for those children with poorer motor proficiency, while also suggesting potential confounding factors, such as maturational issues and other individual factors (e.g., a child's participation in extracurricular activity). [ABSTRACT FROM AUTHOR]

Background: The Environmental Stress Hypothesis provides a conceptual framework detailing the complex relationship between poor motor skills and internalizing problems.Aims: This integrative research aimed to synthesize studies that have evaluated complex pathways posited in the framework.Method: This study followed the four stages of an integrative research review: (i) problem formation and research aims, (ii) literature search and data collection, (iii) data evaluation and analysis, and (iv) results and discussion.Outcomes and Results: Twelve peer-reviewed, English language studies published within 2010-2018 were identified. These used mostly cross-sectional, correlational methods and provided varying levels of support for relationships posited in the framework in samples spanning early childhood to adulthood. Compared to intrapersonal factors (e.g., self-esteem/ perceived competence), interpersonal factors (e.g., social support, peer problems) were found to more strongly and consistently mediate the relationship between motor skills and internalizing problems.Conclusions and Implications: There is growing empirical support for many of the Environmental Stress Hypothesis pathways. However, research to date is limited in the ability to establish causal relationships between variables, which is integral to the Environmental Stress Hypothesis. Intervention studies provide a useful type of experimental research that could establish causality between variables, while working to improve the physical and psychosocial functioning of people with poor motor skills. [ABSTRACT FROM AUTHOR]

Background: The elaborated environmental stress hypothesis (EESH) provides a framework that describes how motor skills may indirectly cause internalizing problems through various mediating psychosocial factors. While there is evidence to support this framework, little is known about how the proposed relationships may vary across different stages of development. Aims: This study aimed to investigate whether peer problems and perceived self‐competence mediated the relationship between motor skills and internalizing problems in pre‐primary children, and at 18‐month follow up. Sample: A community sample of 197 pre‐primary school children (M = 5.40 years, SD = 0.30 years; 102 males, 95 females) participated at Time 1, with 107 completing the Time 2 follow‐up. Methods: Standardized instruments were used to measure motor skills and verbal IQ. Perceived self‐competence was measured using a self‐report measure. Participant peer problems and internalizing problems were measured using teacher report. Age, gender, and verbal IQ were included as covariates. Results: Mediation analysis using PROCESS showed that the relationship between motor skills and internalizing problems was mediated by peer problems at Time 1. At Time 2, the relationship was mediated by peer problems and perceived physical competence. Conclusions: The current results indicate the EESH may function differently across different periods of development. The transition from pre‐primary to Grade 1 represents a time of important cognitive and psychosocial development, which has implications for how the relationship between motor skills and internalizing problems can be understood. These findings highlight potential age‐appropriate targets for psychomotor interventions aiming to improve the emotional well‐being of young children. [ABSTRACT FROM AUTHOR]

Abstract: Poor motor skills have been associated with a range of interpersonal and intrapersonal difficulties, including poor self‐competence, peer problems, and internalizing problems such as anxiety and depression. The Elaborated Environmental Stress Hypothesis provides a theoretical framework for understating these relationships. Studies have recently begun to evaluate this framework; however, ongoing empirical investigation is required. Currently, the extent to which these relationships may differ across factors such as gender remains unclear. The current study tests an indirect effect of motor skills on internalizing problems via peer problems and perceived self‐competence in a community sample of 164 children (81 males; 83 females) aged 7 to 12 years. A combination of clinician‐administered, self‐report, and parent‐rated measures were used. Regression analysis using PROCESS indicated that the relationship between motor skills and internalizing problems was not moderated by gender. Motor skills did have an indirect effect on internalizing problems via perceived scholastic competence and peer problems. Results provide partial support for part of the Elaborated Environmental Stress Hypothesis; perceived scholastic competence and peer problems are mechanisms through which motor skills are related to internalizing problems in school‐aged children. This study highlights potentially important targets for psychomotor interventions for this age group. Highlights: The Environmental Stress Hypothesis suggests that motor skills may have an indirect effect on internalizing problems via factors such as peer problems and perceived self-competence. A community sample of 164 children aged 7–12 years provided measures of motor skills and psychosocial functioning. Motor skills had an indirect effect on internalizing problems via perceived scholastic competence and peer problems. This relationship was not moderated by gender. [ABSTRACT FROM AUTHOR]

