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1.
Motriz (Online) ; 28: e10220002822, 2022. tab, graf
Article in English | LILACS | ID: biblio-1386385

ABSTRACT

Abstract Aim: The present study aimed to investigate the prevalence of RAE in soccer players from different positions in Series A and B in 2020 Brazilian soccer, as well as the impact of RAE on the estimated market value of these players. Methods: Data from 1080 male elite soccer athletes were analyzed. Athletes were grouped according to birth quarters: Q1 (January-March), Q2 (April-June), Q3 (July-September), and Q4 (October-December) and the competitive level (Series A or B). Chi-square tests (χ2) were performed to compare the birthdates' distribution of athletes according to a competitive level and playing positions. Kruskal-Wallis test was used to compare the market values of players born in each of the quarters of the year across competitive levels and playing positions. The significance level was set at 5%. Results: The overall analyses showed the prevalence of RAE in Series A and B, with an overrepresentation of athletes born in the first two quarters of the year. The RAE analysis based on playing positions showed different from expected distributions for forwards, midfielders, and defenders in Series A. In Series B, only midfielders showed a difference from the expected distribution. As for the market values analyses, no differences were found based on the athletes' birth quarters, regardless of competitive level or playing position. Conclusion: Our results indicate that, although RAE is prevalent in Series A and B of elite Brazilian soccer, it does not seem to influence players' estimated market values.


Subject(s)
Humans , Male , Aptitude , Soccer/economics , Age Factors , Athletes , Data Analysis
2.
Motriz (Online) ; 27: e10200146, 2021. tab, graf
Article in English | LILACS | ID: biblio-1154897

ABSTRACT

Abstract Aims: This study aimed to verify whether vigorous exercise is capable of generating mental fatigue. Methods: To do so, 16 young adult male (29.4 ± 5.2 years old) cyclists (5.4 ± 4.6 years of training) underwent three visits: 1) control session (rest); 2) session with cognitive demand (20 minutes of AX-CPT); 3) session with vigorous exercise (10km time trial). Mental fatigue was assessed using the visual analog scale of fatigue in the pre-and post-session moments. A two-way ANOVA of repeated measures followed by the Bonferroni posthoc was used to verify the effect of the condition (control, cognitive demand, and exercise) and time (pre and post) interaction. The paired "t" test was used to compare the delta of mental fatigue (post - pre) of the sessions. The partial eta squared was used to determine the effect size of the variance. The significance adopted was p < 0.05. Results: A condition x time interaction was observed (F (2.30) = 5.349, p = 0.010, partial η2 = 0.263). When comparing the deltas, a mean difference was found between the control and vigorous exercise (p = 0.033) conditions and cognitive demand and vigorous exercise (p = 0.017) conditions. Control and cognitive demand sessions showed no difference (p = 0.801). Conclusion: The findings suggest that intense physical exercise seems to cause mental fatigue after practice.


Subject(s)
Humans , Male , Adult , Exercise/physiology , Mental Fatigue/etiology , Analysis of Variance , Visual Analog Scale , Cyclist
3.
Motriz (Online) ; 27: e10210004621, 2021. tab, graf
Article in English | LILACS | ID: biblio-1287370

ABSTRACT

Abstract Aim: This study investigated the Relative Age Effect (RAE) in Brazilian track and field athletes based on sex, age category (U-16, U-18, U-20, U-23 and senior), and event type (sprints/hurdles, middle distance, long-distance, jumps, throws). Methods: Data from 2.259 male and 1.776 female elite track and field athletes, ranked top-50 in events held by the Brazilian Track and Field Confederation in 2019 were analyzed. To determine RAE athletes were divided into four quarters based on their months of birth, considering January 1st the cut-off date. The influence of sex, age category, and event types in the pervasion of RAE in Brazilian track and field athletes was assessed through Chi-squared tests. Results: Athletes born closer to the cut-off date were more frequent than athletes born further from this date were in male youth categories. This effect reduced as categories increased, even reversing in the senior category. Finally, RAE was more frequent in events in which athletic performance relies more on strength, speed, and power, which is the case of sprints/hurdles, jumps, and throws. Conclusion: RAE is particularly prevalent in young male Brazilian track and field athletes, which indicates that many potentially talented athletes are overlooked in youth tryouts because they were born months away from the cut-off date. Policies that reduce the disadvantages faced by relatively younger athletes are warranted in order to avoid the loss of potential sports talents.


