Diferencias en el autoconcepto entre alumnado con altas capacidades y alumnado general: un metaanálisis desde 2005 hasta 2020 / Differences in self-concept between gifted and non-gifted students: Ameta-analysis from 2005 to 2020

Los estudiantes con altas capacidades, aquellos que presentan una mayor probabilidad de lograr metas extraordinarias en uno o más dominios, generalmente difieren del alumnado general en algunas de las dimensiones del autoconcepto, o la percepción que tiene una persona de sí misma. Sin embargo, la investigación actual sobre altas capacidades ha evolucionado introduciendo nuevos posibles moderadores en estas diferencias por lo que se hace necesaria una actualización sobre el tema. El objetivo del presente metaanálisis (referencia: CRD42018094723) fue sintetizar los estudios desde 2005 sobre las diferencias en el autoconcepto entre estudiantes con altas capacidades y alumnado general. Los resultados mostraron que los alumnos con altas capacidades presentan niveles superiores de autoconcepto global y académico, especialmente el matemático. Sin embargo, no se hallaron diferencias en autoconceptos conductual y emocional, y hubo puntuaciones levemente más bajas en autoconcepto social. En el autoconcepto físico, estos estudiantes puntúan notablemente más bajo que el alumnado general. Las diferencias en esta subdimensión están moderadas por los procedimientos de identificación, la procedencia y la edad, por lo que se sugieren que los estereotipos sociales acerca de las altas capacidades, así como los hábitos de actividad física podrían estar detrás de las dichas diferencias.(AU)

Gifted students (i.e., those who are more likely to achieve ex-traordinary goals in one or more domains) generally differ from the non-gifted students in some of the dimensions of self-concept (i.e., a person's perception of him/herself). However, the current research on giftedness has evolvedto introduce new possible moderators of these differences so it has become necessary to carry out an update on the topic. The aim of the present meta-analysis (reference: CRD42018094723) was to synthesise the studies since 2005 on differences in self-concept between gifted and non-gifted students. The results showed that gifted students have higher levels of general and academic self-concept, especially in math self-concept. However, no differences were found in behavioural and emotion-al self-concepts, andonly slightly lower scores in social self-concept. In physical self-concept they scored significantly lower than non-gifted stu-dents. The differences in this sub-dimension are moderated by identifica-tion procedures, geographical area, and age, so it is suggested that social stereotypes about giftedness as well as physical activity habits may be some of the reasons for these differences.(AU)

What Do Children Think of Their Perceived and Ideal Bodies? Understandings of Body Image at Early Ages: A Mixed Study.

Research into children's body perceptions and ideals is scarce despite evidence of body dissatisfaction in childhood. This study aimed to understand preschoolers' body image by employing a mixed design. Using a novel figural scale (Preschoolers' Body Scale) that comprises four child figures ranging in BMI, 395 children ages 4-6 (54% boys) selected their perceived and ideal body and explained why they picked these bodies. Children tended to underestimate their body size and many of them desired slimmer bodies, especially girls and older participants, although body-size perception improved with age. Most children showed body satisfaction, especially boys and younger children. Ideal body choices were not always explained by beauty ideals but by physical abilities, desire to grow up, mothers' comments, and nutrition. Many responses reflected limited body awareness, suggesting body image may not yet be fully formed in preschoolers due to their incipient cognitive development.

Teaching and Learning Process of Decision-Making Units in Talented Young Players From U-10 to U-14.

There are multiple factors that have been studied for talent identification (TI) with regard to sport performance, such as physical and physiological parameters; psychological, social, and contextual parameters; and technical-tactical parameters. However, despite the importance of these indicators for reaching the elite, new trends seem to assure that one of the key elements in a young player is decision making (DM). Thus, in the last decades, research DM in young players has increased. Nevertheless, very little has been done in relation with DM and talented players. The purpose of this study was to analyze and compare the effectiveness, number, and duration of DM units (DMUs) of three groups of talented young players in U-10, U-12, and U-14 levels. Ninety-seven youth players participated in the study. A total of 1,087 actions were analyzed. The Nomination Scale for Identifying Football Talent was utilized to screen the talent pool (N = 18), and the Game Performance Evaluation Tool was used for analyzing the 1,087 actions completed. The results showed that the effectiveness has to be more than 80% for children to be considered talented. Moreover, a greater effectiveness of DMUs was shown in older age groups. The game speed also increased with age. It was revealed that U-12 did not follow the progression in the decisional demands in the formative stages. It is highlighted, therefore, the necessity of reviewing the organizational aspects in the U-12 age group, related mainly to the size of the pitch and the number of players, because it does not follow the same progression in regard to decisional demands. Future studies should follow this study with the U-16, U-18, and U-23 age groups, with the purpose of knowing the effectiveness, duration, and number of DMUs in older age groups. Furthermore, policy makers and teachers/coaches from both educational and soccer context must take these results into account, with the purpose of adjusting the teaching and learning process of talented children in sport.

