Physical activity practice and attitudes in canarian teenagers

En el presente estudio de la población adolescente de la Comunidad Autónoma de Canarias, se evidencia que aquellos adolescentes que cumplen con las recomendaciones de práctica de Actividad Física tanto de intensidad moderada como vigorosa frente a los que no las cumplen, muestran a su vez mejores valores en la percepción del conjunto de actitudes que influyen en los niveles de práctica; competencia motriz, disfrute y valor-utilidad otorgada a la misma. Lo cual nos permite afirmar que este conjunto de factores pueden determinar el tipo y grado de participación en actividades físico-deportivas en este sector de la poblaciónIn this actual study of the adolescent population of the Autonomous Region of the Canary Islands, is evident, that teens who comply with the recommendations of practice of physical activity both of moderate intensity as vigorous intensity, compared with those which do not comply, show the best values in the perception of the set of attitudes that influence the levels of practice; perceived competence, enjoyment, perceived value. Which allows us to affirm that this set of factors can determine the type and degree of participation in physical-sport activities in this sector of the populatio

An Embedded System Design for Data Collection and Analysis for Smart Fitness Centers

The application of embedded systems in fitness centers is limited. Therefore, this paper proposes a system that can be integrated into weight machines to incorporate the benefits of the Internet of Things by collecting exercise routine data. A prototype consisting of a FRDM-K64 development board, NFC and distance sensors is proposed. Data of exercise routines such as repetition distance and time intervals were successfully measured by the prototype. Future applications include expanding this concept to cardiovascular or resistance equipment.ITESO, A. C

Orthogonal basis with a conicoid first mode for shape specification of optical surfaces: Reply

We present some comments to the paper “Orthogonal basis with a conicoid first mode for shape specification of optical surfaces: comment.

Estilos de trabajo e inteligencias múltiples

El objetivo del trabajo es determinarla validez yflabilidad del modelo dejos estilos de trabajo, fundamentado en la teoría de las Inteligencias Múltiples (IM). Primero, se analizan los componentes de dicha teoría y su incidencia en el curriculum escolar. En segundo lugar, se estudia el procedimiento de evaluación. Además, se presentan los resultados del estudio empírico realizado con una muestra de 237 alumnos pertenecientes a Educación Infantil y Primaria, escolarizados en centros públicos y privados de la Región de Murcia. Del estudio realizado se desprende que los estilos están asociados a las diferentes inteligencias; además, el inventario de estilos de trabajo arroja una validez y fiabilidad altamente consistente.________________________________ The objective of this work is to determinate the validity and reliability of the model of work styles, as set out In the theory of Multiple Intelligences (MI). First, we analyze the components of this theory and their Incidence in the school curriculum. Second, we study the evaluation procedure. Additionally, we present the results of an empirical study carried out with a sample of 237 students in public and private nursery and primary schools in the province of Murcia, Spain. The study carried out reveals that the styles are associated with the different Intelligences. Furthermore, the inventory of styles shows a highly consistent validity and reliability

Secuencia temporal en el swing de golf de jóvenes promesas

The golf swing is a skill which could be classified as a high velocity hitting where the main goal is that the head of the golf club reaches its maximum velocity at impact time. Ten golf swings executed by four young players were biomechanicaly analyze. Automatic capture with Vicon Oxford Metrics © was used. The absolute values of the linear velocities were higher at men that at women. At the interval analysis, the downswing presented less variation than the backswing. The analisis of the maximum timing sequence showed that depending on the gender they described different order. At men, the secuence started with the hip movement, followed by, left elbow, left shoulder and the club head. At women the hips and left elbow occurred simultaneously followed by the left shoulder and the club head. El swing en golf es una destreza que podríamos catalogar de golpeo de velocidad donde el objetivo es que la cara del palo alcance la máxima velocidad en el momento del impacto. Se han analizado biomecánicamente diez golpeos de cuatro jugadores promesas, mediante el sistema fotogrametría 3D Vicon Oxford Metrics © de captura automática. En primer lugar se ha podido comprobar que los valores absolutos de velocidades lineales eran mayores en los chicos que en los chicas. El análisis de las dos fases del swing indica que la fase de aceleración (downswing) presenta una variabilidad menor que el backwing. El análisis de la secuencia temporal de máximos alcanzados en los segmentos muestra cómo las aEcciones de los mismos siguen un orden diferente en función del género. La secuencia en los chicos empieza por el movimiento de caderas y sigue con el codo izquierdo, el hombro izquierdo y el palo; en las chicas, las caderas y el codo izquierdo actúan simultáneamente seguidos del hombro izquierdo y del palo.Peer Reviewe