Subject(s)
Humans , Track and Field , Athletes , Aptitude , Chi-Square Distribution , Age Factors
4.
Rev. bras. med. esporte ; 26(2): 113-116, Mar.-Apr. 2020. tab
Article in English | LILACS-Express | LILACS | ID: biblio-1092634

ABSTRACT

ABSTRACT Introduction: The osteogenic effects generated by different sports are the subject of a growing number of research projects. Regular physical activity is one of the main recommendations for the stimulation of bone mineral density (BMD). However, evidence has shown that not all physical activities promote similar effects. In this context, the osteogenic effects of swimming need to be clarified. Objective: To verify and compare total and regional BMD levels between male and female swimming athletes and university non-athletes. Methods: The sample, composed of 60 participants of both sexes, was divided into two groups: 30 swimming athletes (GA): 15 men (22.2 ± 3.92 years; 73.61 ± 16.55 kg; 1.76 ± 0.08 m) and 15 women (21.91 ± 2.21 years; 53.15 ± 8.36 kg; 1.64 ± 0.06 m) and a control group (CG): 30 university non-athletes: 15 men (20.73 ± 1.27 years; 74.4 ± 5.54 kg, 1.74 ± 0.04 m) and 15 women (19.93 ± 2.05 years; 59.72 ± 1.33 kg; 1.63 ± 0.004 m). BMD (total, arms, legs, pelvis and spine) was measured using dual energy X-ray absorptiometry (DXA). The results were compared with one-way ANOVA using Scheffé's post hoc test, when necessary. Results: When compared with the women, the men of both groups presented superior results for all BMD values analyzed. In addition, GA had higher BMD of arms and spine when compared to the CG, both for males (p = 0.016 and p = 0.001, respectively) and females (p = 0.0001 and p = 0.011, respectively). Conclusions: The results of this study demonstrate that young male adults, athletes and non-athletes, present higher levels of BMD than their peers of the opposite sex. In addition, the results suggest that when undertaken for competitive purposes and with a weekly training volume of 12 hours or more, swimming may be beneficial for the bone development of young athletes when compared to non-athlete controls. Level of evidence III; Retrospective comparative study.


RESUMO Introdução: Os efeitos osteogênicos gerados pelas diferentes modalidades esportivas são alvo de um crescente número de investigações. A prática regular de atividades físicas é uma das principais recomendações para a estimulação da densidade mineral óssea (DMO). Entretanto, as evidências têm demonstrado que nem todas as atividades físicas promovem efeitos semelhantes. Nesse contexto, os efeitos osteogênicos da natação precisam ser esclarecidos. Objetivo: Verificar e comparar os níveis de DMO, total e regional, entre atletas de natação de ambos os sexos e universitários não atletas. Métodos: A amostra, composta por 60 participantes de ambos os sexos, foi dividida em dois grupos: 30 atletas de natação (GA): 15 homens (22,2±3,92 anos; 73,61±16,55 Kg; 1,76±0,08 m) e 15 mulheres (21,91±2,21 anos; 53,15±8,36 Kg; 1,64±0,06 m) e um grupo controle (GC): 30 universitários não atletas: 15 homens (20,73±1,27anos; 74,4±5,54 Kg; 1,74±0,04 m) e 15 mulheres (19,93±2,05 anos; 59,72±1,33 Kg; 1,63±0,004 m). As DMO (total, dos braços, pernas, pelve e coluna) foram medidas com utilização da absorciometria radiológica de dupla energia (DXA). Os resultados foram comparados com auxílio da ANOVA One-Way utilizando, quando necessário, o teste post hoc de Scheffé. Resultados: Quando comparados com as mulheres, os homens dos dois grupos apresentaram resultados superiores para todas as DMO analisadas. Além disso, o GA apresentou maiores DMO de braços e de coluna quando comparado ao GC, tanto para homens (p=0,016 e p=0,001, respectivamente) quanto para mulheres (p=0,0001 e p=0,011, respectivamente). Conclusão: Os resultados do presente estudo demonstram que os jovens adultos do sexo masculino, atletas e não atletas, apresentam maiores níveis de DMO que seus pares do sexo oposto. Além disso, os resultados sugerem que, quando praticado com objetivo competitivo e com volume de treinamento semanal igual ou superior a 12 horas, a natação pode ser benéfica para o desenvolvimento ósseo de jovens atletas, quando comparado com o grupo controle não atletas. Nível de evidência III; Estudo retrospectivo comparativo.


