Herbert Ugrinowitsch

Federal University of Minas Gerais | UFMG · Departamento de Esportes

Motor competence is associated with the perceived difficulty of a task. This study hypothesized that children with higher motor competence perceive certain tasks as less challenging than their peers with lower motor competence. As a result, children with higher motor competence were expected to set more ambitious goals for themselves while learning...

In recent decades, research has focused on motor adjustments in interception tasks within predictable environments. However, emerging studies suggest that continued practice beyond performance stabilization enhances the ability to adapt to unpredictable events. The objective of this study was to investigate the effects of practicing until performan...

The current investigation scrutinized the strategic approaches employed by the top four teams in the Brazilian Men's Volleyball Superliga, according to the match's opponent. The study encompasses the analysis of 22 matches, involving teams ranked first through fourth, competing against each of the 12 teams participating in the 21-22 season of the B...

Objectives: This study tested the effects of combining two bandwidth knowledge of performance (KP) on a complex sports motor skill. Method: Twenty-two elementary students were divided into combined wide and narrow band-width KP (WNG) and control group (CG). The task was the volleyball serve, whose goal was to hit the bull's eye center of a target l...

The current investigation scrutinized the strategic approaches employed by the top four teams in the Brazilian Men's Volleyball Superliga, according to the match's opponent. The study encompasses the analysis of 22 matches, involving teams ranked first through fourth, competing against each of the 12 teams participating in the 21-22 season of the B...

This study aimed to examine the content, face, and sensitive validity, and test-retest reliability of a volleyball overhand serve accuracy-test. Four experts – university professors evaluated the content validity; 50 volleyball coaches, teachers, and athletes were enrolled in the face validity. Thirty-three undergraduate students (18 experienced an...

This study aimed to examine the content, face, and sensitive validity, and test-retest reliability of a volleyball overhand serve accuracy-test. Four experts-university professors evaluated the content validity; 50 volleyball coaches, teachers, and athletes were enrolled in the face validity. Thirty-three undergraduate students (18 experienced and...

This study aimed to identify determinant factors of attack efficacy considering the effects of reception, attack tempo, attack performance, setting type and attack type. Firstly, 19,454 offensive actions of complex I of the Brazilian Volleyball Men’s Super League were considered and analyzed separately from the middle, wing, and opposite attacker s...

Com o processo de envelhecimento, surgem alterações fisiológicas, morfológicas e funcionais que impactam negativamente na capacidade funcional dos idosos. Essas mudanças podem comprometer a autonomia e independência, tornando-se ainda mais críticas quando associadas ao diagnóstico de doenças graves. Este estudo teve como propósito compreender os ef...

Knowledge of results (KR), particularly its informational role, has often been regarded as redundant for learning interception-like tasks, such as coincidence-anticipation timing tasks. However, it is possible that the KR's guiding effect might be detrimental to motor adaptation, instead of only redundant, leading to a dependency on KR and steering...

Studies on spacing of practice investigate the effects of the execution/rest ratio on the acquisition of motor skills. For research purposes, this spacing of practice is dichotomized as massed or distributed practice. It can be manipulated as the inter-trial interval, corresponding to the period of time between the end of one attempt and the beginn...

The purpose of this study was to evaluate the effect of the goal difficulty level on the volleyball serve learning and if the perceived sports competence mediates this process. Adolescent volunteers (N = 22, age = 14.0 ± 0.9 years) participated in this study performing the volleyball serve. Two experimental groups were formed: high difficult goal g...

In this study, we aimed to investigate the influence of executive functions (EF) on motor adaptation. We compared the motor performance of adults with and without EF deficits. Those with EF deficits (n = 21) were individuals with attention deficit hyperactivity disorder (ADHD) under medical treatment, and those without EF deficits (n = 21) comprise...

This study investigated how information emerging from interpersonal coordination affects the decision-making on tipping in different phases of the volleyball game. Eighty-six sequences of play involving tips performed by players of both sexes were selected from 20 games of a professional championship of volleyball (attack phase, n = 56; counteratta...