Background: Research has suggested an important association between motor proficiency and overweight/obesity. Many children with motor difficulties experience ADHD symptoms which have also been linked with overweight/obesity. Previous research has not considered both ADHD and motor performance when investigating their relationship with overweight/obesity.Aims: To investigate the relationships between motor performance, ADHD symptoms, and overweight/obesity in children.Methods and Procedures: A cross-sectional study was conducted involving189 children aged six to 10 years. Symptoms of ADHD were identified using the SNAP-IV rating scale. Motor impairment (MI) was identified using the Movement Battery Assessment for Children-2. Body composition was estimated from the Body Mass Index (BMI) based on World Health Organization child growth standards.Outcomes and Results: Balance was the only motor skill associated with BMI even after controlling for gender and ADHD. Group comparisons revealed that the proportion of overweight ADHD children was significantly less than the proportion of overweight control children and overweight MI children; the proportion of underweight ADHD children was significantly greater than the proportion of underweight MI children.Conclusions and Implications: The results highlight the importance of taking into consideration both ADHD symptoms and motor difficulties in the assessment and intervention of physical health outcomes in children with ADHD and/or movement problems. [ABSTRACT FROM AUTHOR]

Attention deficit hyperactivity disorder (ADHD) has been described as the most prevalent behavioral disorder in children. Developmental coordination disorder (DCD) is one of the most prevalent childhood movement disorders. The overlap between the two conditions is estimated to be around 50%, with both substantially interfering with functioning and development, and leading to poorer psychosocial outcomes. This review provides an overview of the relationship between ADHD and DCD, discussing the common presenting features, etiology, neural basis, as well as associated deficits in motor functioning, attention and executive functioning. It is currently unclear which specific motor and cognitive difficulties are intrinsic to each disorder as many studies of ADHD have not been screened for DCD and vice-versa. The evidence supporting common brain underpinnings is still very limited, but studies using well defined samples have pointed to non-shared underpinnings for ADHD and DCD. The current paper suggests that ADHD and DCD are separate disorders that may require different treatment approaches. [ABSTRACT FROM AUTHOR]

Abstract: The aim of the current study was to examine the relationship between motor coordination and visual working memory in children aged 5–11years. Participants were 18 children with movement difficulty and 41 control children, assessed at baseline and following an 18-month time period. The McCarron Assessment of Neuromuscular Development provided a measure of motor skills and the CogState One-Back task was used to assess visual working memory. Multi-level mixed effects linear regressions were used to assess the relationship between fine motor skills, gross motor skills, and visual working memory. The results revealed that for children with movement difficulty, better fine motor skills at baseline significantly predicted greater One-Back accuracy and greater (i.e., faster) speed at 18-month follow-up. Conversely, fine motor skills at baseline did not predict One-Back accuracy and speed for control children. However, for both groups, greater One-Back accuracy at baseline predicted better fine and gross motor skills at follow-up. These findings have important implications for the assessment and treatment of children referred for motor difficulties and/or working memory difficulties. [Copyright &y& Elsevier]

Highlights: [•] DCD is associated with higher rates of internalizing problems in children. Why is not known. [•] In a previous paper, the environmental stress hypothesis was introduced as one explanation. [•] In this paper, we elaborate further on this hypothesis, presenting a modified stress process model. [•] In addition, we consider the role that both physical inactivity and obesity might play in this model. [•] We review literature that supports the model, identify gaps in knowledge and discuss implications for intervention. [Copyright &y& Elsevier]

The aim of the present study was to examine whether the relationship between motor coordination and academic achievement is mediated by working memory (WM) in a normative adolescent sample. Participants included 93 adolescents aged 12–16. The Movement Assessment Battery for Children-2 provided three indicators of motor coordination (Manual Dexterity, Aiming and Catching, and Balance), the WM Index of the Wechsler Intelligence Scale for Children-IV and the N-back paradigm provided two indicators of WM, and the Wechsler Individual Achievement Test-II provided three indicators of academic achievement (Word Reading, Spelling, and Numerical Operations). Structural equation modeling, controlling for verbal comprehension, attention deficit hyperactivity disorder symptoms, and socioeconomic status, suggested that the association between motor coordination and academic achievement may be best understood in terms of a mechanism whereby motor coordination (specifically, Aiming and Catching skills) has an indirect impact on academic outcomes via WM. These findings have important implications for the assessment and treatment of motor coordination and learning difficulties as well as in increasing the understanding of the possible neural mechanisms underpinning the relationship between these areas. [ABSTRACT FROM AUTHOR]