RESUMEN Introducción: Los efectos osteogénicos generados por las diferentes modalidades deportivas son objeto de un creciente número de investigaciones. La práctica regular de actividades físicas es una de las principales recomendaciones para la estimulación de la densidad mineral ósea (DMO). Entretanto, las evidencias han demostrado que no todas las actividades físicas promueven efectos semejantes. En ese contexto, los efectos osteogénicos de la natación precisan ser esclarecidos. Objetivo: Verificar y comparar los niveles de DMO, total y regional, entre atletas de natación de ambos sexos y universitarios no atletas. Métodos: La muestra, compuesta por 60 participantes de ambos sexos, fue dividida en dos grupos: 30 atletas de natación (GA): 15 hombres (22,2±3,92 años; 73,61±16,55 Kg; 1,76±0,08 m) y 15 mujeres (21,91±2,21 años; 53,15±8,36 Kg; 1,64±0,06 m) y un grupo control (GC): 30 universitarios no atletas: 15 hombres (20,73±1,27 años; 74,4±5,54 Kg; 1,74±0,04 m) y 15 mujeres (19,93±2,05 años; 59,72±1,33 Kg; 1,63±0,004 m). Las DMO (total, de los brazos, piernas, pelvis y columna) fueron medidas con el uso de la absorciometría radiológica de doble energía (DXA). Los resultados fueron comparados con auxilio de ANOVA One-Way utilizando, cuando fuera necesario, el test post hoc de Scheffé. Resultados: Cuando comparados con las mujeres, los hombres de los dos grupos presentaron resultados superiores para todas las DMO analizadas. Además, el GA presentó mayores DMO de brazos y de columna cuando comparado al GC, tanto para hombres (p=0,016 e p=0,001, respectivamente) como para mujeres (p=0,0001 y p=0,011, respectivamente). Conclusión: Los resultados del presente estudio demuestran que los jóvenes adultos del sexo masculino, atletas y no atletas, presentan mayores niveles de DMO que sus pares del sexo opuesto. Además, los resultados sugieren que, cuando practicado con objetivo competitivo y con volumen de entrenamiento semanal igual o superior a 12 horas, la natación puede ser benéfica para el desarrollo óseo de jóvenes atletas, cuando comparado con el grupo control no atletas. Nivel de evidencia III; Estudio retrospectivo comparativo.

5.
Motriz (Online) ; 26(4): e10200045, 2020. tab, graf
Article in English | LILACS | ID: biblio-1143321

ABSTRACT

Abstract Aims: This study investigated the existence of Relative Age Effect (RAE) in the selection process of male and female athletes in the Brazilian national handball teams according to age categories (U-18, U-21, and senior) and playing position (wings, backs, pivots, and goalkeepers). Methods: In order to determine RAE, athletes were divided based on their months of birth; quarters Q1 (January-March), Q2 (April-June), Q3 (July-September), and Q4 (October-December). Data were collected from the official Brazilian Handball Confederation (CBHb) website and included the athletes that participated in training and/or competitions composing the Brazilian national teams from 2014 to 2018. To determine the RAE on playing positions, age categories of male and female groups were pooled. Chi-squared tests were performed to investigate the RAE. Results: An over-representation of players born in Q1 and Q2 in the U-18, U-20, and senior categories of male teams and the U-20, and senior female teams were found. In the male teams, as the age category increased, RAE decreased, but still existed. Such distribution was reversed in the female athletes, with a higher RAE magnitude in the senior category as compared to U-18 and U-21. Additionally, it seems that RAE is dependent on the playing position only for male athletes (wings and backs) whereas RAE was found for all playing positions in female athletes. Conclusion: Overall, RAE was found in Brazilian national handball teams, but its magnitude and form of manifestation seem to be influenced by sex, category, and playing position.


