J.D. Benítez Sillero

J.D. Benítez Sillero
University of Cordoba (Spain) | UCO · LAECOVI Laboratorio de Estudios Sobre Convivencia y Prevención de la Violencia

Doctor in Physical Activity

About

36
Publications
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Introduction

Publications

Publications (36)
Article
Full-text available
Background and AimChanges in adipokines have been related with the development of metabolic syndrome, frequently associated with obesity, and other risk factors. Fitness seems to promote a healthy cardiovascular status and could be a protector factor, just from childhood. Therefore, the present study aimed to evaluate the relationship between fitne...
Article
Full-text available
Physical fitness is related to well-being and health. Adolescence is a key period in the psychological and social development of the person, in which interpersonal relationships gain strength, being bullying a type of violence that can affect the personality of those involved. At present, there is not enough research to determine the relationships...
Chapter
La finalidad de este trabajo es describir las conductas propias del acoso escolar en las clases de Educación Física y compararlas con aquellas que se llevan a cabo en general en el contexto escolar a partir de la valoración del alumnado en centros de Educación Secundaria. Como objetivos específicos, se plantean los siguientes: 1. Analizar las dife...
Article
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The main purpose of this study is to present objective data on the differences in anthropometrics and fitness variables between adult athletes and non-athletes with Down Syndrome (DS) members of the “Down Cordoba Association” (DCA), after adjusting for confounders. Twenty-seven adults, 7 athletes and 20 non-athletes with DS, participated in this st...
Article
Being a victim of bullying or cyberbullying can be linked to participating less in physical activity. Considering that physical self-concept can play an important role in the relationship between both constructs, this study aims to analyse the mediating effect of physical self-concept between victimization/cybervictimization and physical activity,...
Article
Full-text available
Within the determining factors of psychological performance, mental toughness is considered a multidimensional factor, comprising cognitive, affective, and behavioural components together with self-confidence, which is related to success in sports performance as well as psychological health and well-being. The aim of this study was to analyse the r...
Article
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The objective of this study was to analyze the relationships between achievement goals and perceived physical competence in a sample of 4493 adolescents between 12 and 18 years of age (M=14.92, SD=2.08). A cluster analysis was performed to (1) identify cluster profiles of the adolescents based on their goal orientations and perceived physical compe...
Article
Full-text available
(1) Background: Cyberbullying is a social concern in adolescents. The practice of physical activity is a key factor in protection against cyberbullying related to the multiple psychological benefits. Therefore, the study sets out to analyse the relationship between amount, types, enjoyment of physical activity and performance in physical education...
Article
Full-text available
Bullying is a social problem characterized by intentional aggression over time, usually in school contexts and in cyberspace (cyberbullying). There has been growing interest in preventing that phenomenon to reduce its adverse effects. Different studies and reports suggest that Physical Education may be a setting of interest to promote attitudes and...
Article
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O bullying é um problema social caracterizado pela agressão intencional que ocorre ao longo do tempo, geralmente em contextos escolares e no ciberespaço (cyberbullying). Tem havido um interesse crescente na prevenção deste fenômeno, a fim de reduzir os efeitos adversos. Diferentes estudos e relatórios sugerem que o tema da Educação Física pode ser...
Article
Full-text available
Background: The aim of the present work is the elaboration of a systematic review of existing research on physical fitness, self-efficacy for physical exercise, and quality of life in adulthood. Method: Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement guidelines, and based on the findings in 493 articl...
Article
Background: Bullying is a social problem where there is a phenomenon of intentional aggression that occurs in all schools. It has multiple negative consequences for the victim’s psychological health. As school is a context for learning about life in society, strategies to prevent such attitudes and behaviours should be encouraged. Although some stu...
Preprint
Full-text available
Background: The aim of the present work is the elaboration of a systematic review of existing research on physical fitness, self-efficacy for physical exercise, and quality of life in adulthood. Method: Using the PRISMA statement guidelines, and based on the findings in 396 articles, the final sample was composed of 31 articles, which were reviewed...
Article
Objectives Fitness in adolescence is closely related to health even in adulthood. Fitness can be improved with the practice of physical activity however other factors cannot be modified as in the case of birth weight or breastfeeding. Equipment and methods In this study we measured fitness of 233 students 14.76 (± 0.84) years through tests of the...
Article
Full-text available
Physical characteristics are extremely varied in football, but the ability to produce high-intensity efforts and delay fatigue as much as possible in intermittent efforts is very important. There are several studies that analyse these characteristics in professional football but there are fewer that analyse the individual training categories. This...
Article
Full-text available
Las caracteristicas fisicas del futbol son muy diversas, aunque se reconocen como muy importantes la capacidad de realizar esfuerzos de alta intensidad y la de retrasar la fatiga en la mayor medida posible en esfuerzos intermitentes. Son diversos los trabajos que analizan dichas caracteristicas en el futbol profesional, aunque son menores los que a...
Article
Full-text available
http://cdeporte.rediris.es/revista/revista54/artactividad466.htm The objective was to analyse the associations of physical fitness and patterns of physical activity with adiposity in native and foreign. This study was performed with 612 school students (8-10 years). Anthropometric measurements, physical fitness and activity patterns were studied. T...
