Use of geometry and featural cues in landmark configurations to reorient DCD children to the VR space: A route-learning study / Uso de señales geométricas y caracterológicas en configuraciones de puntos de referencia para reorientar a los niños con TDC hacia el espacio de realidad virtual: Un estudio de aprendizaje de rutas

Abstract Background: Working memory-based spatial cognition has attracted the attention of the scientific community in navigation and reorientation projects. The dominant approach considers that spontaneous spatial navigation behavior is based merely on environmental geometry (built and natural environmental objects). In this domain, DCD (Developmental Coordination Disorder) motor skill orientation problems have been frequently associated with poor visuospatial cognition, while immersive VR environments encourage more repetition, allowing for faster motor skill development and recovery. Objective: This pilot study tested the functionality of an immersive VR environment with environmental geometry (rectangular arena rich in symmetry) and featural landmark cues (striped wall, flora) as a route-learning tool for children with motor skill disorders. Methods: Forty DCD children aged 5 to 8 years (20 boys and 20 girls); five (5) 3D reality modeling setups with orthogonality, symmetry, and striped walls as design parameters; and trial walk-through coordination exercises using a predefined visual pathway with different motor control conditions (daylight, darkness). Participants' path completion rate, path completion time, and walk-through satisfaction were recorded as route-learning performance variables and analyzed statistically. Results/findings: DCD children's spatial orientation was statistically shown to be more stable and robust (in path completion rates, termination time, and walk-through level of satisfaction) in a virtual 3D environment rich in orthogonality, symmetry, and featural cues as landmarks. In this compound environmental geometry setup, training functionality and immersive learning performance enjoyed an 8.16% better path completion rate, a 12.37% reduction in path completion time, and 32.10% more walk-through satisfaction than reality modeling setups poor in geometry and landmarks. The effectiveness and robustness were validated statistically. Conclusion: Children with motor skill difficulties train and learn better in virtual 3D environments that are rich in orthogonality, symmetry, and featural landmark cues.

Resumen Antecedentes: La cognición espacial basada en la memoria de trabajo ha atraído la atención de la comunidad científica en proyectos de navegación y reorientación. El enfoque dominante considera que el comportamiento espontáneo de navegación espacial se basa meramente en la geometría ambiental (objetos ambientales construidos y naturales). En este ámbito, los problemas de orientación de las habilidades motoras del TDC (Trastorno del Desarrollo de la Coordinación) se han asociado con frecuencia a una cognición visoespacial deficiente, mientras que los entornos de RV (Realidad Virtual) inmersivos fomentan una mayor repetición, lo que permite un desarrollo y una recuperación más rápidos de las habilidades motoras. Objetivo: Este estudio piloto probó la funcionalidad de un entorno de RV inmersiva con geometría ambiental (arena rectangular rica en simetría) y señales de puntos de referencia característicos (pared rayada, flora) como herramienta de aprendizaje de rutas para niños con trastornos de la habilidad motora. Métodos: Cuarenta niños con TDC de entre 5 y 8 años (20 niños y 20 niñas); cinco (5) configuraciones de modelado de realidad 3D con ortogonalidad, simetría y paredes rayadas como parámetros de diseño; y ejercicios de coordinación de recorrido de prueba utilizando una ruta visual predefinida con diferentes condiciones de control motor (luz diurna, oscuridad). Se registraron la tasa de finalización del recorrido, el tiempo de finalización del recorrido y el grado de satisfacción de los participantes como variables de rendimiento del aprendizaje de recorridos y se analizaron estadísticamente. Resultados: Se demostró estadísticamente que la orientación espacial de los niños con TDC era más estable y robusta (en tasas de finalización del camino, tiempo de finalización y nivel de satisfacción del recorrido) en un entorno 3D virtual rico en ortogonalidad, simetría y señales de características como puntos de referencia. En esta configuración de geometría ambiental compuesta, la funcionalidad del entrenamiento y el rendimiento del aprendizaje inmersivo disfrutaron de un 8,16% más de tasa de finalización de ruta, una reducción del 12,37% en el tiempo de finalización de ruta y un 32,10% más de satisfacción de recorrido que las configuraciones de modelado de realidad pobres en geometría y puntos de referencia. La eficacia y la solidez se validaron estadísticamente. Conclusiones: Los niños con dificultades motrices entrenan y aprenden mejor en entornos virtuales 3D ricos en ortogonalidad, simetría y puntos de referencia característicos.

Characteristics and relationship between the development of gross motor skills and executive function in children with attention deficit hyperactivity disorder / 中国康复理论与实践

ObjectiveTo investigate the developmental characteristics of gross motor skills and executive functions, and the correlation between them in school-age children with attention deficit hyperactivity disorder (ADHD). MethodsFrom November, 2020 to May, 2021, 90 children with ADHD were recruited from Peking University Sixth Hospital and Beijing Haidian Wanquan Primary School, and other 90 children with normal development from this primary school were recruited matched their age and gender. Gross motor skills were assessed with the Test of Gross Motor Development in Children, Third Edition (TGMD-3), and inhibitory control, working memory, and cognitive flexibility were assessed with Stroop Color Words Test (SCWT), Rey-Osterrich Complex Figure Test (ROCFT) and Trail Making Test (TMT), respectively. ResultsThe TGMD-3 score was significantly lower in children with ADHD than in normal children (t = -6.275, P < 0.001), while the test results of SCWT, ROCFT and TMT were worse (|t| ≥ 1.986, P ≤ 0.05). The TGMD-3 score of children with ADHD was negatively correlated with the word sense reaction time (r = -0.261), the number of word sense errors (r = -0.404) and the number of color errors (r = -0.326) (P < 0.05), positively correlated with the delayed structural memory scores (r = 0.228) (P < 0.05), and negatively correlated with the TMT-A reaction time (r = -0.255), the number of TMT-A errors (r = -0.329), TMT-B reaction time (r = -0.214) and the number of TMT-B errors (r = -0.474) (P < 0.05). Stratified linear regression analyses showed that the TGMD-3 score of children with ADHD was significant only in predicting test results for inhibitory control and cognitive flexibility (P < 0.05), with explanations of 8.7% and 22.5%, respectively. ConclusionDevelopments of both gross motor skills and executive function delay in children with ADHD, and there is a relation between them, especially the level of gross motor skills relating to the developments of inhibitory control and cognitive flexibility.