Subject(s)
Humans , Aptitude/physiology , Sports/physiology , Physical Functional Performance , Brazil , Chi-Square Distribution , Age Factors , Gender Identity
6.
J. Phys. Educ. (Maringá) ; 31: e3158, 2020. tab, graf
Article in English | LILACS | ID: biblio-1134705

ABSTRACT

ABSTRACT The study aimed to analyze the association between the position of the attacker, the place of the finish and the direction of the finalization with the effectiveness of the finalization, as well as the predictive factors of this. A total of 6146 attack actions of 66 matches were analyzed by the 24 teams participating in the 2015 Women's World Handball Championship. For the association between the variables studied, we used the Chi-Square test and for predictive analysis of the data, we used the multinomial regression. The significance level of p≤0.05 was adopted and the software SPSS version 20.0 for Windows was used. The results showed an association between the finalization effect and the attacker's position (χ2 = 107.39, p = 0.0001, ɸ = 0.13), association between the finishing effect and the finishing direction (χ2 = 715, (Χ2 = 587.25, p = 0.0001, ɸ = 0.34), and that the predictive factors of the finalization effect was statistically significant (χ2 = 854.666; p <0.0001). Thus, from the results, it is possible to concluded that the effect of the finalization and the direction of the finalization, suggesting that the position of the player does not influence in obtaining the goal.


RESUMO O estudo objetivou analisar a associação entre a posição da atacante, o local do lançamento e a direção do lançamento com o efeito do lançamento, bem como os fatores preditivos deste. Foram analisadas 6146 ações de ataque de 66 jogos realizados pelas 24 equipes participantes do Campeonato Mundial de Handebol Feminino de 2015. Para a associação entre as variáveis estudadas recorreu-se ao teste do Qui-Quadrado e para análise preditiva utilizou-se à regressão logística multinomial. Adotou-se o valor de significância de p≤0,05 e utilizou-se o software SPSS versão 20.0 para Windows. Os resultados apontaram associação entre o efeito do lançamento e a posição da atacante (��2= 107,39; p=0,0001; ɸ=0,13), entre o efeito do lançamento e o local do lançamento (��2= 715,01; p=0,0001; ɸ=0,34), entre o efeito do lançamento e a direção do lançamento (��2= 587,25; p=0,0001; ɸ=0,34) e que o local do lançamento e a direção do lançamento foram fatores preditivos do efeito do lançamento (��2=854,666; p<0,0001). Assim, a partir dos resultados, pode-se concluir que o efeito do lançamento é predito pelo local do lançamento e pela direção do lançamento, sugerindo que a posição da jogadora não influencia na obtenção do gol.


Subject(s)
Humans , Female , Play and Playthings , Efficacy , Predictive Value of Tests , Mediation Analysis , Sports , Women , Chi-Square Distribution , Athletic Performance
7.
Rev. bras. cineantropom. desempenho hum ; 22: e72597, 2020. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1137246

ABSTRACT

Abstract Maturation interferes with physiological and mechanical aspects of muscle contraction. The aim of the present study was to compare the efficiency of the stretch-shortening cycle (SSC) between different maturation stages. One hundred forty six young people, with 72 boys and 74 girls, were recruited to participate in the study. Sexual maturation was measured and the group was stratified into adolescents (> 3 auto-tanner) and children (<2 auto-tanner). Squat jump (SJ) and countermovement jump (CMJ) performance were measured to measure reactive force (RF) capacity, eccentric utilization ratio (EUR) and pre-stretch augmentation (PSAP). The children did not present statistical difference between SJ and CMJ (t(55)= -1.93; ∆ = -0.61; 95% CI = -1.24 to -0.02; p = 0.058), while the adolescents presented higher performance of CMJ (t(89)= -12.28; ∆ = -2.44; 95% CI = -2.84 to -2.05; p <0.001). In addition, adolescents had higher RF performance (t(144)= 5.18; p <0.0001; 95% CI = 2.53 to 1.13), PSAP (t(144)= 4.38; p <0.0001; 95% CI = 14.00 to 5.29) and EUR (t(144)= 4.38; p <0.0001; 95% CI = 0.14 to 0.05). We conclude that more mature young people have better SSC utilization.