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...

O Envelhecimento é uma condição humana compreendida como um processo sequencial, individual, acumulativo, irreversível, universal, não patogênico e de modificação do organismo. Neste processo podem existir agravos que induzem a danos moleculares e celulares progressivos, de maneira que com o tempo o organismo se torna menos capaz de fazer frente ao...

Extensive practice is observed when performance reaches a plateau despite practice continuation. Although extensive practice promotes better results in retention tests, its status regarding transfer tests is not clear. The Adaptive Process Approach states that transfer will benefit from extensive practice. In turn, the Specificity of Practice Hypot...

BACKGROUND: A theoretical background of hierarchical open systems has emerged as an alternative for explaining consistency and adaptability as complementary in the same motor skill related-structure at different levels of analysis. AIM: Based on original supporting evidence, this paper presents and discusses how an adoption of such background allow...

This study aimed to investigate the combined practice schedule on learning both the movement pattern and precision of a complex sports motor skill. Based on pretest performance, sixteen participants (14.19 ± 1.80 years-old) were counterbalanced into two groups, random practice and combined practice. During the acquisition phase, the participants pe...

The neuron motor system has the ability to update the control strategy according to the environment. Intercepting a moving object is a task that can provide and study this ability. The aim of this study is to determine the performance and the control strategy on visual occlusion perturbation to intercepting moving targets. Sixteen subjects (24.4 ±...

Interacting with the environment requires a remarkable ability to control, learn, and adapt motor skills to ever-changing conditions. The intriguing complexity involved in the process of controlling, learning, and adapting motor skills has led to the development of many theoretical approaches to explain and investigate motor behavior. This paper wi...

We investigated whether motor competence in fundamental motor skills influences sports motor skill learning. Motor competence in fundamental motor skills related to the overhead volleyball serve (i.e., throwing and volleying) was evaluated in 38 children (aged 9–10 yrs) and participants were divided into lower and higher motor competence groups. Th...

RESUMO A área de Comportamento Motor (CoM) investiga os processos neuropsicológicos da organização da resposta motora em termos de aprendizagem, controle e desenvolvimento motor, de onde emergiram. Este estudo teve como objetivo descrever a produção intelectual da área de Comportamento Motor (CoM), e as especificidades das suas subáreas de investig...

Sendo o ser humano um ser biopsicossocial, faz-se necessário a obtenção de conhecimento na área da qualidade de vida, com o intuído de compreender os efeitos da atividade física, nesse caso, o Pilates, sobre a qualidade de vida dos indivíduos. O estudo teve como objetivo verificar e comparar a percepção de qualidade de vida dos praticantes de Pilat...

Burnout is a psychological syndrome of reaction to chronic stress that occurs in athletes who feel exhausted by a sport activity that was previously pleasurable and enjoyable. One technique to prevent and control the syndrome is through coping, which is the ability to deal with stressful situations. In contrast to traditional cross-sectional approa...

The investigation of the perception of affordances in sport has evolved by considering an ecological analysis of the game, thus seeking to understand how athletes collect information from the environment to increase the chances of making appropriate decisions concerning the constraints of the game. Perception of affordances involves an interaction...

This study aims to identify the motivational aspects that lead individuals to practice the Pilates Method. The IMPRAFE-54 questionnaire was applied to 52 adult and elderly individuals. Variables such as sex, age group and time of practice were considered. For group comparisons, the T test and the Mann-Whitney test were performed. The results showed...

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

O presente estudo objetiva identificar os aspectos motivacionais que levam os indivíduos a praticar o Método Pilates. Foi aplicado o questionário IMPRAFE-54 em 52 participantes com o intuito de entender a motivação dos indivíduos para a prática. Variáveis como sexo, faixa etária e tempo de prática foram consideradas. Os resultados mostraram que, de...

The objective of this study was to evaluate the effect of the goal difficulty level in the learning of the volleyball serve, in both precision and the movement pattern. Ten adolescents (13 to 15 years old) inexperienced participated in this study. The dependents variables were accuracy to target and movement pattern of serve. The experiment was com...