Aim Research suggests important links between motor coordination and executive functions. The current study examined whether motor coordination predicts working memory, inhibition, and switching performance, extending previous research by accounting for attention-deficit-hyperactivity disorder (ADHD) symptomatology and other confounding factors, in an adolescent normative sample. Method Ninety-three adolescents (38 females, 55 males) aged 12 to 16 years (mean age 4y 2mo, SD 1y 1mo) were assessed on the Movement Assessment Battery for Children-2 (MABC-2), Wechsler Intelligence Scale for Children-IV, N-back task, the inhibition subtest from the NEPSY-II: A Developmental Neuropsychological Assessment, second edition, and the parent-rated Strengths and Weaknesses of ADHD Symptoms and Normal Behaviour Questionnaire. Results The MABC-2 total score accounted for a significant proportion of the variance in visuospatial working memory ( p=0.041) but not for verbal working memory. The MABC-2 aiming and catching component, however, was found to account for unique variance in both verbal ( p=0.019) and visuospatial working memory ( p=0.016). The MABC-2 total score was found to account for a significant proportion of the variance in inhibition total completion time ( p=0.017). Finally, balance skills accounted for unique variance in a NEPSY-II inhibition total errors variable ( p=0.020). Interpretation The results provide support for an overlap between motor coordination and executive functions, which has important practical implications. The study also suggests shared mechanisms underpinning the relationship between these areas, including possible cerebellar involvement. [ABSTRACT FROM AUTHOR]

Previous research has demonstrated a link between attention-deficit/hyperactivity disorder (ADHD), developmental coordination disorder (DCD), and depression. The present study utilized a monozygotic (MZ) differences design to investigate differences in depressive symptomatology between MZ twins discordant for ADHD or DCD. This extends previous research as it controls for genetic effects and shared environmental influences and enables the investigation of nonshared environmental influences. In addition, children and adolescents with comorbid ADHD and DCD were compared on their level of depressive symptomatology to those with ADHD only, DCD only, and no ADHD or DCD. The parent-rated Strengths and Weaknesses of ADHD Symptoms and Normal Behavior, Developmental Coordination Disorder Questionnaire, and Sad Affect Scale were used to assess ADHD, DCD, and depressive symptomatology respectively. The results revealed higher levels of depressive symptomatology in MZ twins with ADHD or DCD compared to their nonaffected co-twins. In addition, children and adolescents with comorbid ADHD and DCD demonstrated higher levels of depressive symptomatology compared to those with ADHD only, DCD only, and no ADHD or DCD. The implications of these findings are discussed with emphasis on understanding and recognizing the relationship between ADHD, DCD, and depression in the assessment and intervention for children and adolescents with these disorders. [ABSTRACT FROM AUTHOR]

Background: The self‐concept of children has an impact on later behavioural development and psychopathology; therefore, evidence of the accurate measurement of self‐concept is important. Harter and Pike's (1984, Child Development, 55, 1969) commonly used measure of self‐concept, the Pictorial Scale of Perceived Competence and Social Acceptance for Children, has demonstrated varying evidence of its construct validity and reliability, particularly with preschool‐ or kindergarten‐aged participants. Aim: To examine the measurement properties of the Acceptance and Competence measures, and to substantiate the measures' adequacy within the latter participant age range. Sample: One hundred and ninety‐seven preschool or kindergarten‐aged children (M = 5.40 years, SD = 0.30) provided data as part of the Animal Fun study over three measurement periods. Methods: The study conducted a pair of Rasch analyses on the Acceptance and Competence measures described prior, with adherence to the assumptions of univariate measurement, item fit, item invariance, and response category adequacy examined as part of these analyses. Results: While the Acceptance measure demonstrated adequate reliability outside of some potentially misfitting items, the study identified several limitations for the Competence measure, including potential gender‐based and verbal IQ‐based response biases. Conclusions: Practitioners and research applications of these subscales may benefit from the response recoding recommendations provided in this study for the Acceptance measure, as they improved the measure's properties. The study provides potential solutions to item adequacy concerns, and avenues for future research, involving these measures. [ABSTRACT FROM AUTHOR]