Visual Contribution to Motor Skill DCD Disorders & Walking Physiology Using Spatial Cognition and Linear Geometries as Landmark Coordination Cues

Problem: Awareness of children, who experience movement, particularly motor coordination difficulties, has increased dramatically over the last ten years. These motor coordination problems of children with Developmental Coordination Disorder (DCD) or/and Attention-Deficit / Hyperactivity Disorder (ADHD) have been frequently associated with poor visual and spatial eye-vision processing.Background: Motor control difficulties for DCD and ADHD children have been discussed in detail. However, just a little is known about the influence of the natural environment on these disorders. Even more, the built environment’s impact as a spatial cognition and coordination functionality has never been considered.Aim: This pilot and innovative study aim to identify the correlation between and evaluate the visual contribution of the so-called “spatial compound linear geometries” and DCD children’s motor/walking control.Methodology: Twenty children aged 5 to 8 years with DCD difficulties (two intervention groups, one with 10 boys and the other one with 10 girls) were assessed by a statistical structural evaluation in three built environments (two urban parks and one pocket park), under two conditions (rich or not in trees, flora, and PnP linear geometries), and different motor coordination control situations (static balance, dynamic balances, dark condition).Results: The worst performances (regarding movement disorders and motor coordination problems) were observed for both groups with DCD children playing in parks poor in or without trees, flora, and spatial compound linear geometries. Instead, a significant performance (strong statistical correlation) was found for the same intervention group (DCD children’s boys or girls) playing in parks rich in trees, flora, and vegetation (natural environment). The best performance (very strong statistical correlation) was detected in parks rich in a natural environment and linear geometries. Conclusions: While the natural environment contribution is bibliographically known, the best performance finding of the visual contribution of the spatial compound linear geometries, as spatial landmarks enriching the visual-spatial motor/walking functionalities for Children with DCD disorder, could provide new cognitive approaches towards an understanding of children’s Developmental Coordination Disorder and walking physiology. DCD children’s performance, scores, and cues were related to both the natural environment and the spatial compound linear geometries as spatial landmark motor coordination cues and spatio-temporal clues. The significant variability in sensory processing among children with DCD, ADHD, and co-occurring symptoms can contribute to understanding how neurological and social factors correlate across diagnoses. Also, derived observations for stepping errors, Gait analysis (variables), and spatio-temporal clues conclude that visual eye-based processing interrelates with motor coordination problems, performance, inattention, environmental conditions (dark), sex identity (boys, girls), and DCD hyperactivity. Applications: Development of interactive visual applications for (i) human spatial cognition and movement improvement; and (ii) children’s motor control and coordination refinement.

Avaliação motora de crianças através do TGMD-3 / Motor assessment of children through TGMD-3

O presente trabalho trata-se de um estudo realizado com 17 crianças com faixa etária entre 4 e 5 anos, todas matriculadas no Centro de Educação Infantil ­ campus da Universidade Estadual de Londrina (CEI-UEL), tendo como objetivo avaliar o desempenho motor dessas crianças através do TGMD-3, antes e após uma intervenção motora, realizada no CEI-UEL. A intervenção foi composta de 29 sessões de 60 minutos em que eram trabalhadas diferentes habilidades motoras, após a qual foi aplicado novamente o TGMD-3 para avaliar se a intervenção havia influenciado positivamente o desempenho das crianças da amostra. Nossos resultados mostraram que para a variável somatória das habilidades de locomoção e habilidades com bola foi apresentado um aumento na comparação do pré-teste para o pós-teste, porém somente nas habilidades de locomoção foi encontrada significância na melhora. Quanto ao percentil, nas habilidades com bola foi encontrado um desempenho inferior no pós-teste, mas sem que houvesse diferença significativa entre os resultados; já para as habilidades de locomoção foi encontrada uma melhora no pós-teste do percentil, mas sem diferença significativa em comparação ao pré-teste. Com relação ao escore não foi encontrada diferença significativa para as habilidades, porém nas habilidades de locomoção houve desempenho superior no pós-teste e nas habilidades com bola houve desempenho inferior. Como conclusão, podemos inferir que a intervenção motora foi positiva para a melhora do desempenho das crianças, mas não para todas as variáveis analisadas, demonstrando que a intervenção motora pode ser uma ferramenta benéfica para o desempenho motor de crianças.

The present work is a study carried out with 17 children aged between 4 and 5 years old, all enrolled at the Child Education Center - campus of Universidade Estadual de Londrina (CEI-UEL), with objective of evaluating children motor performance through the TGMD-3, before and after a motor intervention, performed at CEI-UEL. The intervention consisted of 29 60-minute sessions with different motor skills, and after the 29 sessions, TGMD-3 was applied again to assess whether the intervention had positively influenced the performance of the children in the sample. Our results showed that for the sum of the walking and ball skills showed an increase in the comparison of the pre-test to the post-test, but only in the walking skills the difference was significant. As for the percentile, in the skills with the ball a lower performance was found in the post-test, but without any significant difference between the results; for the locomotion skills, an improvement was found in the post-test according to the percentile, not showing a significant difference compared to pretest. Regarding the score, no significant difference was found for the skills, but in the locomotion skills there was a superior performance in the post-test and in the skills with ball there was a lower performance. As a conclusion, we can deduce that motor intervention was positive for improving children motor performance, but not for all variables, showing that the motor intervention could be a beneficial tool to children motor performance.

Efeito das restrições no desempenho do saque do voleibol: o papel do nível de experiência / Effect of constraints on volleyball service performance: the role of the experience level

RESUMO O objetivo do estudo é investigar como o desempenho do saque do voleibol de sujeitos com diferentes níveis de experiência é influenciado pela interação de diferentes restrições. Participaram do estudo 36 voluntários do sexo masculino (16,44 ± 0,50 anos) alocados em dois grupos em função do nível de experiência. Os participantes executaram 10 tentativas do saque do voleibol em cada uma das quatro condições experimentais. Foram manipuladas uma restrição relacionada à dificuldade da meta e outra relacionada ao ambiente físico para execução da tarefa. O desempenho do saque por cima do voleibol foi avaliado por meio de uma lista de checagem do padrão de movimento e da precisão ao alvo. Os resultados demonstraram que o grupo experiente manteve o desempenho em todas as condições, enquanto o grupo inexperiente apresentou menor consistência da precisão nas condições com restrição física e pior escore do padrão de movimento na condição de maior dificuldade da meta em interação com a restrição física. O nível de experiência exerceu maior influência no desempenho do que as demais restrições. Uma possível explicação é que ela é uma restrição capaz de maximizar a forma como o sujeito explora as informações disponibilizadas pelas demais restrições.