Article
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Tissue damage resulting from oxidative stress induced by a pathological condition might have more serious consequences in children than in adults. Researchers have not yet identified particular markers - alone or in combination with others - of oxidative stress, or their role in pediatric diseases. The aim of this study was to identify gender-based...
Article
Background: Low levels of cardiorespiratory fitness (CRF) and physical activity (PA) are associated with a risk of the development of metabolic syndrome. Contradictory findings are reported in the literature regarding the influence of sex and CRF and PA on metabolic changes. Objective: The aim of this study was to analyze the effects of CRF and...
Article
To assess the impact of fitness status and physical activity on oxidative stress in prepubertal children, we measured selected biomarkers such as protein carbonyls (PC), lipid peroxidation products, and total nitrites, as well as the antioxidant system: total glutathione (TG), oxidized glutathione (GSSG), reduced glutathione (GSH), superoxide dismu...
Article
Full-text available
To assess classical and non-classical metabolic risk biomarkers in prepubertal children with different levels of cardiorespiratory fitness (CRF). CRF was assessed by the 20 m shuttle run test. To estimate physical activity, participants were observed while engaged in an after-school programme. Additionally, a short test based on a validated questio...
Article
Full-text available
Evaluate the effects of oxidative stress in saliva in young males, according to their cardiorespiratory fitness and taking acute maximal aerobic exercise into consideration. An incremental exercise test (20 meter shuttle run) was used. Seventy healthy male subjects, aged 10 to 14 years, were included in the study and were classified into two groups...
Article
Full-text available
Physical exercise can produce oxidative stress, this situation could contribute cardiovascular risk in children and adolescents. The following study tries to evaluate the oxidative stress produced according to the handgrip strength in infancy. 70 healthy male subjects, ages 10 to 14 years, were studied. In the saliva samples, lipoperoxides (LPO), r...
Article
Full-text available
ResumenEl ejercicio físico puede producir estrés oxidativo en el individuo lo que pueden condicionar el riesgo cardiovascular en niños y adolescentes. Este estudio pretende analizar el estrés oxidativo según la fuerza muscular isométrica de las extremidades superiores en la edad pediátrica. Se estudiaron 70 niños sanos con edades entre 10 y 14 años...
Article
Full-text available
ResumenAfirmaciones como "jugar bien en los deportes de equipo, consiste en elegir la opción de juego más adecuada en cada momento y ser capaz de llevarla a cabo de forma eficiente y consciente durante todo el partido", "la peculiaridad de los juegos deportivos es el proceso de toma de decisión que precede a la ejecución en el juego" hace que en al...
Article
Full-text available
Physical exercise and pregnancy relationship has evolved adapting by the time. Nowadays there are data allow to lay the foundations and establish logical action guidelines for prescription of physical activity in pregnant women, assuring minimum risk and maximum advantages. Therefore, the aim of this review has been compiling the scientific informa...
Article
Resumen: Objetivos: Estudiar la influencia del estrés oxidativo (EO) en la adolescencia, dado que éste se produce por un desequilibrio entre sustancias oxidantes y mecanismos de defensa antioxidante y se ha descrito como uno de los factores que más influye en la disminución progresiva de las funciones biológicas con el avance de la edad. Material y...
Article
Evaluate the influence of puberty in oxidative stress. The study included 38 prepubescent males with Tanner G(1)-P(1) and 32 healthy pubescent boys with Tanner G(3-4)-P(3-4). Weight, height and body mass index, heart rate, blood pressure values were within the 50 percentile 50+/-1SD for their age. The biomarkers were measured in saliva, as a good c...
Article
Full-text available
Intense aerobic exercise has been found to prompt changes in oxidative stress, but in children remains almost unexplored. The aim was to investigate the effect of intense physical exercise on reduced glutathione (GSH as a biomarker of oxidative stress) and adrenocortical response (to verify a certain level of stress after exercise) in 38 prepubesce...
Article
Se estudia la influencia del ejercicio físico intenso, mediante un protocolo ncremental máximo, sobre el nivel más adecuado de cortisol como marcador de estrés bioquímico y el estrés oxidativo producido una muestra de 70 varones, 38 prepuberales (Tanney 32 puberales (Tanner 3-4, 13-14 años de edad) que se encontraban dentro de parámetros somatométr...
Conference Paper
Full-text available
RESUMEN El presente trabajo muestra un estudio comparativo de diversos valores antropométricos (talla, peso e IMC) y de la carrera de velocidad y resistencia (30 metros y 200 metros, respectivamente) niños y niñas de 10 a 12 años en el municipio de Benamejí (Córdoba, España) en dos grupos diferentes y dos fechas distintas. Concluyendo que a estas e...
Conference Paper
Full-text available
La relación de la condición física con la salud debe ser una guía a seguir para el trabajo con adolescentes ya que la misma puede estar muy relacionada con la prevención de enfermedades en la edad adulta especialmente de tipo cardiovascular. De igual forma la disminución de dichos niveles, así como la reducción de la práctica de actividad física so...
Article
El presente artículo pretende establecer unas orientaciones básicas, tanto teóricas como prácticas, en la aplicación del calentamiento para la competición. Creemos que es importante diferenciarlo del calentamiento que se realiza en los entrenamientos y, además, confiamos fielmente en los beneficios que reporta a los deportistas, sobre todo en el pl...
Article
En el presente artículo presentamos una revisión de los aspectos teóricos más importantes que consideramos básicos para la compresión y posterior aplicación de esta cualidad. Además de exponer la conceptualización convencional, nos interesa profundizar en las distintas manifestaciones de la velocidad y sobre todo desarrollar con amplitud los distin...
Article
Una vez llevada a cabo la revisión teórica de la cualidad velocidad, en el presente artículo, siendo continuación del anterior, pretendemos exponer los aspectos metodológicos más relevantes referidos a las distintas manifestaciones de la velocidad y profundizando más específicamente sobre la metodología referida a las distintas edades.