Animal Fun was designed to enhance motor and social development in young children. Its efficacy in improving motor skills was presented previously using a randomised controlled trial and a multivariate nested cohort design. Based on the Environmental Stress Hypothesis, it was argued that the program would also result in positive mental health outcomes, investigated in the current study. Pre-intervention scores were recorded for 511 children aged 4.83-6.17 years (M=5.42, SD=.30). Intervention and control groups were compared 6 months following intervention, and again in their first school year. Changes in teacher-rated prosocial behaviour and total difficulties were assessed using the Strengths and Difficulties Questionnaire, and data analysed using Generalised Linear Mixed Models. There was a significant improvement in prosocial behaviour of children in the intervention group six months after initial testing, which remained at 18-month follow-up. Total difficulties decreased at 6 months for the intervention group, with no change at 18 months. This effect was present only for the hyperactivity/inattention subscale. The only significant change for the control group was an increase in hyperactivity/inattention scores from pre-intervention to 18-month follow-up. The Animal Fun program appears to be effective in improving social and behavioural outcomes. [ABSTRACT FROM AUTHOR]

Objective: To compare both global and specific domains of motor development of children with attention deficit hyperactivity disorder (ADHD) with that of typically developing children. Methods: Two hundred children (50 children with clinical diagnoses of ADHD, according to the DSM-IV-TR and 150 typically developing controls), aged 5 to 10 years, participated in this cross-sectional study. The Motor Development Scale was used to assess fine and global motricity, balance, body schema, and spatial and temporal organization. Results: Between-group testing revealed statistically significant differences between the ADHD and control groups for all domains. The results also revealed a deficit of nearly two years in the motor development of children with ADHD compared with the normative sample. Conclusion: The current study shows that ADHD is associated with a delay in motor development when compared to typically developing children. The results also suggested difficulties in certain motor areas for those with ADHD. These results may point to plausible mechanisms underlying the relationship between ADHD and motor difficulties. [ABSTRACT FROM AUTHOR]

Abstract: The aim of this study was to investigate the relationship between poor motor ability and anxious and depressive symptomatology in child and adolescent monozygotic twins. The co-twin control design was used to explore these mental health issues in MZ twins concordant and discordant for a motor disorder, and controls. This methodology offers the unique opportunity to control for genetic effects and shared environmental influences, and permits the investigation of non-shared environmental influences. The Developmental Coordination Disorder Questionnaire was used to identify 23 sets of twins discordant for a motor disorder, 23 sets concordant for a motor disorder, and 773 sets of twins with no motor disorder from a total sample of 2122 Australian sets of twins. The Strengths and Weaknesses of ADHD Symptoms and Normal Behaviour questionnaire was used to exclude participants with high Attention Deficit Hyperactivity Disorder symptomatology. Anxious and depressive symptomatology were assessed using Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) based questionnaires on Generalised Anxiety Disorder and Sad Affect. Results indicated significantly higher levels of anxious and depressive symptomatology in twins with a motor disorder in discordant pairs compared to their co-twins without a motor disorder, and controls. There were significantly higher levels of anxious symptomatology in twins with a motor disorder in discordant sets than in sets of twins concordant for a motor disorder. There were significantly higher levels of anxious symptomatology in concordant twins than in controls. Implications of these findings are discussed with emphasis on understanding and recognising the relationship between a motor disorder and anxious and depressive symptomatology in clinical practice for children and adolescents with these disorders. [Copyright &y& Elsevier]

We previously described a co-twin control design using questionnaire data on monozygotic twins discordant and concordant for developmental coordination disorder (DCD) and attention deficit hyperactivity disorder (ADHD). Our results suggested that DCD and developmental ADHD had different causal pathways, and that second-born twins were at higher risk for oxygen perfusion problems than first-born twins. In the current study we further explored our findings using DNA confirmed zygosity and assessments of 4 female and 10 male sets of monozygotic twins, aged 8 to 17 years, from the first study. Using the McCarron Assessment of Neuromuscular Development (MAND), twice as many second- as first-born twins met criteria for DCD. Second-born twins attained significantly lower scores on 1-minute Apgar, MAND Gross Motor, Bimanual Dexterity and Neuromuscular Development Index. Seven of the nine twins who met criteria for DCD experienced perinatal oxygen perfusion problems. This supported findings in the first study of an association between perinatal oxygen perfusion problems and DCD, and our hypothesis that DCD and cerebral palsy have similar causal pathways. We found similar numbers of males and females discordant for DCD. On telephone interview using the Diagnostic Interview Schedule for Children Parent Interview, the only first-, and all five second-born twins who met criteria for ADHD had an inattentive component - three Inattentive; three Combined. All twins positive for ADHD were male. This adds support to our hypothesis that ADHD symptoms found in some participants may reflect secondary ADHD associated with environmental factors, rather than developmental ADHD. [ABSTRACT FROM AUTHOR]