ABSTRACT The aim of the study is to investigate how the volleyball service performance of subjects with different levels of experience is influenced by the interaction of different constraints. The study included 36 male volunteers (16.44 ± 0.50 years) allocated into two groups according to the level of experience. Participants performed 10 attempts of the serve volleyball in each of the four experimental conditions. One constraint related to the difficulty of the goal and another related to the physical environment for the execution of the task were manipulated. The performance of the overhand volleyball serve was assessed by means of a movement pattern checklist and of the accuracy to target. The experienced group maintained performance in all conditions, while the inexperienced group showed less consistency of accuracy in conditions with physical constraint and worse score of the movement pattern in the condition of greater difficulty of the goal in interaction with physical constraint. The level of experience had a greater influence on performance than the other constraints. One possible explanation is that it is a constraint capable of maximizing the way that the subject explores the information available by the other constraints

The role of nocturnal sleep on the retention, adaptability, and relearning rate of a motor skill

Abstract Aim: The influence of sleep on the adaptability and relearning rate during learning of complex motor skills is still unknown, limiting the comprehension of the sleep role in motor memory consolidation. Thus, we aimed to investigate the nocturnal sleep influence on retention, adaptability, and relearning rate of the dart-throwing task. Methods: Sixty healthy adults were divided into two groups: SLEEP and WAKE. Both groups practiced an under-arm dart-throwing task. However, WAKE practiced in the morning and performed a retention phase in the evening, and SLEEP practiced in the evening and performed a retention phase in the morning of the next day. The practice and retention phases were separated by 12 h in both groups. There were analyses regarding retention (retention test), adaptability (delayed transfer test), and relearning rate (savings). Results: Both groups improved their performance across the acquisition phase and maintained it in the retention test. The groups did not demonstrate adaptability and did not demonstrate a significant difference in relearning rate. Conclusion: We conclude that nocturnal sleep did not modulate the consolidation of motor memories related to ballistic discrete motor skills.

Manipulative skills and games performed by children ranging from 4 to 6 years of age while exploring sensorial cubes

Abstract Aim: To identify and describe the manipulative actions of typical children ages between 4 and 6 years, and the games performed while exploring cubes with different sensorial stimuli. Methods: Cross-sectional, descriptive, and exploratory study. Sixteen typical children aged 4 to 6 years (mean age: 5.78 ± 1.04 years) were filmed, from different angles, during the exploration of six cubes with different sensorial stimuli (transparent, black, tactile, auditory, luminous, and high-contrast). The cubes were delivered in random order and the children explored the cubes for 40 s each. At the end of the explorations, they were asked about what kind of game they could play with that object. The images were observed by the BS Player Profile. Results: Seventeen different types of interactions with the cubes were registered, such as: pushing, shaking, reaching for (bimanual and unimanual), bringing closer to the eyes, knocking, touching with the fingers/hand, throwing upwards, and others. The tactile cube was the favorite among the children (9 children), followed by the luminous cube (6 children). They proposed games with all of the cubes, standing out playing dice (all cubes), building towers, and castles. Conclusion: In the observed group of children, 17 manipulative skills were identified. The games performed during the exploration of the cubes were based on association with other similar objects previously known, related to the visual stimuli provided by the cubes, verbal description of actions that could be performed with that cube, imagination related games using figurative images, and sports-related activities/games.

Cognitive, motor, and visual development in healthy children in the first 42 months of life / Desenvolvimento cognitivo, motor e visual em crianças saudáveis nos primeiros 42 meses de vida

ABSTRACT Purpose: The Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III) is a tool for measuring the developmental status of children, including cognitive and motor functioning, in the first three years of life. This study aims to evaluate the correlation between grating visual acuity and visual functionality in healthy children using the Bayley-III. Methods: Binocular grating visual acuity was measured using Teller Acuity Cards followed by the Bayley-III in healthy children aged 1-42 months. Visual acuity (logMAR) and Bayley-III scores for both cognitive and motor (gross and fine) skills were compared. Results: Forty children (20 boys) aged 1.2-42.1 months were tested. Their mean visual acuity was 0.39 ± 0.27 logMAR, which was within the normal age limits for all children. There was a strong and significant negative correlation between visual acuity and age (r=-0.83, p<0.001). The mean cognitive raw data score was 49.92 ± 18.93 points, with a strong and significant positive correlation between cognitive score and age (r=0.81, p<0.001). The mean gross motor score was 41.72 ± 16.23 points, with a strong and significant positive correlation between gross motor score and age (r=0.75, p<0.001). The mean fine motor score was 39.75 ± 14.63 points, with a strong and significant positive correlation between fine motor score and age (r=0.77, p<0.001). Multiple linear regression demonstrated that older age and better visual acuity were significantly associated with higher Bayley-III scores. Conclusions: This study found a high correlation between grating visual acuity measured using Teller Acuity Cards and cognitive and motor scores measured using the Bayley-III in healthy children, demonstrating that the Bayley-III might be a useful tool for assessing the repercussions of visual impairment on the cognitive and motor development of young children.