Observation Criteria for Physical Education Teachers to Identify Gifted Children through Invasion Games.

Whilst in other curriculum subjects, it exists observation criteria to detect gifted pupils, there is a paucity of information in Physical Education. For that reason, we aimed to reveal the observation criteria for identifying gifted pupils in Physical Education in an invasion game. Physical Education (PE) talent was evaluated combining results of questionnaire to experts, parents, and students. A validated nomination scale (NSIFT) and the Game Performance Evaluation Tool (GPET) were used. The research approach used in this study was transversal, descriptive, and inferential. The talent pool was composed of 18 gifted pupils aged 8-14 (Mage = 11.67, SD = 1.53). The results showed that the most discriminating criteria to identify PE talent were found to be precocity in both execution and decision-making in the acquisition of tactical principles and tactical-technical skills. Getting free was the skill that they best mastered. In conclusion, the importance of tactical principles and decision-making as observation criteria is emphasized. Future studies should focus on developing mentoring programs in Physical Education.

Body Dissatisfaction in Adolescents: Differences by Sex, BMI and Type and Organisation of Physical Activity.

The aim of this study was to assess the differences in body dissatisfaction (BD) of male and female adolescents by body max index (BMI) and the quantity, type and organisation of physical activity (PA). To do so, 652 adolescents aged 12-17 years participated in a cross-sectional study. The cognitive-affective component of BD was assessed with the Body Shape Questionnaire (BSQ) and the perceptual component with Gardner's scale for the assessment of, body image (BI). PA was measured with the International Physical Activity Questionnaire (IPAQ-SF) and the item 1 from the Physical Activity Questionnaire for Adolescents (PAQ-A). The results show that sex and BMI are key variables when determining BD. Moderate-to-vigorous PA (MVPA) was moderately associated with a greater body satisfaction in males but no association was found between BD and the participation and organisation of PA. Moreover, the results suggest that participants in aesthetic/lean PA are at a higher risk of suffering from BD than participants in other PA types. These findings provide useful information for the design of programmes promoting healthy lifestyles, weight control and BI concern during the school period.

The Way to Increase the Motor and Sport Competence Among Children: The Contextualized Sport Alphabetization Model.

There is a concern to implement games that will be able to increase the students' motor and sport competence during the sport contents in Physical Education. Some games encompassed in Models-Based Practice (MsBP) are more beneficial for physical and physiological development than others. The main purpose of this study is to compare the degree of physical and physiological performance in several futsal games that have been implemented through two MsBP: the Teaching Games for Understanding (TGfU) and the Contextualized Sport Alphabetization Model (CSAM). The second objective is to analyze the relationship between physical and physiological variables. A quasi-experimental and cross-sectional study with pre- and post-test evaluations had been carried out. The sample was composed of 112 Primary Education students from First to Sixth grade (9.35 ± 1.76 years). Polar Team Pro® technology was implemented to compare and analyze the physical and physiological variables. Data was analyze comparing both models with a two-step cluster model. Afterward, Student's t-test was executed to compare the progression of both models. Besides, two-level multilevel model (MANOVA-ANOVA, followed by MANCOVA- ANCOVA) were also executed by means of applying a 4 versus 4 Small-Sided and Conditioned Game (SSCG). Finally, Pearson correlation between physical and physiological variables was calculated. Results showed that physical and physiological performance was higher in CSAM groups. In this regard, throughout the intervention of both models, results showed significant differences in physical and physiological variables at SSCGs implemented in the CSAM over the games implemented during the TGfU. Additionally, multilevel and MANCOVA post-test analyses shows significant differences in the physical and physiological performance during the post-test 4 vs. 4 SSCG at the CSAM students, in contrast to the TGfU students (p < 0.001). These results demonstrate that both physical (e.g., distance covered) and physiological performance (e.g., Edwards' TRIMP) are significantly higher during CSAM in contrast to TGfU. Moreover, relationship between physical and physiological variables help teachers to adapt sessions to the features of the context.

