How triathletes mount their bikes after first transition (T1). A proposal of classification

A proposal is submit for the classification referring to the different ways in which triathletes mount their bikes to start pedalling. This action happens at the end of the transition area (T1) after having gone across on foot, with the bikes at their side, or, led across by hand, in a specific way (Fernández, Romero, Merino and April, 2015). These are unique aspects of this sport, compared to other sports in which a bike is also used. The purpose of this research was concentrates in describing and classifying the motor behaviours that occur at the end of the transition area, in front of the “judge’s line”. This study was bassed on participants of 3 Spanish Elite Championships of different distances (407 triathletes). It was filmed in the moment when they picked up their bikes, passed through the transition area and mounted their bikes. Eleven different ways were discovered on how to mount a bike when passing the judge’s line.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Gender differences and age-related changes in performance at the duathlon world champions

Analyze the differences in performance between genders, and changes in performance in age group category at Short distance during the ITU Duathlon World Championships held between 2005 and 2016.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Effects of a strength and stretching program, combined or Iisolated, on active flexibility in physical education setting.

Purpose. To examine the effects of a two-session-per-week strength and stretching program on sit and reach score among high-school students in the physical education setting. Methods. A sample of 46 high-school students (16 girls and 30 boys) aged 12-14 years from four classes were clustered and randomly assigned to a strength group (n=8), a stretching group (n=12), a strength + stretching group (n=16) or a control group (n=10). During physical education classes, the experimental students performed a 1-minute stretching, a 1-minute strength or a 2-minutes strength + stretching program twice a week a total of 20 weeks. Control students performed the same physical education classes, but they did not follow any strength and/or stretching program. Active flexibility (estimated by the classic sit-and-reach test) was assessed at the beginning and at the end of the intervention program. Results. The Wilcoxon test results showed that students that performed a combined strength and stretching program increased statistically significantly their active flexibility levels from pre-intervention to post-intervention (∆ = 1.8 ± 3.2 cm; p 0.05). Conclusiones. Since in physical education many curricular contents need to be developed each academic year and the subject is also restricted by its limited curriculum time allocation, teachers could improve students’ flexibility combining stretching and strength workout. Therefore, in addition to the improvement of students’ flexibility levels, this intervention program might permit regular development of other physical education curricular contents.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Losses of expression of the antigens A, Lea and Lex and over-expression of Ley in carcinomas and HG-SIL of the uterine cervix

<p>Abstract</p> <p>Background</p> <p>The glycosylation of a great number of molecules, glyco-protein or glycolipids, has been of interest for decades.</p> <p>Objective</p> <p>To compare the expressive patterns of the isoantigenic determinants of histo-blood groups ABH and Lewis in squamous and simple epithelium and in precursors and cancers of the cervix.</p> <p>Methods</p> <p>A total of 36 lesions and neoplasms (10 LG-SIL, 16 HG-SIL and 10 invasive carcinomas) have been studied with immunohistochemical techniques, using monoclonal antibodies (MoAb BG1 to BG8) for precursor chains, blood-group ABH and Lewis group Le^a, Le^b, Le^x, and Le^y, and four types of lectins. In addition, we have studied the expression of p53 protein and PCNA, establishing the rate of proliferation of each lesion. Using PCR techniques, we have also detected part of the intron of the E6 gene of HPV-16.</p> <p>Results</p> <p>In the invasive cervical carcinomas, we observed a loss of expression of the Le^xantigen (p < 0.01). With regard to the progression of the different lesions studied, we found alterations in the patterns of expression of the antigens of the ABH and Lewis blood groups. There was a tendency towards a loss of expression and heterogeneous patterns in the more advanced lesions, as well as over-expression of the Le^yantigens. With PCNA, we established a proliferative rate which tended to be greater in relation to the progression of the cervix neoplasms.</p> <p>Conclusion</p> <p>These results indicate that there is a relation between the losses of histo-blood groups and the progression of the squamous intraepithelial lesions.</p

Differences according to modalities, distances and genders of how the triathletes carry their bicycles for the boxes during the first transition in the Spanish Championships