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Projects

Projects (6)
Project
This proof-of-concept project arises in order to value the results of a previous project (COMPECO), where the identified moral, motivational and group factors of influence come into play with the individuals themselves (tendency to play the roles of victims, aggressors, collaborators or prosocial) that are implicit in the phenomena of bullying and cyberbullying. Conceptually, set the moral element as the fourth criterion to define peer unjustified aggressiveness (already in process within the framework of the team that makes the proposal) and transfer the consequent educational model designed to schools and educational centers. The methodology and the work and implementation plan are specified in a series of activities that will be carried out throughout the two years programmed for the duration of the project: 1) Creation of the proof of concept and its value for scientific advancement of the field, through the publication of the results in high impact journals that allow the recognition by the scientific community of said conceptual modification. 2) Create and maintain these values scientifically and educationally alive through the design of a pro-active website that transmits and channels the implementation of the proposed educational model, whose principles have been published in recent years and whose main focus is in the construction of coexistence and cyber-coexistence. 3) Dissemination to governmental and non-governmental organizations, as well as educational centers, of a digitized educational tool that incorporates the moral dimension to improve the management of convivencia.
Project
In a changing and interconnected society, paying attention to the elements that guarantee the development of its individuals becomes a priority element of attention. Phenomena such as bullying place boys and girls in adversity that results in negative consequences for all those involved and leads to the learning of unethical behaviors, isolation or moral indifference that they will incorporate into their repertoire of behaviors. Attending to the processes that make up the immoral and destructive phenomenon of bullying has been a priority task for several decades. It has been shown that the development of risk behaviors in which respect and affective consideration for the other with whom one interacts is not taken into account, far from being perceived as harmful in the context of youth culture, can be seen as appropriate and morally justified. Research advances recognize that it is necessary to pay special attention to the peer group, where a complex relationship system is being developed, whose analysis will allow us to find many of the keys to why bullying, face to face or through the Internet, is occurring. This project arises with the purpose of explaining how the interactive dynamics evolves between the forms, styles and contexts of coping in the implication of adverse phenomena of bullying among equals, a phenomenon that due to its social nature is interactive and changing. Specifically, it is expected to observe what is the evolutionary pattern in the involvement in school bullying based on the moral characteristics and motivations of its protagonists and what processes of selection and influence between the different groups (of reference, prestige and friends) accentuate or mitigate involvement in bullying roles. We hypothesize that, together with the diversity of individual moral and motivational characteristics, there is a certain interdependence of the stable peer groups that boys and girls share. Possible differences based on sex and age will be taken into account. The development of three studies is proposed: 1) a study will be carried out in four stages, each separated by an interval of twelve months.