Analysis of Tactical, Decisional and Executional Behaviour according to the Level of Expertise in Squash.

The objective of this study was to analyse the differences in tactical principles, decision-making and execution of the return shot and drop shot of squash players at different levels of proficiency. The sample was composed of 80 players, divided into four levels of expertise (first national category, second national category, autonomous regional level and provincial level). The Squash Performance Evaluation Tool was used for recording the level of decision-making and execution. The results revealed that reading of the context of the game improved as the level of the player's expertise of both the return shot and the drop shot increased. The correlation between correct decision-making and better quality execution for both the return shot and the drop shot in squash also improved with the player's level of expertise. According to these results, improvements in situational tactical principles and the application of tactical principles, correct decision-making and high-quality execution are essential to develop the athletic performance level among squash players.

Muscle dysmorphia: detection of the use-abuse of anabolic adrogenic steroids in a Spanish sample. / Dismorfia Muscular: detección del uso-abuso de esteroides anabolizantes androgénicos en una muestra española.

Due to a distortion in the body image, the people who suffer from muscle dysmorphia have the self-perception of being less muscular than they currently are. With the aim of increasing their muscular development, they resort to the use of AAS. The purpose of the present study is to know the prevalence of the use of AAS in a Spanish sample affected by muscle dysmorphia. 562 male and 172 female bodybuilders and weightlifters were provided with different questionnaires in order to know, firstly, if they suffered from this disorder and, secondly, the percentage of the participants affected who use these substances. Decision trees and regression was applied to create explanatory models for muscle dysmorphia (R = 0.78 and R2 = 0.62). The results show that almost 50% of the participants, male and female, affected by this disorder use this kind of drugs.

Las personas que padecen Dismorfia Muscular (DM) debido a una distorsión en la imagen corporal, se perciben menos musculosas de lo que son en realidad. Para paliar este problema y con el fin de aumentar su musculatura, algunas de estas personas hacen uso de hormonas ilegales, como son los esteroides anabolizantes androgénicos (EAA), cuya función principal es aumentar la musculatura. El objetivo de este estudio es conocer la prevalencia del uso de EAA en personas afectadas por Dismorfia Muscular. La muestra de este estudio estaba compuesta de 562 hombres y 172 mujeres fisicoculturistas y levantadores de pesas, a los que se le administraron medidas antropométricas, la ecuación Fat-Free Mass Index, el cuestionario Escala de Satisfacción Muscular y el test informatizado Somatomorphic Matrix. Como resultado se crearon diferentes modelos de regresión de la DM, empleando las técnicas estadísticas de árboles de decisión (R = .78 y R2 = .62) de minería de datos. La principal conclusión es que el 50% de participantes afectados por este trastorno usa EAA.

Dismorfia Muscular: detección del uso-abuso de esteroides anabolizantes androgénicos en una muestra española / Muscle dysmorphia: detection of the use-abuse of anabolic androgenic steroids in a Spanish sample

Las personas que padecen Dismorfia Muscular (DM) debido a una distorsión en la imagen corporal, se perciben menos musculosas de lo que son en realidad. Para paliar este problema y con el fin de aumentar su musculatura, algunas de estas personas hacen uso de hormonas ilegales, como son los esteroides anabolizantes androgénicos (EAA), cuya función principal es aumentar la musculatura. El objetivo de este estudio es conocer la prevalencia del uso de EAA en personas afectadas por Dismorfia Muscular. La muestra de este estudio estaba compuesta de 562 hombres y 172 mujeres fisicoculturistas y levantadores de pesas, a los que se le administraron medidas antropométricas, la ecuación Fat-Free Mass Index, el cuestionario Escala de Satisfacción Muscular y el test informatizado Somatomorphic Matrix. Como resultado se crearon diferentes modelos de regresión de la DM, empleando las técnicas estadísticas de árboles de decisión (R = .78 y R2 = .62) de minería de datos. La principal conclusión es que el 50% de participantes afectados por este trastorno usa EAA

People who suffer from muscle dysmorphia due to a distorted body image perceive themselves as less muscular than they actually are. With the aim of increasing their muscular development, they resort to the use of anabolic androgenic steroids (AAS). The purpose of this study is to know the prevalence of the use of AAS in a Spanish sample affected by muscle dysmorphia. The study sample was comprised of 562 male and 172 female bodybuilders and weightlifters who were applied anthropometric measurements, Fat-Free Mass Index equation, Escala de Satisfacción Muscular, and Somatomorphic Matrix software. The results show the creation of decision trees and a regression model was used to create explanatory models for muscle dysmorphia (R = .78 and R2 = .62). The main conclusion is that almost 50% of both male and female participants affected by this disorder use this kind of AAS

Learning and Treatment of Anaphylaxis by Laypeople: A Simulation Study Using Pupilar Technology.