Resumo Maturação interfere em aspectos fisiológicos e mecânicos da contração muscular. O objetivo do estudo foi comparar a eficiência do ciclo alongamento-encurtamento (SSC) em diferentes estágios maturacionais. Cento e quarenta e seis jovens, sendo 72 meninos e 74 meninas, foram recrutados para participar do estudo. Maturação sexual foi mensurada e o grupo foi estratificado em adolescentes (≥ 3 e crianças (< estágio 2). Salto estático (SJ) e o salto contramovimento (CMJ) foram utilizados para mensurar a força reativa (RF), razão de utilização da excêntrica (EUR) e aumento do pré-estiramento (PSAP). As crianças não apresentaram diferença significante entre SJ e CMJ (t(55)= -1.93; ∆ = -0.61; 95% CI = -1.24 to -0.02; p = 0.058), Enquanto que os adolescentes apresentaram maior desempenho de CMJ (t(89)= -12.28; ∆ = -2.44; 95% CI = -2.84 to -2.05; p <0.001). Em adição, adolescentes apresentaram maior RF (t(144)= 5.18; p <0.0001; 95% CI = 2.53 to 1.13), PSAP (t(144)= 4.38; p <0.0001; 95% CI = 14.00 to 5.29) e EUR (t(144)= 4.38; p <0.0001; 95% CI = 0.14 to 0.05). Nós concluímos que jovens com mais maturados apresentam maior capacidade de utilização do SSC.

8.
Article in English | LILACS-Express | LILACS | ID: biblio-1137247

ABSTRACT

Abstract The aim of the present study was to compare the tactical and technical behavior of beginner players in volleyball side-out between four distinct situations of reduced games with different area/player ratios: 4.5 m2 (3.0 m x 3.0 m), 8.0 m2 (4.0 m x 4.0 m), 10.58 m2 (4.6 m x 4.6 m), and 13.52 m2 (5.2 m x 5.2 m). We analyzed 76 games played by 16 players with a mean age of 12.2 ± 0.5 years and experience of 1.2 ± 0.8 years of practice. Tactical and technical behavior was analyzed using an adaptation of the Game Performance Analysis Instrument (GPAI). The analysis was conducted for passing, setting and attacking according to the components related to technical adjustment, technical efficiency and decision-making. The results showed that players presented higher technical and tactical indexes in the passing and setting skills in 4.6 m x 4.6 m and 5.2 m x 5.2 m situations. Also, in the 3.0 m x 3.0 m situation higher technical indexes were found for the attacking. No differences were found in the tactical behavior of attacking for tested situations. We conclude that the environmental constraints imposed by the small-sided games imply distinct technical and technical behaviors. Thus, the pedagogical strategy of using small-sided games for the teaching of volleyball for beginner players must be associated with the intended objectives for each basic volleyball skills.


Resumo O objetivo do presente estudo foi comparar o comportamento tático e técnico de jogadores iniciantes no voleibol no side-out de acordo com quatro situações distintas de jogos reduzidos com diferentes relações área/jogador: 4,5 m2 (3,0 m x 3,0 m), 8,0 m2 (4,0 m x 4,0 m), 10,58 m2 (4,6 m x 4,6 m) e 13,52 m2 (5,2 m x 5,2 m). Foram analisados ​​76 jogos disputados por 16 jogadores com média de idade de 12,2 ± 0,5 anos e experiência de 1,2 ± 0,8 anos de prática. O comportamento tático e técnico foi analisado por meio de uma adaptação do Game Performance Analysis Instrument. A análise foi realizada para a recepção, o levantamento e o ataque de acordo com os componentes relacionados ao ajuste técnico, eficiência técnica e a tomada de decisão. Os resultados mostraram que os jogadores apresentaram índices táticos e técnicos superiores nas habilidades de recepção e levantamento nas situações de 4,6 m x 4,6 m e 5,2 m x 5,2 m. Além disso, na situação de 3,0 m x 3,0 m foram encontrados índices técnicos mais elevados para o ataque. Não foram encontradas diferenças no comportamento tático do ataque para as situações analisadas. Concluímos que as restrições ambientais, impostas pelos pequenos jogos, implicam em comportamentos táticos e técnicos distintos. Assim, a estratégia pedagógica de utilização de pequenos jogos para o ensino do voleibol para jogadores iniciantes deve estar associada aos objetivos pretendidos para cada uma das habilidades básicas do voleibol.

9.
Rev. bras. ciênc. esporte ; 35(2): 469-480, abr.-jun. 2013. tab
Article in Portuguese | LILACS | ID: lil-682461

ABSTRACT

O propósito deste estudo foi comparar o tempo de reação entre atletas de Basquetebol (grupo Basquetebol), Ginástica Artística (grupo Ginástica) e não atletas (grupo controle). Os indivíduos foram avaliados no tempo de reação simples e de escolha através do instrumento MULTPSY 821 e Sistema de Testes de Viena, respectivamente. Os resultados indicaram somente diferença significativa entre os grupos na medida de tempo de reação simples. O grupo controle apresentou maior tempo de reação comparado aos outros grupos. Esses achados indicam que a prática de Basquetebol e Ginástica Artística pode melhorar o tempo de reação simples, que é uma capacidade perceptiva necessária em atividades diárias.