RESUMO Objetivo: A Escala Bayley de Desenvolvimento Infantil (Bayley-III) é uma ferramenta que avalia o desenvolvimento de crianças nos 3 primeiros anos de vida, incluindo os domínios cognitivo e motor. Este estudo tem como objetivo correlacionar a acuidade visual de grades e a funcionalidade visual em crianças saudáveis usando a Bayley-III. Métodos: A acuidade visual binocular de grades foi medida usando o teste dos Cartões de Acuidade de Teller seguido pela Bayley-III em crianças saudáveis com idade entre 1-42 meses. Os escores da acuidade visual (logMAR) e da Bayley-III para habilidades cognitivas e motoras (grossa e fina) foram comparados. Resultados: Um grupo de 40 crianças (20 meninos) com idades entre 1,2-42,1 meses foi testado e a média da acuidade visual foi de 0,39 ± 0,27 logMAR, sendo que todas estavam dentro dos limites normais para a idade. Houve uma forte correlação negativa e significante entre acuidade visual e idade (r=-0,83; p<0,001). A média do escore cognitivo foi de 49,92 ± 18,93 pontos, com forte correlação positiva e significante entre o escore cognitivo e a idade (r=0,81; p<0,001). A média do escore motor grosso foi de 41,72 ± 16,23 pontos, com forte correlação positiva e significante entre o escore motor grosso e a idade (r=0,75; p<0,001). A média do escore motor fino foi de 39,75 ± 14,63 pontos, com uma forte correlação positiva e significante entre o escore motor fino e a idade (r=0,77; p<0,001). A regressão linear múltipla mostrou que maior idade e melhor acuidade visual foram significantemente associadas à escores cognitivo e motor mais altos. Conclusões: Neste estudo foi encontrada alta correlação entre a acuidade visual de grades medida pelos cartões de acuidade de Teller e os escores cogninitivo e motor medidos pela Bayley-III em crianças saudáveis. A Bayley-III pode ser uma ferramenta útil para avaliar a repercussão da deficiência visual no desenvolvimento cognitivo e motor de crianças.

Active play interventions on motor skills of preschoolers: a systematic review / Intervenções com brincar ativo nas habilidades motoras de pré-escolares: uma revisão sistemática

Active play can contribute to the reduction of sedentary time and generate potential benefits for the performance of fundamental motor skills in children. Thus, the aim of this systematic review was to provide a synthesis of evidence on the contributions of active play to fundamental motor skills in children aged 2 to 5 years typically developed, as well as to verify the differences between the intervention protocols used in the studies. The studies were identified by searching the PubMed, Web of Science and Lilacs databases. Clinical trials available in English, conducted in typically developing children, were included, and studies with the theme of electronic games were excluded. Two independent researchers examined the studies and conducted data extraction. Eight articles were included in the systematic review; three identified that children who experienced interventions with free active play had better performance in handling and balance skills. Four studies identified that children who practiced guided active play had better performance in locomotion, manipulation and balance skills, one study found no significant difference. We concluded that the practice of active play, especially guided active play, positively contributes to the fundamental motor skills of children aged 3 to 5 years typically developed. (AU)

Brincadeiras ativas podem contribuir para redução do tempo sedentário e gerar potenciais benefícios para o desempenho das habilidades motoras fundamentais em crianças. Assim, o objetivo desta revisão sistemática foi fornecer uma síntese das evidências sobre as contribuições do brincar ativo para a habilidades motoras fundamentais em crianças de 2 a 5 anos tipicamente desenvolvidas, bem como verificar as diferenças entre os protocolos de intervenção utilizados nos estudos. Os estudos foram identificados por meio de busca nas bases de dados PubMed, Web of Science e Lilacs. Foram incluídos os ensaios clínicos disponíveis em inglês, realizados em crianças com desenvolvimento típico, e excluídos os estudos com a temática de jogos eletrônicos. Dois pesquisadores independentes examinaram os estudos e conduziram a extração de dados. Oito artigos foram incluídos na revisão sistemática; três identificaram que as crianças que vivenciaram intervenções com brincadeira ativa livre tiveram melhor desempenho nas habilidades de manuseio e equilíbrio. Quatro estudos identificaram que crianças que praticavam brincadeiras ativas orientadas tinham melhor desempenho nas habilidades de locomoção, manipulação e equilíbrio, um estudo não encontrou diferença significativa. Concluímos que a prática da brincadeira ativa, especialmente a orientada, contribui positivamente para o desempenho das habilidades motoras fundamentais de crianças de 3 a 5 anos tipicamente desenvolvidas. (AU)

Aprendizagem de uma sequência de passos do sapateado e seu efeito sobre a coordenação motora de alunos do ensino fundamental I / Learning a sequence of tap dance steps and its effect on the motor coordination of students in elementar school I

O objetivo desse estudo foi investigar o efeito de aulas de sapateado na aprendizagem de uma sequência de passos e na coordenação motora de crianças. Participaram 27 crianças (14 meninos e 13 meninas), com média de idade de 9,07 (± 0,26) anos, estudantes do terceiro ano do ensino fundamental. As crianças foram avaliadas em relação à estrutura espacial e temporal de uma sequência de passos do sapateado em três momentos (pré-teste, pós-teste e retenção) e em relação a coordenação motora por meio do teste KTK em dois momentos (pré-teste e pós-teste). O desempenho dos passos foi filmado e analisado pela pesquisadora e dois profissionais da área de dança, por meio de fichas de observação com itens referentes à estruturação espacial e temporal das habilidades propostas. Realizou-se uma intervenção de seis aulas de sapateado, 2 vezes por semana, em dias alternados, com duração de 50 minutos cada, que ocorreram durante as aulas regulares de Educação Física escolar. Os resultados demonstraram que, após o período de intervenção, as crianças aprenderam a sequência de passos do sapateado, melhorando significativamente a organização espacial e temporal. Ainda, observou-se que, após as aulas de sapateado, as crianças apresentaram ganhos significativos na coordenação motora. Conclui-se que as aulas de sapateado, inseridas no contexto da educação física escolar, foram benéficas para a aprendizagem motora dos passos, além de contribuir no desenvolvimento da coordenação motora. (AU)

The objective of this study was to investigate the effect of tap dancing classes on the learning of a sequence of steps and on the motor coordination of children. 27 childrens (14 boys and 13 girls) participated, with an average age of 9.07 (± 0.26) years, students of the third year of elementary school. The children were evaluated in relation to the spatial and temporal structure of a sequence of tap dance steps in three moments (pre-test, post-test and retention) and in relation to motor coordination through the KTK test in two moments (pre-test and post-test). The performance of the steps was filmed and analyzed by the researcher and two dance professionals, through observation sheets with items related to the spatial and temporal structuring of the proposed skills. There was an intervention of six tap dance classes, twice a week, on alternate days, lasting 50 minutes each, which occurred during regular school Physical Education classes. The results showed that after the intervention period, the children learned the sequence of tap dance steps, significantly improving spatial and temporal organization. Still, it was observed that, after tap dancing classes, children showed significant gains in motor coordination. It is concluded that tap dancing classes were beneficial for the motor learning of the steps, in addition to contributing to the development of motor coordination. (AU)