An anaphylactic shock is a time-critical emergency situation. The decision-making during emergencies is an important responsibility but difficult to study. Eye-tracking technology allows us to identify visual patterns involved in the decision-making. The aim of this pilot study was to evaluate two training models for the recognition and treatment of anaphylaxis by laypeople, based on expert assessment and eye-tracking technology. A cross-sectional quasi-experimental simulation study was made to evaluate the identification and treatment of anaphylaxis. 50 subjects were randomly assigned to four groups: three groups watching different training videos with content supervised by sanitary personnel and one control group who received face-to-face training during paediatric practice. To evaluate the learning, a simulation scenario represented by an anaphylaxis' victim was designed. A device capturing eye movement as well as expert valuation was used to evaluate the performance. The subjects that underwent paediatric face-to-face training achieved better and faster recognition of the anaphylaxis. They also used the adrenaline injector with better precision and less mistakes, and they needed a smaller number of visual fixations to recognise the anaphylaxis and to make the decision to inject epinephrine. Analysing the different video formats, mixed results were obtained. Therefore, they should be tested to evaluate their usability before implementation.

Detection of Muscle Dysmorphia symptoms in male weightlifters / Detección de síntomas de dismorfia muscular en halterófilos masculinos

Muscle dysmorphia (MD) is a body dismorphic disorder in which the sufferer is dissatisfied with their body size and shape. MD has yet to be studied in weightlifters, and the objective of this research study is to detect its symptoms in 32 male weightlifters as well as any related characteristics and behaviours. This study involved the distribution of a sociodemographic questionnaire in addition to the Escala de Satisfacción Muscular, the Physical Self-Concept Questionnaire, and the Somatomorphic Matrix, with the anthropometric measurements of the participants also being recorded. The results revealed the existence of body dissatisfaction among athletes and, in some cases, muscle perception that does not equate to reality. The athletes also use substances to build their muscles and enhance their performance, display obsessive muscle checking behaviours, and have low general physical self-concept that stems from their muscle (dis)satisfaction. To conclude, this study confirms the existence of MD in this sport

La Dismorfia Muscular (DM) es un desorden dismórfico corporal en el que la persona que lo padece está insatisfecho con su tamaño corporal, y/o forma. La DM no ha sido estudiada en halterófilos, por lo que el objetivo de esta investigación fue detectar síntomas en 32 halterófilos varones, así como características y comportamientos asociados. Este estudio requirió la cumplimentación de un cuestionario sociodemográfico además de una Escala de Satisfacción Muscular, un Cuestionario de Autoconcepto Físico y el Somatomorpic Matrix, así como el registro de las medidas antropométricas de los participantes. Los resultados revelaron la existencia de insatisfacción muscular entre los deportistas además del uso de sustancias con el objetivo de hacer crecer su musculatura y mejorar su rendimiento, comportamientos obsesivos con el fin de comprobar su musculatura, y bajas puntuaciones en autoconcepto físico como consecuencia de la insatisfacción muscular que sufrían. Se puede concluir que esta investigación confirma la existencia de DM en esta modalidad deportiva

Content Validity and Psychometric Properties of the Nomination Scale for Identifying Football Talent (NSIFT): Application to Coaches, Parents and Players.

The identification of football talent is a critical issue both for clubs and the families of players. However, despite its importance in a sporting, economic and social sense, there appears to be a lack of instruments that can reliably measure talent performance. The aim of this study was to design and validate the Nomination Scale for Identifying Football Talent (NSIFT), with the aim of optimising the processes for identifying said talent. The scale was first validated through expert judgment, and then statistically, by means of an exploratory factor analysis (EFA), confirmatory factor analysis (CFA), internal reliability and convergent validity. The results reveal the presence of three factors in the scale's factor matrix, with these results being confirmed by the CFA. The scale revealed suitable internal reliability and homogeneity indices. Convergent validity showed that it is teammates who are best able to identify football talent, followed by coaches and parents. It can be concluded that the NSIFT is suitable for use in the football world. Future studies should seek to confirm these results in different contexts by means of further CFAs.