Contextualização: Os efeitos da Faixa de Amplitude de Conhecimento de Resultados (CR) na aprendizagem de habilidades motoras comumente têm sido explicados pelas hipóteses explanativas da consistência e da orientação. Estas hipóteses foram testadas com medidas comportamentais, mas não foram encontrados estudos que as testaram com medidas mais objeti...

Contextualização: Os estudos de organização da prática mostram que ela pode ser organizada de forma constante, variada ou combinada. A combinação de prática constante-variada tem sido investigada com a manipulação de um aspecto variante da habilidade (tempo absoluto), e seus efeitos tem sido analisados através do erro relativo (aspecto invariante)...

Contextualização: Os efeitos da Faixa de Amplitude de Conhecimento de Resultados (CR) na aprendizagem de habilidades motoras comumente têm sido explicados pelas hipóteses explanativas da consistência e da orientação. Estas hipóteses foram testadas com medidas comportamentais, mas não foram encontrados estudos que as testaram com medidas mais objeti...

Performing a motor task depends on the level of performance stabilization and movement control, and both aspects of motor behavior are related to motor learning (retention and transfer) and adaptation (predictable and unpredictable perturbations). Yet few studies have further investigated the underlying dynamics that may elicit these benefits. In t...

To test Bernstein's degrees of freedom (DF) hypothesis, the authors analyzed the effect of practice on the DF control and interjoint coordination of a Taekwondo kick. Thirteen inexperienced and 11 expert Taekwondo practitioners were evaluated. Contrary to Bernstein's hypothesis, the inexperienced group froze the DF at the end of learning, reducing...

Este estudo objetivou identificar e analisar as chances de ocorrerem os efeitos dos ataques feitos pelos atacantes de ponta, a partir das posições 4 e 6, no side-out, segundo o efeito da recepção, tempo de ataque e o tipo de ataque. Foram analisados 142 jogos da Superliga Masculina 2014-2015, total de 6.185 ações de ataque. Os pontos de ataque fora...

According to Bernstein, the central nervous system solution to the human body’s enormous variation in movement choice and control when directing movement—the problem of degrees of freedom (DF)—is to freeze the number of possibilities at the beginning of motor learning. However, different strategies of freezing DF are observed in literature, and the...

Aim: Attentional focus and demonstration have traditionally been investigated through outcome measures. Few studies have used other levels of analyses, such as the neuromuscular to explain the benefits of these two factors. The purpose of the present study was to examine whether there would be performance differences between external and internal f...

This study aimed to investigate burnout and coping throughout a year of competition as well as to analyse the relationship between dimensions of burnout and coping strategies. Brazilian high-level judo athletes (N = 20) completed questionnaires of burnout and coping. Data collection occurred four times throughout a sport season. Although the result...

The aim of the study was to verify the effects of dart weight and target distance on kinematic variables of the movement control of the underarm dart throwing task. Four women and one man performed the task of throwing a dart at two horizontal circular targets located at 2m (Nt) and 3m (Ft) away, with two different weights, 22g (Ld) and 44g (Hd). O...

Para aprendizagem de habilidade motora esportiva é necessário a oportunidade de prática aliada a algum tipo de feedback extrínseco. Uma das formas de manipular o feedback extrínseco é com a faixa de amplitude (FA), que é o fornecimento de feedback somente se o erro extrapolar a faixa de tolerância pré-estabelecida. Estudos mostraram benefícios na a...

Differences between hands in motor performance are associated with differences in the interaction of inhibitory connections of homologous parts of the cerebral hemispheres. Modulation of these inhibitory connections in the right and left primary motor cortex (M1) may alter manual performance asymmetries. To investigate this assumption, eleven right...

The aim was to identify the predictive factors of the attack efficacy of the Brazilian women’s League Champion team according to the level of performance of the opposing team.The sample was composed of the observation of 1137 attacks in 21 games of the 2015-2016 Brazilian women’s Volleyball League champion team. The results were significant to iden...