Confiabilidade da análise de processo para o desempenho da tarefa de levantar-se do solo em idosos / Intra e inter reliability of supine-to-stand task performance in older adults

A tarefa de levantar-se do solo a partir do decúbito dorsal (STS) tem apresentado recursos avaliativos complementares, em termos de julgamento do desempenho motor, físico e funcional em idosos por meio de medidas quantitativas e qualitativas. Especificamente, em medidas de processo (qualitativas) há sete protocolos que categorizam o desempenho do STS em idosos. Objetivo: Determinar o nível de confiabilidade intra e entre avaliadores da análise de processo do STS em idosos, segundo protocolo adaptado de Manini et al. Métodos: 25 idosos (12 mulheres) realizaram a tarefa de levantar-se do solo a partir do decúbito dorsal sem auxílio. Dois codificadores de vídeo, estudantes de graduação no nível superior de educação - tempo de experiência > 2 anos em Educação Física e ± 6 meses de uso do protocolo classificaram o desempenho dos idosos de acordo com o protocolo. A confiabilidade intra-avaliador e entre avaliadores foi considerada moderada (K = 0,533; p = 0,001; K = 0,466; p = 0,001) e substancial para a medida intra-avaliador 2 (K = 0,736; p = 0,001). O nível de confiabilidade intra e entreavaliadores do STS segundo o protocolo adaptado de Manini foi considerado moderado para sujeitos idosos. (AU)

The Supine-To-Stand task (STS) has presented complementary assessment resources, in terms of motor, physical and functional assessment in the elderly through quantitative and qualitative measures. Specifically, in process measures (qualitative) seven protocols categorize the performance of STS in the elderly. Objective: To determine the level of reliability within and between evaluators of the STS process analysis in the elderly, according to a protocol adapted from Manini et al. Methods: 25 elderly (12 female) performed the task of rising from the ground from the supine position without assistance. Two video encoders, graduate students at the higher education level - time of experience >2 years in Physical Education and ± 6 months in use of the protocol classified the performance of the elderly according to this protocol. Intra-rater and between rater reliability was considered moderate (K = 0.533; p = 0.001; K = 0.466; p = 0.001) and substantial for intra-rater 2 (K = 0.736; p = 0.001). The level of intra- and inter-rater reliability of the STS according to the adapted protocol of Manini was considered moderate for elderly subjects. (AU)

Predictors of low perceptual-motor skills in children at 4-5 years of age / Preditores da baixa habilidade percepto-motora em crianças de 4-5 anos de idade

Abstract Objectives: the purpose of this study was to evaluate the predictors of low perceptual-motor skills in children at preschool age. Methods: this is a cross-sectional study nested in a birth cohort involving mother-child pairs. The children's perceptual-motor skills were assessed individually in their homes when they were 4-5 years old using the Pre-Literacy Skills and Knowledge Test (THCP®), a vali-dated Brazilian instrument. Logistic regression analysis was used to estimate the association between cognitive perceptual-motor skills and potential maternal and child risk factors. Results: of the 199 children included in the study, 53.8% were boys, 90.8% attended school, and 91.1% were enrolled in a public school. Among the children, 114 (57.3%), 41 (20.6%) and 44 (22.1%) had low, moderate and high perceptual-motor skills, respectively. Multivariate logistic regression analysis revealed greater odds of children at preschool age having low perceptual motor skills for boys (OR=2.10; CI95%= 1.14-3.88), children who did not attend school (OR=4.61; CI95%= 1.21-17.49), and those with a household income <5 minimum wages (MW) (OR=4.28; CI95%= 1.49-12.26). Conclusions: our study showed that male gender, not attending school and a monthly household income <5 MW were predictors of low perceptual-motor skills in children at 4-5 years of age.

Resumo Objetivos: avaliar os preditores da baixa habilidade percepto-motora em crianças em idade pré-escolar. Métodos: trata-se de um estudo transversal aninhado a uma coorte de nascimentos envol-vendo pares de mães-crianças. A habilidade percepto-motora das crianças foi avaliada indi-vidualmente em suas residências quando completaram 4-5 anos de idade, utilizando-se o Teste de Habilidades e Conhecimento Pré-Alfabetização (THCP®), um instrumento brasileiro validado. Análise de regressão logística foi utilizada para estimar a associação entre a baixa habilidade percepto-motora das crianças e potenciais fatores de risco materno-infantil. Resultados: das 199 crianças incluídas no estudo, 53,8% eram meninos, 90,8% frequen-tavam a escola, e 91,1% estudavam em escola pública. Entre as crianças, 114 (57,3%), 41 (20,6%) e 44 (22,1%) revelaram baixa, moderada e elevada habilidade percepto-motora, respectivamente. A análise de regressão logística ajustada revelou maior chance de crianças em idade pré-escolar apresentar baixa habilidade percepto-motora quando em meninos (OR=2,10; IC95%=1,14-3,88), crianças que não frequentavam a escola (OR=4,61; IC95%=1,21-17,49), e possuíam renda familiar <5 salários mínimos (SM) (OR=4,28; IC95%=1,49-12,26). Conclusões: nosso estudo revelou que sexo masculino, renda familiar <5 SM, e não frequentar a escola foram preditores significativos da baixa habilidade percepto-motora em crianças de 4-5 anos de idade.