Functional Assessment and Injury Risk in a Professional Soccer Team.

At the last World Conference on Sport and Physical Therapy celebrated in Bern (Switzerland, 2015), it was confirmed that the functional skills of an athlete are a very important variable to be considered in the recovery of an injury. On the other hand, its use as a predictive risk tool still lacks solid evidence. The purpose of this study was to determine whether a battery of functional tests (FPT) could be used as a preliminary measure for the season in order to identify the injury risk in a professional soccer team in the Spanish Second Division B League. Fifty-two soccer players (ages of 25.3 ± 4.6 years, 10.33% ± 0.9% fat) were functionally assessed during two seasons (2012⁻2013 and 2013⁻2014) and analyzed from an injury perspective. A total of 125 injuries were recorded. The sample was grouped based on the number of injuries and the required absence days. Except for the bipodal vertical jump (CMJ), none of the functional tests revealed differences among the groups. The correlation study between the functional condition and the suffered injuries did not show any significant results.

La Dismorfia Múscular en diferentes deportes: fútbol, gimnasia, halterofilia, natación y triatlón / La dismorfia muscular em diferentes deportes: futebol, gimnasia, halterofilia, natação e triatlón / Muscular dysmorphia in different sports: soccer, gymnastics, weightlifting, swimming and triathlon

La Dismorfia Muscular (DM), es un trastorno dismórfico corporal cuyos afectados se muestran insatisfechos con su tamaño y/o forma corporal. Se ha estudiado en deportistas de diferentes modalidades (Baghurst y Lirgg, 2009), no obstante se consideran insuficientes las investigaciones realizadas, por tanto el objetivo de este trabajo fue detectar síntomas de DM entre 485 deportistas (387 hombres y 98 mujeres). Las modalidades deportivas representadas fueron halterofilia (7.8 %), gimnasia artística (12.8 %), natación (10.9%), fútbol (44.1 %) y triatlón (24.3 %). Este estudio requirió la cumplimentación de un cuestionario sociodemográfico, la Escala de Satisfacción Muscular, el Cuestionario de Autoconcepto Físico y el Somatomorphic Matrix, además del registro de las medidas antropométricas de los participantes. Los resultados revelaron la existencia de DM entre los deportistas, además de insatisfacción muscular y relaciones significativas entre los dominios del autoconcepto físico relacionados con ésta (autoconcepto físico general y atractivo físico (r = .73, p < .01), autoconcepto general y condición física (r = .72, p < .01)) (AU)

Muscular Dysmorphia (DM) is a body dysmorphic disorder whose sufferers are dissatisfied with their size and / or body shape. It has been studied in athletes of differents sports (Baghurst and Lirgg, 2009), but researchs is not enough. Therefore, the objective of this work was detected DM symptons among 485 athletes (387 men and 98 women). The sports represented were weightlifting (7.8%), artistic gymnastics (12.8%), swimming (10.9%), football (44.1%) and triathlon (24.3%). This study required the implementation of a sociodemographic questionnaire, the Escala de Satisfacción Muscular , the Physical Self-Concept Questionnaire and the Somatomorphic Matrix, in addition to collection the anthropometric measures of the participants. The results revealed the existence of DM symptoms among athletes, as well as muscular dissatisfaction and significant relationships between the domains of physical selfconcept related to this (general physical selfconcept and physical attractiveness (r = .73, p <.01), and general selfconcept with physical condition (r = 0.72, p <0.01)) (AU)

A Dismorfia Muscular (DM) é uma perturbação dismórfica corporal em que os sujeitos se mostram insatisfeitos com o seu tamanho e/ou forma corporal. Embora o número de investigações efetuadas seja escasso, a DM tem sido estudada em desportistas de diferentes modalidades (Baghurst y Lirgg, 2009). Neste sentido, o objetivo deste estudo é perceber quais os sintomas de DM que os desportistas apresentam. Para o efeito, foram analisados 485 desportistas (387 homens e 98 mulheres), das modalidades de halterofilia (7.8%), ginástica artística (12.8%), natação (10.9%), futebol (44.1%) e triatlo (24.3%). Para a recolha de dados foi utilizada uma bateria de testes composta por dados sociodemográficos, Escala de Satisfação Muscular, Questionário de Autoconceito Físico, e pelo Somatomorphic Matrix, juntamente com o registo das medidas antropométricas dos participantes. Os resultados revelaram a existência de sintomas de DM entre os desportistas, insatisfação muscular e correlações significativas entre os domínios do autoconceito físico relacionados com ela (autoconceito físico geral e atração física (r = .73, p < .01), autoconceito geral e condição física (r = .72, p < .01)) (AU)