Este estudo tem como objetivo investigar a associação entre o polimorfismo da COMT e a aquisição de uma tarefa de sequência motora. As hipóteses são de que (a) o alelo Met favorecerá a produção do padrão de movimento e o alelo Val favorecerá a parametrização do movimento; (b) os homozigotos Met buscarão predominantemente informações visuais relacio...

The present study has the purpose of develop a paradigm that enable verify if the pupil dynamics can be useful for neurofeedback application. P. 39-42 Livro de publicações do 7º Congresso Brasileiro de NeuroVisão: Neurociências da Visão https://www.researchgate.net/publication/335787521_Livro_de_publicacoes_do_7_Congresso_Brasileiro_de_Neurocienci...

Feedback can have a detrimental effect on motor learning if it is provided too frequently. Based on this,a previous study adopted an assumption that augmented feedback related only about critical elements of skills will avoid its adverse effects and could improve motor learning. The present study aimed to test this assumption. The task consisted of...

Differences in motor learning can be partially explained by differences in genotype. The catechol-O-methyltransferase (COMT) Val158Met polymorphism regulates the dopamine (DA) availability in the prefrontal cortex modulating motor performance and learning. Given the differences in tonic and phasic DA transmission, this study aimed to investigate wh...

A aprendizagem de habilidade motora requer prática aliada ao conhecimento de resultados (CR). Uma das formas de manipular o CR é com a faixa de amplitude (FA), que é estipular uma margem de tolerância ao erro e o fornecimento de CR acontece somente se o erro extrapolar a margem pré-estabelecida. A principal característica da FA é que a decisão de f...

A aprendizagem de habilidade motora requer prática aliada ao conhecimento de resultados (CR). Uma das formas de manipular o CR é com a faixa de amplitude (FA), que é estipular uma margem de tolerância ao erro e o fornecimento de CR acontece somente se o erro extrapolar a margem pré-estabelecida. A principal característica da FA é que a decisão de f...

A competência motora e o estabelecimento de metas são fatores que influenciam a aprendizagem motora, sendo que a maior competência e maior dificuldade da meta podem resultar em melhor aprendizagem do que menor competência e menor dificuldade da meta, pois aumentam o comprometimento, o direcionamento da atenção e a busca de estratégias por parte dos...

A combinação de estruturas de prática tem sido benéfica para a aprendizagem da estrutura e dos parâmetros i.e., aspectos invariáveis e aspectos variáveis da habilidade, respectivamente. Estudos investigaram os efeitos da combinação da prática constante, seguida da prática variada com variação de parâmetros da habilidade na aquisição de habilidades...

The type of practice can influence what is learned from a motor skill. The aim of this study was to investigate the effects of the constant and random practice on the learning of Generalized Motor Program and parameters of the volleyball serve. The sample was composed of 20 children between 10 and 12 years old. The participants performed a pre-test...

The benefits of less repetitive practice in motor learning have been explained by the increased demand for memory processes during the execution of motor skills. Recently, a new perspective associating increased demand for perception with less repetitive practice has also been proposed. Augmented information gathering and visual scanning characteri...

Many studies have attributed self-controlled feedback benefits associated with motor learning to learners’ greater information processing during practice. However, individual learner characteristics like their impulsivity can also influence how people engage cognitively during learning. We investigated possible dissociations between the types of in...

The present study aims to analyze the predictive factors of the effects of attacks carried out from the attack zone. The sample consisted of the observation of 8,059 attack actions of the Brazilian men's Super League in 2014-2015. The variables analyzed were reception effect, attack tempo, and attack effect. The results showed that excellent recept...

This experiment investigated the effect of number of visual demonstrations on the acquisition of discreet motor skill. Seventy-four college students of both sex participated in this study. The participants observed a visual model twice or ten times. In the acquisition phase, the participants were asked to throw a dart with postero-anterior movement...