Aim: Aboriginal young people are more likely to experience mental health issues and to access mental health services than other young Australians, yet there are few culturally informed mental health programs and services available. This study describes and documents the effectiveness of the culturally sensitive model within YouthLink, a state‐wide mental health service program in Western Australia for young people aged 13 to 24 years of age. Methods: A mixed‐method design including a descriptive approach reporting on the YouthLink framework and an empirical research design where 40 Aboriginal clients completed client feedback monitoring measures between 2014 and 2016. Results: The YouthLink culturally informed conceptual framework adheres to best practice principles relevant to work with Indigenous people, family and communities. Aboriginal young people indicated improvement across the treatment period as shown by within‐group differences between the first and last session scores on feedback measures. Therapeutic alliance (together with lower baseline acuity and female gender) also contributed significantly to positive treatment outcomes. Conclusions: Through a strong role of Aboriginal practitioners, relationships with Aboriginal communities, and greater service flexibility that embraces cultural meaning and knowledge, YouthLink has sought to enhance its response to the needs of Aboriginal youth. [ABSTRACT FROM AUTHOR]

Introduction: Previous research indicates that children with Developmental Coordination Disorder (DCD) show deficits performing online corrections, an issue exacerbated by adding inhibitory constraints; however, cross-sectional data suggests that these deficits may reduce with age. Using a longitudinal design, the aim of the study presented here was to model the coupling that occurs between inhibitory systems and (predictive) online control in typically developing children (TDC) and in those with Developmental Coordination Disorder (DCD) over an extended period of time, using a framework of interactive specialization. We predicted that TDC would show a non-linear growth pattern, consistent with re-organisation in the coupling during the middle childhood period, while DCD would display a developmental lag.Method: A group of 196 children (111 girls and 85 boys) aged between 6 and 12years participated in the study. Children were classified as DCD according to research criteria. Using a cohort sequential design, both TDC and DCD groups were divided into age cohorts. Predictive (online) control was defined operationally by performance on a Double-Jump Reaching Task (DJRT), which was assessed at 6-month intervals over two years (5 time points in total). Inhibitory control was examined using an anti-jump condition of the DJRT paradigm whereby children were instructed to touch a target location in the hemispace opposite a cued location.Results: For the TDC group, model comparison using growth curve analysis revealed that a quadratic trend was the most appropriate fit with evidence of rapid improvement in anti-reach performance up until middle childhood (around 8-9years of age), followed by a more gradual rate of improvement into late childhood and early adolescence. This pattern was evident on both chronometric and kinematic measures. In contrast, for children with DCD, a linear function provided the best to fit on the key metrics, with a slower rate of improvement than controls.Conclusion: We conclude that children with DCD require a more extended period of development to effectively couple online motor control and executive systems when completing anti-reach movements, whereas TDC show rapid improvement in early and middle childhood. These group differences in growth curves are likely to reflect a maturational lag in the development of motor-cognitive networks in children with DCD. [ABSTRACT FROM AUTHOR]

Abstract: Research has identified a relationship between social–emotional problems and motor impairment in both pre-school and school-age children. The aim of the current study was to determine how motor performance in infancy and early childhood is related to levels of anxious and depressive symptomatology at age 6–12years. Fifty participants were assessed by their parents 11 times between the ages of 4months and 4years using the Ages and Stages Questionnaire (ASQ), and once between the age of 6 and 12years using the Child Behavior Checklist (CBCL). The ASQ scores were used to obtain the stability (variance) of fine and gross motor performance. Once gestational age, sex and age of testing were taken into account, the stability of gross motor scores predicted both the anxiety/depression measure and the anxious score from the CBCL. It appears that how variable a young child’s gross motor development is from 4months to 4years predicts the level of anxious/depressive symptoms at school age. These findings may assist in the early identification of children at risk of anxiety disorders and depression at school age. [Copyright &y& Elsevier]