Programa de Actividad Física Extracurricular en Adolescentes con Sobrepeso u Obesidad / Effects of an After-School Physical Activity Program on Overweight Adolescents / Efeitos do programa de atividade física extracurricular em adolescentes com sobrepeso ou obesidade

Nuestro objetivo en este estudio es comprobar la eficacia de un programa de actividad físico-deportiva (PAF) extracurricular, en un grupo de adolescentes con sobrepesoobesidad, durante un período de 6 meses, respecto al consumo máximo de oxígeno, frecuencia cardíaca de recuperación, presión arterial e índice de grasa cintura/cadera, y ver las diferencias en cuanto al género. El estudio lo realizamos con 38 estudiantes de primer ciclo de secundaria, con un IMC superior al percentil 85. Los resultados reflejan mejoras significativas en el grupo experimental (GE), tras la realización del PAF, comparado con el grupo control (GC). Los componentes del GE mejoran en las variables fisiológicas y antropométricas, y también en función del género. Por otro lado, los datos obtenidos por el GC, reflejan una leve mejora en cuanto al VO2max, pero no en el resto de variables. Estos resultados sugieren la importancia de un adecuado programa de actividad físico-deportiva como contribución a mejorar parámetros cardiovasculares en adolescentes.

The aim of this study was to test the effectiveness of an extracurricular sport and physical activity program (PAP) with a group of overweight-obese adolescents for a period of six months, comparing differences in maximum oxygen uptake, recovery heart rate, blood pressure and waist / hip body fat index, as well as differences in the results based on gender. The study was conducted with 38 junior high school students with a BMI above the 85th percentile. Results showed significant improvements in the experimental group (EG) after completion of the PAP compared to the control group (CG). Improvements were observed in the EG in physiological and anthropometric variables and also based on gender. Moreover, the data obtained from the CG reflects a slight improvement in the VO2max but not in the other variables. These results suggest the importance of an adequate program of physical and sporting activities to contribute to improving cardiovascular parameters in adolescents.

O objetivo deste estudo foi testar a eficácia de um programa de atividades físico-esportivas (PAF) extracurricular em um grupo de adolescentes com sobrepeso e obesidade, por um período de seis meses, com o consumo máximo de oxigênio, frequência cardíaca de recuperação, pressão arterial e índice de gordura corporal cintura/quadril, e verificar as diferenças de gênero. O estudo foi realizado com 38 estudantes do primeiro ciclo da escola secundária que possuíam um IMC acima do percentil 85. Os resultados mostram melhoras significativas no grupo experimental (GE), após a realização do PAF, em comparação com o grupo controle (GC). Os componentes do GE melhoraram as variáveis fisiológicas e antropométricas, assim como em função do gênero. Por outro lado, os dados obtidos pelo GC refletem uma ligeira melhora em termos de VO2max, mas não nas outras variáveis. Esses resultados sugerem a importância de um programa adequado de atividades físico-esportivas como contribuição para a melhoria de parâmetros cardiovasculares em adolescentes.

El comportamiento visual de bloqueadoras juveniles de voleibol y su relación con la precisión de su respuesta / / Comportamento visual dos juvenis de bloqueio voleibol e sua relação com a precisão de sua resposta / Visual behaviour of youth volleyball blockers and its relationship with their response accuracy

El presente estudio examina el comportamiento visual de jóvenes jugadoras de voleibol en la acción del bloqueo. El objetivo fue analizar las estrategias de búsqueda visual y las principales localizaciones de las fijaciones en el transcurso de la acción, estableciendo relaciones entre éstas y el porcentaje de aciertos. 29 jugadoras de voleibol (17,4 ± 0,9 años de edad) debían decidir la dirección de la colocación durante la visualización de secuencias de vídeo proyectadas a tamaño real. Se registraba su decisión mediante el movimiento de las jugadoras, que fue grabado por una cámara de vídeo a 25 fps y se analizó fotograma a fotograma. El comportamiento visual de las jugadoras se obtuvo mediante un sistema de seguimiento de la mirada (Mobile Eye de ASL), y se analizó en función de las dos direcciones de la colocación: zona 3 y zona 4. Se calculó el coeficiente de correlación de Pearson entre el Porcentaje de aciertos totales y las diferentes variables de comportamiento visual, y se aplicó la estadística inferencial para comprobar las diferencias en función de la zona. Las jugadoras estaban más sincronizadas con la información relativa al balón que con la contenida en la colocadora, siendo esa la fuente de información en la que principalmente basaron sus decisiones. La fijación de la zona Balón-Muñeca en los momentos cercanos al contacto puede ser la clave para lograr una correcta anticipación en esta acción, ya que permitiría extraer información del balón y del brazo de la colocadora al mismo tiempo mediante la visión periférica (AU)