Valoración de la fuerza explosiva en esgrima

La fuerza explosiva es una capacidad física muy importante en la esgrima, por lo que su valoración resulta importante para el control y planificación del entrenamiento. El objetivo principal de este estudio fue valorar la fuerza explosiva general y específica en tiradores de alto nivel. Se aplicaron dos tests genéricos de fuerza explosiva (salto vertical sin contramovimiento –SJ-, y salto vertical con contramovimiento -CMJ-), y cuatro tests específicos (Fondo desde parado -F-, Fondo desde Saltos -FS-, Flecha desde parado -FL- y Flecha desde Saltos -FLS-) a 17 tiradores masculinos pertenecientes al equipo nacional español absoluto de esgrima. Se utilizaron dos plataformas de fuerza, una para cada apoyo. A partir de los datos de las fuerzas de reacción se obtuvieron las variables determinantes de la fuerza explosiva tales como el desplazamiento vertical (detente) o la velocidad horizontal de de despegue. Se observa que la batería de tests llevada a cabo proporciona, en un corto periodo de tiempo, una información de gran relevancia para el control y la planificación del entrenamiento con el objetivo de intentar optimizar el rendimiento de los deportistas. Se han encontrado diferencias significativas entre las fuerzas verticales máximas en cada apoyo en el salto vertical lo que puede estar asociado con asimetrías de la fuerza muscular.Explosive strength is one of the most important physical capacities in fencing. The evaluation of explosive strength is fundamental for the planning and control of the training program. The purpose of this study was to assess the general and specific explosive strength in 17 senior male fencers of the national Spanish team. They carried out general explosive strength tests: Squat Jump (SJ) and Counter Movement Jump (CMJ); and specific explosive strength tests: Lunge from static position (F), Lunge from bounces (FS), Flèche from static position (FL) and Flèche from bounces (FLS). From the information of the reaction forces there were obtained the determinant variables of the explosive strength, such as the vertical displacement or the takeoff horizontal speed. The results were obtained from two force platforms, one for each support. Results showed that the tests carried out provided, in a short time, relevant information to plan and control the training program in order to the improve athletes performance. Significant differences were found between the vertical maximal strength in each support in the vertical jump. These differences can be associated with asymmetries of the muscular force.Peer Reviewe

Endoplasmic reticulum aminopeptidase 1 (ERAP1) polymorphism relevant to inflammatory disease shapes the peptidome of the birdshot chorioretinopathy-associated HLA-A∗29:02 Antigen

Birdshot chorioretinopathy is a rare ocular inflammation whose genetic association with HLA-A∗29:02 is the highest between a disease and a major histocompatibility complex (MHC) molecule. It belongs to a group of MHCI- Associated inflammatory disorders, also including ankylosing spondylitis, psoriasis, and Behç et's disease, for which endoplasmic reticulum aminopeptidases (ERAP) 1 and/or 2 have been identified as genetic risk factors. Since both enzymes are involved in the processing of MHC-I ligands, it seems reasonable that common peptide- mediated mechanisms may underlie the pathogenesis of these diseases. In this study, comparative immunopeptidomics was used to characterize >5000 A∗29:02 ligands and quantify the effects of ERAP1 polymorphism and expression on the A∗29:02 peptidome in human cells. The peptides predominant in an active ERAP1 context showed a higher frequency of nonamers and bulkier amino acid side chains at multiple positions, compared with the peptides predominant in a less active ERAP1 background. Thus, ERAP1 polymorphism has a large influence, shaping the A∗29:02 peptidome through length-dependent and length-independent effects. These changes resulted in increased affinity and hydrophobicity of A∗29:02 ligands in an active ERAP1 context. The results reveal the nature of the functional interaction between A∗29:02 and ERAP1 and suggest that this enzyme may affect the susceptibility to birdshot chorioretinopathy by altering the A∗29:02 peptidome. The complexity of these alterations is such that not only peptide presentation but also other potentially pathogenic features could be affectedThis work was supported by grants SAF2011/25681 (Plan Nacional de I+D+i) to JALC, Binational Science Foundation Grant 2009393 to AA, and an institutional grant of the Fundacion Ramon Areces to the CBMS