The aim of this study was to investigate the short and long-term effects of the bandwidth KR in learning of the absolute and relative dimensions of a motor skill. Twenty-two undergraduate students divided into two groups: G15 who received KR when the relative error exceeded 15%; and G0, with KR after every trial. The study consisted of an acquisiti...

The type of practice can influence what is learned from a motor skill. The aim of this study was to investigate the effects of the constant and random practice on the learning of Generalized Motor Program and parameters of the volleyball serve. The sample was composed of 20 children between 10 and 12 years old. The participants performed a pre-test...

O objetivo do presente estudo foi investigar o efeito do nível desenvolvimento em habilidades motoras fundamentais no desempenho de uma habilidade especializada. Participaram 46 crianças de 9 e 10 anos de idade de ambos os sexos. Os grupos foram formados com base no nível de desenvolvimento de duas habilidades motoras fundamentais (arremesso por ci...

ARTIGO ORIGINAL | ORIGINAL ARTICLE RESUMO O propósito deste estudo foi investigar como a forma de distribuição do conhecimento de resultados (CR) em uma frequência relativa moderada (50%) afeta a aprendizagem motora. Trinta universitários com idade entre 18 a 30 anos (M = 22.75, DP = 2.69) foram organizados em três grupos experimentais com diferent...

The aim of the present study was to investigate the effect of development level in fundamental motor skills on performance of a specialized skill. A total of 46 children, 9 and 10 years old, of both genders participated in the study. The groups were arranged according the level of development of two fundamental motor skills (throwing overhand and v...

The aim of this study was to investigate how the distribution of knowledge of results (KR) in a relative moderate frequency (50%) affects motor learning. Thirty undergraduates aged 18 to 30 years (M = 22.75, SD = 2.69) were assigned to one of three experimental groups with different KR conditions: accumulated in beginning group (BG), uniform distri...

Aims: This study aimed to investigate how different age groups of older adults perform and control movements in a goal-directed aiming task and the importance of visual feedback during these movements. Methods: Participants included 22 old adults, divided in two age groups: younger (60-70 yr) and older (80-90 yr). Subjects performed the task in a...

Este estudo objetivou identificar e analisar as chances de ocorrerem os efeitos dos ataques feitos pelos atacantes de ponta, a partir das posições 4 e 6, no side-out, segundo o efeito da recepção,tempo de ataque e o tipo de ataque. Foram analisados 142 jogos da Superliga Masculina 2014-2015, total de 6.185 ações de ataque. Os pontos de ataque foram...

Este estudo teve como objetivo investigar o efeito da interação das restrições na emergência de padrões coordenativos do saque do Voleibol. Participaram da amostra 36 adolescentes com idades entre 16 e 17 anos, do sexo masculino, divididos por nível de experiência em dois grupos. Um grupo possuía (n=18) sujeitos que participavam de treinamentos e c...

This study compared decision-making (DM) of experienced and novice volleyball coaches while measuring blood flow brain activation with functional near-infrared spectroscopy. We sampled 34 coaches (mean (M) age of 32.5, standard deviation [SD] = 9.4 years) divided into two experience groups: (a) novice (M = 2.8, SD = 1.9 years) and (b) experienced (...

In aiming movements the limb position drifts away from the defined target after some trials without visual feedback, a phenomenon defined as proprioceptive drift (PD). There are no studies investigating the association between the posterior parietal cortex (PPC) and PD in aiming movements. Therefore, cathodal and sham transcranial direct current st...

This study aimed to identify the predictive factors of attacks, performed from positions 1 and 6 according to the effect of reception in high level Brazilian male volleyball and to find the predictive factors that differentiate the game practiced from these positions. The sample consisted in the observation of 142 games of the Brazilian Men's Super...

The present study aimed to characterize and differentiate between the predictive factors of the attacks performed by the opposite player from positions 1 and 2. The sample consisted of the observation records of 142 volleyball games of the Brazilian Men's Super-League season 2014/2015, totaling 8,010 actions of reception, setting and attack, with 5...