The present study examines the visual behavior of young volleyball players during block action. The aim was to analyze visual search behaviour and the main locations during the action, establishing relationships between them and the percentage of correct answers.29 female volleyball players (17,4 ± 0,9 years old) should decide the direction of the setting while the viewed video sequences projected in actual size. The players registered their decision through their movement, which was recorded by a video camera at 25 fps and analyzed frame by frame. Visual behavior of the players is obtained through a system of eye tracking (ASL Mobile Eye), and analyzed according to the two different ball destinations: Zone 3 and Zone 4. Pearson correlation coefficient was calculated between the percentage of total hits and the different variables of visual behavior, and inferential statistics were applied to test for differences depending on the area. Players were more attuned to the information on the ball with that contained in the setter, and this is the source of information on which they based their decisions primarily. Fixing the ball-wrist area in early contact times may be the key to a correct anticipation in this action, as it would allow extracting information of the ball and the arm of the setter while using peripheral vision (AU)

O presente estudo analisa o comportamento visual dos jogadores de vôlei jovens no fechamento ação. O objetivo foi analisar as estratégias de busca visual e as principais localizações dos elementos de fixação no curso da ação, estabelecendo relações entre eles ea porcentagem de acertos. 29 jogadores de voleibol (17,4 ± 0,9 anos de idade) deve decidir no sentido da colocação ao exibir sequências de vídeo projetadas tamanho real. Os jogadores inscritos a sua decisão através do seu movimento, que foi gravado por uma câmera de vídeo a 25 fps e analisadas quadro a quadro. O comportamento visual dos jogadores é obtido através de um sistema de rastreamento (ASL móvel do olho) do olho, e analisados de acordo com os dois sentidos de colocação: Zonas 3 e 4. O coeficiente de correlação de Pearson foi calculado entre a porcentagem do total de hits e as diferentes variáveis de comportamento visual e estatística inferencial foram aplicados para testar as diferenças, dependendo da área. Os jogadores estavam mais sintonizados com a informação sobre a bola com a contida no setter, e esta é a fonte de informação em que se basearam as suas decisões, principalmente. Fixação da área de bola-doll em tempos de contato próximos pode ser a chave para a antecipação correta nesta ação, uma vez que permitiria extrair informação da bola e no braço do setter ao usar a visão periférica (AU)

Physical perceptions and self-concept in athletes with muscle dysmorphia symptoms

Individuals affected by Muscle Dysmorphia (MD; body image disorder based on the sub estimation of muscle size), practice weightlifting in order to alleviate their muscular dissatisfaction. Although physical activity is associated with increased physical self-perception, we assume that this was not reproduced in full in people with MD. The study sample consisted of 734 weightlifters and bodybuilders, 562 men and 172 women, who completed the Escala de Satisfacción Muscular, the Physical Self-Concept Questionnaire, and from whom measures of body fat and Fat -Free Mass Index (FFMI) were obtained. The results showed that people suffering from MD symptoms, overall, have poorer physical self-concept perceptions (F = 18.46 - 34.77, p < .01) (AU)

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Physical perceptions and self-concept in athletes with muscle dysmorphia symptoms.

Individuals affected by Muscle Dysmorphia (MD; body image disorder based on the sub estimation of muscle size), practice weightlifting in order to alleviate their muscular dissatisfaction. Although physical activity is associated with increased physical self-perception, we assume that this was not reproduced in full in people with MD. The study sample consisted of 734 weightlifters and bodybuilders, 562 men and 172 women, who completed the Escala de Satisfacción Muscular, the Physical Self-Concept Questionnaire, and from whom measures of body fat and Fat -Free Mass Index (FFMI) were obtained. The results showed that people suffering from MD symptoms, overall, have poorer physical self-concept perceptions (F = 18.46 - 34.77, p < .01).