Relação entre integração visomotora e destreza manual em crianças com transtorno do desenvolvimento da coordenação / Relationship between visual-motor integration and manual dexterity in children with developmental coordination disorder

Resumo O objetivo deste estudo foi examinar as habilidades de integração visomotora e destreza manual em crianças com Transtorno do Desenvolvimento da Coordenação (TDC). Estudo descritivo transversal com 22 crianças de 7 a 11 anos com TDC, avaliadas com o Developmental Coordination Disorder Questionnaire (DCDQ-Brasil), Movement Assessment Battery for Children Second Edition (MABC-2) e Beery-Buktenica Developmental Test of Visual-Motor Integration Sixth Edition (VMI). A amostra contou com 4 meninas e 18 meninos. Considerando o percentil 25 no VMI como ponto de corte, 12 crianças apresentaram desempenho abaixo da média no domínio integração visomotora, 13 no domínio visual e 19 no domínio de coordenação motora. Foi observada correlação significativa entre o percentil de destreza motora e o percentil total do MABC-2, mas não entre os escores do MABC-2 e os diferentes domínios avaliados com o VMI. Os resultados sugerem que é necessário e importante o uso combinado de testes para melhor avaliação das crianças com TDC, a fim de detectar suas possíveis dificuldades na integração visomotora e destreza manual e suas implicações no desempenho de tarefas funcionais das crianças no dia a dia.

Abstract This study aimed to examine the visual-motor integration and manual dexterity skills in children with Developmental Coordination Disorder (DCD). A cross-sectional descriptive study of 22 children aged 7 to 11 years old with DCD, assessed with the Brazilian version of the Developmental Coordination Disorder Questionnaire (DCDQ-Brazil), Movement Assessment Battery for Children Second Edition (MABC-2) and Beery-Buktenica Developmental Test of Visual-Motor Integration Sixth Edition (VMI). Four girls and 18 boys participated. Considering the 25th percentile in VMI as the cutoff point, 12 children presented a below-average performance in the visual-motor integration domain, 13 in the visual domain, and 19 in the motor coordination domain. We observed a statistically significant correlation between the motor dexterity and the total MABC-2 percentiles, but not between the MABC-2 percentiles and the different domains evaluated with the VMI. The results suggest that the combined use of tests for better assessment of children with DCD is needed and important to detect their real difficulties in both visuomotor integration and manual dexterity and their implications on the performance of children's daily activities.

Concordância entre testes concorrentes para identificação de crianças com Transtorno do Desenvolvimento da Coordenação / Agreement between competing tests for the identification of children with Developmental Coordination Disorder

Resumo Objetivo Verificar a concordância dos resultados de diferentes instrumentos, Movement Assessment Battery for Children - checklist e teste motor (MABC-2) e Developmental Coordination Disorder Questionnaire (DCDQ-BR), utilizados para indicação de transtorno do desenvolvimento da coordenação (TDC). Método Estudo transversal, realizado no ano de 2017, com dados de crianças entre sete e 10 anos de idade, provenientes de escolas municipais de São José/SC. Elas foram avaliadas quanto ao desempenho motor por meio dos instrumentos MABC-2 (teste motor e checklist) e DCDQ-BR. A análise estatística incluiu o coeficiente Kappa (K) para verificar a concordância entre os resultados dos instrumentos, considerando um nível de significância de 5%. Resultados Participaram do estudo 302 crianças, com média de idade de 8,5±1,09 anos. Ao comparar o MABC-2 teste motor, MABC-2 checklist e o DCDQ-BR, foram observadas concordâncias de regular a fraca (K = 0,303 / 0,116 / 0,039). Conclusão O presente estudo não identificou concordância consistente entre os resultados dos instrumentos MABC-2 e DCDQ-BR para indicação de crianças com TDC, mas a combinação deles é a forma mais completa de avaliação.

Abstract Objective To verify the agreement of the results between different instruments, Movement Assessment Battery for Children - checklist and motor test (MABC-2) and Developmental Coordination Disorder Questionnaire (DCDQ-BR), used to indicate developmental coordination disorder (DCD). Method A cross-sectional study, carried out in 2017, with data from seven to 10-year-old children from municipal schools in São José/SC. They were evaluated for motor performance using the MABC-2 (motor test and checklist) and DCDQ-BR instruments. The statistical analysis included the Kappa coefficient (K) to verify the agreement between the results of the instruments, considering a level of significance of 5%. Results 302 children participated in the study, with a mean age of 8.5 ± 1.09 years old. When comparing the MABC-2 motor test, MABC-2 checklist, and the DCDQ-BR, we observed concordances from regular to weak (K = 0.303 / 0.116 / 0.039). Conclusion The present study did not identify consistent agreement between the results of the MABC-2 and DCDQ-BR instruments for an indication of children with DCD, but their combination is a more complete form of evaluation.

Correlação entre a autopercepção de competência com o desempenho na tarefa de levantar-se do solo de sujeitos idosos saudáveis / Correlation between the self-perception of competence with performance in the task to rise from the floor of healthy elderly subjects / Correlación entre la auto percepción de competencia con rendimiento en la tarea de levantarse del suelo de los sujetos saludables a los ancianos

O objetivo deste estudo foi examinar a correlação entre a au- topercepção de competência (facilidade, dificuldade e esforço subjetivo) com o desempenho na tarefa de levantar-se do solo de idosos saudá- veis. Participaram deste estudo transversal 56 idosos voluntários sau- dáveis. A autopercepção de competência foi avaliada por meio de uma escala likert em categorias (dificuldade/facilidade) e desempenho na tarefa de levantar-se do solo foi medido por meio do número de tentativas realizadas e pelo tempo de execução da tarefa. Verificou-se correlação entre a autopercepção de competência (rho= ,807; p< 0,000) com o número de tentativas na tarefa e com o tempo (rho= -,541; p< 0,000) para levantar-se do solo. Pode-se concluir que, para esta amostra de idosos saudáveis, os aspectos da percepção de competência estão correlacionados com o desempenho para levantar-se do solo.