The purpose of this study was to compare the reaction time between Basketball players (group Basketball), Artistic Gymnastics (Gymnastics group) and non-athletes (control group). The subjects were evaluated in simple and choice reaction time through the instrument MULTPSY 821 and Viena Test System, respectively. The results showed only significant difference between groups in the measure of simple reaction time. The control group showed higher reaction time compared to other groups. These findings indicate that the practice of Basketball and Artistic Gymnastics can improve the reaction time which is a perceptual ability needed in daily living activities.


El propósito de este estudio fue comparar el tiempo de reacción entre los atletas de Baloncesto (grupo Baloncesto), atletas de la Gimnasia Artística (grupo Gimnasia) y los no deportistas (grupo control). Los sujetos fueron evaluados en el tiempo de reacción simple y la elección a través del instrumento MULTPSY 821 y sistema de análisis de Viena, respectivamente. Los resultados mostraron diferencias significativas sólo entre los grupos en la medida del tiempo de reacción simple. El grupo control presentó mayor tiempo de reacción en comparación con otros grupos. Estos resultados indican que la práctica del Baloncesto y la Gimnasia pueden mejorar el tiempo de reacción que es una capacidad perceptiva necesaria en las actividades diarias.

10.
Motriz rev. educ. fís. (Impr.) ; 19(2): 391-398, abr.-jun. 2013. ilus, graf
Article in Portuguese | LILACS | ID: lil-678314

ABSTRACT

Este experimento investigou os efeitos da mudança do foco de atenção durante o processo de aprendizagem de uma habilidade motora. Quatro grupos experimentais (foco interno, foco externo, foco interno-externo e foco externo-interno) e um grupo controle praticaram uma tarefa de arremesso de dardo. Durante a fase de aquisição, dois grupos experimentais tiveram uma forma de focalizar a atenção (foco interno ou externo) e os outros dois grupos tiveram o foco de atenção mudado na metade da prática (foco interno-externo ou externo-interno). Os resultados do teste de retenção mostraram que o foco interno-externo resultou em um desempenho mais consistente. Esses resultados sugerem a existência de relação entre os efeitos do foco de atenção e o nível de aprendizagem.


This experiment investigated the effects of changing the attentional focus during the process of learning a motor skill. Four experimental groups (internal, external, internal-external and external-internal focus) and one control group practiced a dart throwing task. During the acquisition phase, two experimental groups had only one focusing attention (internal or external focus), and other two experimental groups had focus of attention changed half way through the amount of practice (internal-external or external-internal focus). The results of the retention test showed that the internal-external focus resulted in a more consistent performance. These results suggest the existence of a relationship between the effects of attentional focus and level of learning.


Subject(s)
Humans , Male , Female , Adult , Attention , Learning , Motor Skills
11.
Rev. bras. ciênc. esporte ; 34(4): 943-953, out.-dez. 2012. ilus
Article in Portuguese | LILACS | ID: lil-663980

ABSTRACT

O presente estudo investigou os efeitos do estabelecimento de metas de curto e de longo prazo na aprendizagem do arremesso de dardo de salão. O experimento foi conduzido em três etapas: pré-teste (10 tentativas); aquisição (60 tentativas), com manipulação da temporalidade da meta; e pós-teste (10 tentativas). Os 33 universitários destros foram divididos em três grupos: meta específica de curto prazo (GEC), meta específica de longo prazo (GEL) e o não meta (GNM). Na análise da precisão e da consistência, a ANOVA two way identificou diferença entre pré-teste e pós-teste e entre os blocos da aquisição. Apesar de todos os grupos terem aprendido a tarefa, não houve diferença entre eles. Sugere-se a realização de novos estudos sobre o tema.