Análisis del comportamiento visual y la toma de decisiones en el bloqueo en voleibol / Analises do comportamento visual e a toma de decisões no bloqueio em voleibol / Analises do comportamento visual e a toma de decisões no bloqueio em voleibol

El presente trabajo aborda el estudio del comportamiento visual y la toma de decisiones de jugadores de voleibol en la acción del bloqueo, ante dos situaciones diferentes de colocación: en apoyo y en salto. La muestra está compuesta por 7 jugadores (M=25,14 ± 3,98 años de edad) que competían de forma federada en categoría absoluta. Éstos se han dividido en dos grupos experimentales en función de su éxito en la toma de decisiones. Se utilizó un sistema de seguimiento de la mirada (Mobile Eye de los laboratorios ASL) para analizar el comportamiento visual. Los resultados revelan que los jugadores más exitosos presentan un mayor ratio de búsqueda de visual y que la fijación de la zona Balón-Muñeca es la más repetida para extraer información en base a la cual tomar la decisión, sobre todo cuando la colocación se realiza en salto (AU)

The present paper studies the visual behavior and decision making of volleyball players in a blocking task, across two different types of setting: in backup and in jump. 7 volleyball players (M=25,14 ± 3,98 years) who plays in absolute federate category took part in this study. They are divided into two experimental groups in base of their performance in a decision making test. An eye tracker (Mobile Eye from ASL laboratory) was used for analyzed the gaze behavior of the volleyball players. Results reveal that successful players have a more visual search rate; also the ball-wrist fixation is the most repeated fixation, used in order to extract information for make the right decision, especially in jump setting (AU)

O presente artigo refere-se ao estudo do comportamento visual e a toma de decisões de jogadores de voleibol na ação do bloqueio, diante de duas situações diferentes de colocação: em apoio no salto. A mostra esta composta por 7 jogadores (M=25,14 ± 3,98 anos de idade) que competiam de forma federada na categoria absoluta. Os grupos foram divididos em experimentais em função do êxito na toma de decisões. Foi utilizado um sistema de seguimento do olhar (Mobile Eye do laboratório ASL) para analisar o comportamento visual. Os resultados revelam que os jogadores com mais sucesso apresentam um maior ratio de campo visual e que a fixação da zona bola-munheca é a mais utilizada para extrair informação baseada na toma de decisão, principalmente quando a colocação é realizada no salto (AU)

Contribución para el criterio diagnóstico de la Dismorfia Muscular (Vigorexia) / Contribution of the diagnostic criteria for muscle dysmorphia (Bigorexia)

La Dismorfia Muscular o Vigorexia, es un trastorno mental cuyo foco de preocupación es la subestimación del tamaño y forma muscular, como consecuencia de la distorsión en la imagen corporal que padecen las personas afectadas. Se trata de un trastorno novedoso y, por lo tanto, no se encuentra clasificado en los manuales de desórdenes y trastornos mentales existentes. Mientras unos autores proponen su clasificación bajo un Trastorno de la Conducta Alimentaria (TCA), otros defienden que se trata de un Trastorno Dismórfico Corporal (TDC), o incluso se ha llegado a justificar su posible clasificación como Trastorno Obsesivo-Compulsivo (TOC). Ante la disparidad de criterio, en el presente estudio pretendemos contribuir en la clasificación de la Dismorfia Muscular, como desorden mental, mediante la técnica de clasificación árbol de decisión. Los elementos que cobran mayor relevancia dentro de este método clasificatorio son aquellos relacionados con el tamaño y forma corporal que los participantes tienen, se perciben y desean. A la luz de estos resultados contribuimos a clasificar la Dismorfia Muscular bajo el prisma de un TDC (AU)

Muscle Dysmorphia or Bigorexia is a mental disorder whose focus of concern is the underestimation of body size and shape as a result of the distortion in body image experienced by those affected. This is a new mental disorder and, therefore, is not yet classified in the manuals for mental disorders. While some authors propose its classification under an Eating Disorder (ED), others argue that it is a Body Dysmorphic Disorder (BDD), or have even been able to justify its classification as an Obsessive-Compulsive Disorder (OCD). Due to the disparity of opinions, this study aims to contribute to classifying Muscle Dysmorphia, as a mental disorder, by the decision tree classification technique of data mining. The items that take on increasing importance within this classification method are the ones related to body size and shape that participants have, perceive and desire. The results inform us that the most important variables are related to a BDD. This is the reason why we contribute to classifying Muscle Dysmorphia through the diagnostic criteria of BDD (AU)