The objective of this study was to examine the correlation between the perception of competence with the performance on the task to get up from the soil of healthy seniors. 56 volunteers participated in this cross-sectional study. The perception of competence was assessed through a scale in seven categories and performance on the task to get up from the ground was measured through the number of retries performed and through time to run the task. It was found correlation between the perception of competence (rho =, 807; p < 0.000) with the number of attempts the task and with time (rho=-, 541; p < 0.000) to rise from the ground for this sample of healthy seniors. It can be concluded that, for this sample of healthy seniors, aspects of perception of competence are correlated with the performance to rise from the ground

El objetivo de este estudio fue examinar la correlación entre la percepción de competencia con el rendimiento en la tarea de levantarse del suelo de la tercera edad sana. 56 voluntarios participaron en este estudio transversal. La percepción de competencia se evaluó mediante una escala en siete categorías y rendimiento en la tarea de levantarse del suelo se midió a través del número de intentos realizados y a través del tiempo para ejecutar la tarea. Se encontró correlación entre la percepción de competencia (rho=, 807; p < 0.000) con el número de intentos de la tarea y con el tiempo (rho=-, 541; p < 0.000) para elevarse de la tierra para esta muestra de adultos mayores sanas. Se puede concluir que, para esta muestra de adultos mayores sanas, aspectos de la percepción de competencia están correlacionados con el rendimiento que se elevan desde el suelo.

The effect of football basic technical training using unilateral leg on bilateral leg transfer in male children / Efeito do treinamento de habilidades básicas do futebol usando transferência unilateral e bilateral de pernas em meninos

ABSTRACT This experiment investigted transfer of skills from dominant leg limb to non-dominant leg limb and vice versa in dribbling with the ball, juggling and passing/shooting technics of soccer for inexperienced male children. 24 male student age of 10 years from 3th grade who have not involved in a football club as a player. In football basic technical practices, dominant leg (DL) group just used their dominand leg/foot, and non-dominant leg (NDL) group just used their non-dominant leg/foot. Practice phase applied one time a week between February and May on the football field with synthetic grass. The results showed there were not exist no significant difference between the transfers from dominant leg group to non-dominant group or vice versa. On the other hands, performance of all technics improved on dominant and non-dominant groups for the comparison of pre- and post-tests. The findings suggest that the transfer of learning skills could be more effective from non-dominant leg limb to dominant leg limb significantly for technics of juggling, dribbling and kicking.

RESUMO Este experimento investigou a transferência de habilidades do membro dominante da perna para o membro não dominante e vice-versa no drible com a bola, controle de bola e nas técnicas de passe/chute do futebol para meninos iniciantes. Participaram do estudo 24 estudantes de 10 anos de idade da terceira série que não tinham participado de nenhum clube de futebol como jogador. Nas práticas das técnicas básicas do futebol o grupo de perna dominante (PD) apenas usou a perna/pé dominante e o grupo de pernan não dominante (PND) apenas usou a perna não dominante. A fase de prática foi aplicada uma vez por semana entre fevereiro e maio no campo de futebol com grama sintética. Os resultados mostraram que não houve diferença significativa entre as transferências do grupo dominante das pernas para o grupo de pernas não dominantes e vice-versa. Por outro lado, o desempenho de todas as técnicas melhorou no grupo de pernas dominantes e não dominantes na comparação de pré-teste para o pós-teste. As descobertas sugerem que a transferência de habilidades de aprendizado poderia ser mais eficaz do membro não dominante para o membro dominante nas técnicas de controle de bola, drible e chute.

Effects of the aerobic exercise on the learning of a sports motor skill

Abstract Aims: This study aimed to investigate the effects of aerobic exercise on the learning of a sports motor skill. Methods: Forty individuals were allocated to the Practice + Exercise Group (PEG) and for the Practice Group (PG). All participants practiced the underhand serve of the Volleyball; all of them were naïve regarding the motor task. The participants (age/ years: PEG: 21.7 ± 3.06, PG: 20.25 ± 1.95) performed a pre-test with five trials, an acquisition phase with fifteen blocks/ 5 trials each, a post-test with five trials, and a twenty-four hours retention test composted by five trials. The PEG was submitted to an aerobic exercise session immediately after the acquisition phase. It was provided by running around the sports court, for 20 minutes, with an intensity of 85% of the máx heart rate. The PG rest after the acquisition phase. The score and variable errors were the dependent variables. For the motor improvement during the practice, the Anova two way followed by Tukey posthoc test was run, for the retention test was used a T-test, an alpha of 5% was adopted. Results: All groups increased their score through the practice, with no significant difference between them. In the retention test, the PEG demonstrated better motor performance than PG; it may be related to improvements in the consolidation mechanisms induced by aerobic exercise. Conclusion: The aerobic exercise may be a neuromodulatory strategy to enhance the learning of complex motor skills.

Transcendendo o problema: percepções de mães e crianças sobre o impacto do transtorno do desenvolvimento da coordenação no dia a dia / Transcending the problem: perceptions of mothers and children about the impact of developmental coordination disorder in everyday life

Resumo Introdução A maior parte da população é capaz de executar movimentos e atividades cotidianas com relativa competência. É bem documentado na literatura o perfil de algumas crianças que têm muita dificuldade para realizar atividades consideradas típicas da infância. Crianças com transtorno do desenvolvimento da coordenação (TDC) demonstram prejuízo acentuado no desenvolvimento das habilidades motoras, com possíveis repercussões na saúde física e mental. Objetivo Investigar as percepções da díade mãe-criança sobre os prováveis impactos do TDC no desempenho ocupacional das crianças e no dia a dia da família; explorar as relações existentes entre as ocupações, habilidades e ambiente; investigar a influência do transtorno no autoconceito e autoeficácia das crianças. Método Trata-se de um estudo exploratório de corte transversal, de abordagem qualitativa que contou com a participação de 3 mães e 3 crianças. A análise dos dados foi feita por análise de conteúdo. Resultados Duas categorias emergiram: oportunidades de brincar e de fazer e impactos na escola. As mães percebem as dificuldades relacionadas ao desempenho das ocupações das crianças, principalmente nas atividades escolares. Algumas questões do contexto social foram identificadas pelas mães como balizadoras das oportunidades de brincar de suas crianças. As crianças compreendem que têm algumas dificuldades e uma delas identifica problemas na relação com os colegas. Conclusão Acredita-se que o estudo possa contribuir para reforçar a necessidade de reconhecimento do TDC e sua co-ocorrência com dificuldades de aprendizagem como um problema persistente e impactante no cotidiano de crianças e suas famílias, e a importância de fatores ambientais como mediadores da oferta de oportunidades de brincar das crianças.