The present study investigated the effects of short and long-term goal setting in the learning of saloon dart throwing. The experiment was conducted in three stages: pretest (10 trials), acquisition (60 trials), with manipulation of the temporality of the goal, and post-test (10 trials). The 33 right-handed university students were divided into three groups: specific short-term goal (GEC), specific long-term goal (GEL) and no-goal (GNM). In the analysis of accuracy and consistency the two way ANOVA identified significant effect between pretest and post-test and between acquisition blocks as well. Although all the groups have learned the task, there was no difference between them. It is suggested further researches on the subject.


El presente estudio investigó los efectos de la meta a corto y largo plazo de puesta enel aprendizaje del salón de lanzar dardos. El experimento se llevó a cabo en tres etapas: pre-test (10 ensayos), la adquisición (60 ensayos), con la manipulación de la temporalidad de la meta, y después de la prueba (10 ensayos). Los 33 estudiantes universitarios de la mano derecha se dividieron en tres grupos: objetivo concreto a corto plazo (GEC), el objetivo específico a largo plazo (GEL) y no se meta (GNM). En el análisis de la exactitud y la consistencia de dos vías ANOVA identificó un efecto significativo entre la pre y post-test y entre bloques de adquisición así. A pesar de todos los grupos han aprendido la tarea, no hubo diferencias entre ellos.

12.
Motriz rev. educ. fís. (Impr.) ; 18(2): 273-279, abr.-jun. 2012. ilus, tab
Article in Portuguese | LILACS | ID: lil-644547

ABSTRACT

A prática mental parece contribuir no processo de aprendizagem motora, mas ainda não estão claros os efeitos do posicionamento e da quantidade de prática mental em relação à prática física, sendo este o objetivo do presente estudo. Setenta e dois universitários de ambos os sexos e novatos na tarefa foram distribuídos em seis grupos de prática combinada (física e mental) para a aprendizagem do arremesso do dardo de salão. Na fase de aquisição, os sujeitos realizaram 50 tentativas de prática física e 18, 90 ou 180 tentativas de prática mental (conforme cada grupo) antes ou após a prática física. Dez minutos após a fase de aquisição foram realizados os testes de retenção e transferência. Não foi observada diferença significante entre os grupos nos testes. Os resultados indicaram que a quantidade e o posicionamento da prática mental não influenciaram a aprendizagem do arremesso do dardo de salão.


Mental practice seems to contribute to the motor learning process but it is still not clear the effects of position and amount of mental practice in relation to physical practice, which was the aim of this study. Seventy two undergraduate students of both sexes and novice in the task were assigned in six groups of combined practice (physical and mental) for learning the dart saloon throwing. In acquisition phase, subjects performed 50 trials of physical practice and 18, 90 or 180 trials of mental practice (according to each experimental group) before or after physical practice. Ten minutes after acquisition phase it was performed retention and transfer tests. The results showed that amount and the position of mental practice did not influence dart saloon throwing learning.


Subject(s)
Humans , Male , Female , Adult , Sports/psychology , Motor Activity
13.
Motriz rev. educ. fís. (Impr.) ; 17(1): 82-92, jan.-mar. 2011. ilus
Article in Portuguese | LILACS | ID: lil-585641

ABSTRACT

Este estudo teve como objetivo investigar os efeitos de duas faixas de amplitude de Conhecimento de Performance (CP) na aprendizagem do saque tipo tênis do voleibol. Essa questão foi testada com uma faixa de amplitude estreita e uma ampla e mais um grupo controle. O estudo foi composto por um pré-teste, fase de aquisição e teste de retenção. Foram analisadas medidas de desempenho e dos componentes do padrão da habilidade. Apesar dos grupos mostrarem desempenho semelhante no teste de retenção, a faixa ampla foi a única que levou a melhora do desempenho. Além disso, a faixa ampla conduziu a mais mudanças no padrão da habilidade do que a faixa estreita ou o grupo controle.


This study aimed to investigate two bandwidth Knowledge of Performance (KP) effects on the learning of the volleyball tennis serve. This question was tested with a thin and wide bandwidth KP plus a control group. The study was composed by a pre test, acquisition phase and retention test. It was analyzed performance and components of the motor pattern measures. Although the groups showed similar performance on retention test, only wide bandwidth conducted to a better performance. Although all groups showed similar performance during retention test only the wide bandwidth conducted to performance improvement. Moreover, the wide bandwidth conducted to more changes in movement pattern than thin bandwidth or control group.


Subject(s)
Humans , Male , Female , Child , Aptitude , Motor Skills , Sports , Volleyball
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