Abstract Introduction Most of the population can carry out daily activities with competence. The profile of some children who have difficulty doing typical activities of childhood is well documented in the literature. Children with developmental coordination disorder (DCD) demonstrate a marked effort in the development of motor skills, with possible repercussions on mental health. Objective To investigate the perceptions of mothers and their children about the impacts caused by DCD on everyday life; to explore the relations between the occupations, skills, and the environment; to investigate potential influences of the disorder on children's self-concept and self-efficacy. Method This is an exploratory cross-sectional study with a qualitative approach involving three mothers and three children. Data were analyzed using content analysis. Results Three categories emerged: play and doing opportunities and impacts in school activities. Mothers perceived difficulties on occupational performance of their children, especially in school activities. Social context's characteristics are related to the offer of play opportunities for the children. The children understand that they have some difficulties, and one child identifies peer problems. Conclusion This study can highlight the importance of the recognition of DCD and its co-occurrence with learning disability as a persistent problem that affects children's and their families' everyday life, and the role of environmental factors on the opportunities children have to play.

Habilidade motora, sintomas depressivos e função cognitiva em pacientes pós-AVC / Habilidad motora, síntomas depresivos y función cognitiva en pacientes pos-ACV / Motor skills, depressive symptoms and cognitive functions in post-stroke patients

RESUMO Os objetivos deste estudo foram (1) caracterizar pacientes pós-AVC em relação à habilidade motora (HM), sintomas depressivos (SD) e função cognitiva (FC); (2) realizar comparações desses aspectos entre sexo, idade, nível de atividade física; e (3) correlacioná-los com o tempo pós-AVC. Avaliamos 135 sujeitos com idade média de 60 (±15) anos e tempo médio pós-AVC de 17 meses. Foram usados os seguintes instrumentos: questionário sociodemográfico, Protocolo de Habilidade Motora de Fugl-Meyer (HM), Inventário de Depressão de Beck (SD) e Mini Exame do Estado Mental (FC). O teste Mann-Whitney foi utilizado para comparação entre sexo, idade e prática de atividade física. O coeficiente de Spearman para verificar a correlação entre o tempo pós-AVC e as variáveis analisadas (HM, SD e FC). O grupo obteve uma média de 118,19 (±30,45) para HM, 9,93 (±7,14) para SD e de 21,7 (±5,43) para FC. Além disso, nossos resultados mostram que as mulheres apresentam maiores níveis de sintomas depressivos do que os homens, pacientes maiores de 50 anos apresentaram pior escore para FC. Não houve diferenças significativas entre pacientes praticantes e não praticantes de atividade física em relação à habilidade motora, sintomas depressivos e função cognitiva. Não foram encontradas correlações significativas entre o tempo pós-AVC e as variáveis analisadas. Nossos resultados contribuem para o planejamento e ações que busquem a melhora da qualidade de vida dos pacientes.

RESUMEN Los objetivos de este estudio fueran (1) caracterizar a los pacientes después del accidente cerebrovascular en relación con las habilidades motoras (HM), síntomas depresivos (DS) y la función cognitiva (CF), (2) hacer comparaciones de estos aspectos en cuanto al sexo, edad, nivel de actividad física y (3) correlacionar con el tiempo post-AVC. Se evaluaron 135 sujetos con edad media de 60 (± 15) años y tiempo medio post-AVC de 17 meses. Se utilizaron los siguientes instrumentos: cuestionario sociodemográfico, Protocolo de Habilidad Motora de Fugl-Meyer (HM), Inventario de Depresión de Beck (SD) y Mini Examen del Estado Mental (FC). La prueba Mann-Whitney fue utilizada para la comparación entre sexo, edad y práctica de actividad física. El coeficiente de Spearman fue utilizado para verificar la correlación entre el tiempo post-AVC y las variables analizadas (HM, SD y FC). El grupo obtuvo una media de 118,19 (± 30,45) para HM, 9,93 (± 7,14) para SD y de 21,7 (± 5,43) para FC. Además, nuestros resultados muestran que las mujeres presentan mayores niveles de síntomas depresivos que los hombres; los pacientes mayores de 50 años presentaron peor escore para FC. No hubo diferencias significativas entre pacientes practicantes y no practicantes de actividad física en relación con la habilidad motora, síntomas depresivos y función cognitiva. No se encontraron correlaciones significativas entre el tiempo post-AVC y las variables analizadas. Los resultados contribuyen a la planificación y acciones que busquen la mejora de la calidad de vida de los pacientes.

ABSTRACT The aim of this study was (1) to characterize post-stroke patients according to motor skills (MS), depressive symptoms (DS) and cognitive function (CF), (2) compare these aspects according to sex, age, level of physical activity and (3) correlate them to time after stroke. We evaluated 135 subjects with mean age of 60 (± 15) years and 17 months post-stroke time. The following instruments were used: sociodemographic questionnaire, Fugl-Meyer Motor Scale (MA), Beck Depression Inventory (DS) and Mini Mental State Examination (CF). The Mann-Whitney test was used to compare sexes, ages and physical activity practice. The Spearman coefficient was used to verify the correlation between post-stroke time and the variables analyzed (MA, DS and CF). The group obtained an average of 118.19 (± 30.45) to MA, 9.93 (± 7.14) for DS and 21.7 (± 5.43) to CF. The results showed that women presented higher levels of depressive symptoms than men, patients older than 50 years presented lower scores for CF. There were no significant differences between sedentary and non-sedentary patients with regard to motor skills, depressive symptoms and cognitive function. No significant correlations were found between time and the variables analyzed. Our results will contribute to action and planning which seeks to improve the patient's quality of life.

Motor skill disorder of children with autism spectrum disorder / 中国实用儿科杂志

Children with autism spectrum disorder(ASD)may suffer from motor skill dysfunction,and perform as motor delay,coordination disorder,fitness decline,visual-motor integration disorder and so on,which disturb their daily life,school-based activities,and other social activities. Due to the obvious core symptoms of children with ASD,the problem of motor skills may be ignored. Children with ASD should be monitored for the motor development at their early stage and be evaluated with proper assessment tools. Children with ASD should be trained with individualized plan according to their features in order to develop motor skills and improve the core symptoms. As evidence of motor intervention for children with ASD is increasing,we should pay more attention to the motor skill dysfunction problem in children with ASD and make them benefit from the motor intervention and sport program.