Introduction The purpose was to compare the proportion in the use (by elite or pro category) of the 4 types of hold-riding the bicycle during the transition between triathletes’ sex (men and women), distance or modality (Olympic, sprint, long and cross) at the Triathlon Spanish Championships. Method The sample was composed by 648 Spanish triathletes, participants of eight elite Spanish championship triathlon during 2016. Results Most of triathletes hold-ride the bike by the seat only while driving it (76.2%), followed by the handlebar (14.9%), seat-handlebar (7.1%) and stem styles (1.9%). The same tendency was showed within sex, category and race subcategories, except for Olympic (seat style was used for the 95% of triathletes), sprint (seat and handlebar styles were similar), and long (seat-handlebar and stem styles were equal). The results showed that there were statistically significantly differences in the proportion of triathletes that used each hold-riding of the bicycle between sex, race, and sex-race subcategories (p 0.05; Cramer´s V = 0.000-0.244). Discussion The difference between men and women is that men have twice the grip on the handlebars. The videos show that this may be because the groups of men in the boxes are greater than those of the women, and this sometimes forces them, to take the bike by the handlebar to control it better and avoid incidents. While in the Olympic, sprint and long-distance elite triathletes mostly used the seat style, and in the cross race the handlebar style.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Comparison of the effect of a Physical Education-Based Stretching Program applied during the Warm-Up, ColdDown and both periods on hamstring extensibility in Primary Schoolchildren.

Purpose. To compare the effects of a physical education-based stretching program applied during the warm-up, cold-down and both periods on hamstring extensibility in primary schoolchildren. Methods. A sample of 237 schoolchildren aged 7-12 years old (128 girls and 109 boys) from two primary school centres participated in the present study and met satisfactorily the inclusion and exclusion criteria. A cluster randomized controlled trial design was used. The classes balanced by grade were randomly assigned to the warm-up (n = 57), cold-down (n = 55), both periods (n = 61) or control groups (n = 64). During the physical education sessions, the students from the interventional groups performed a four-minute stretching program twice a week for eight weeks. The intervention program was applied during the warm-up (4 minutes), cold-down (4 minutes) and warm-up (2 minutes)-cold-down (2 minutes) for the warm-up, cold-down and both periods groups, respectively. Hamstring extensibility (estimated by the back-saver sit-and-reach test) was assessed at the beginning and at the end of the intervention program. Results. The one-way ANOVA (p 0.05). Conclusions. In order to develop students’ flexibility, PE teachers should apply stretching programs during the cold-down period. Due to the negative effect of static stretching on performance as previously found in the literature, it seems that PE teachers should improve students´ flexibility during the cool-down period of the sessions.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Physical activity and spatial use during school break times in children aged four

Poster de CongresoAnalyze quantity of physical activity and use of space during school break times according to gender, in four-year-old pupils.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Population pharmacokinetics and pharmacokinetic/pharmacodynamic evaluation of marbofloxacin against Coagulase-negative staphylococci, Staphylococcus aureus and Mycoplasma agalactiae pathogens in goats

Marbofloxacin is a broad-spectrum fluoroquinolone, and an extra-label use has been reported in horse, sheep and goat. However, extrapolation of dosage regimens from cattle to horse and small ruminants could lead to incorrect dosing due to pharmacokinetic differences among species, increasing the risk of antimicrobial resistance or toxicity. Pharmacokinetic properties of marbofloxacin, including PK/PD analysis, have been studied by intravenous, intramuscular and subcutaneous administration in lactating and non-lactating goats. A population pharmacokinetic model of marbofloxacin in goats was built using 10 pharmacokinetic studies after intravenous, intramuscular, and subcutaneous administration at a dose of 2, 5 and 10 mg/kg. Serum or plasma and milk concentration-time profiles were simultaneously fitted with a non-linear mixed effect model with Monolix software. Level of milk production (lactating and non-lactating) and health status (healthy and un-healthy) were retained as covariates on volume of distribution and clearance. Marbofloxacin concentrations were well described in plasma/serum and milk by the population model. Simulated dose regimens of marbofloxacin administered at 2, 5 and 10 mg/kg by intramuscular route for five days were evaluated (n = 5000 per group). Steady-state fAUCs for each dose regimen were obtained. Probability of target attainment of fAUC/MIC ratios were determined and PK/PDco values (highest MIC for which 90% of individuals can achieve a prior numerical value of the fAUC/MIC index) were established using Monte Carlo simulations (n = 50,000). MIC values for wild type isolates of Staphylococcus aureus, coagulase negative staphylococci, and Mycoplasma agalactiae were determined and tentative epidemiological cutoff (TECOFF) were obtained at 1.0, 0.5 and 0.5 mg/L, respectively. The PK/PDco for the dose regimen of 2 mg/kg/24 h and 5 mg/kg/24 h (0.125 and 0.25 mg/L) were lower than TECOFF (0.5 and 1 mg/L). The dosage regimen of 10 mg/kg/24 h was adequate for intermediate MIC values of 0.125–0.50 mg/L and could be effective for a population with a target fAUC/MIC ratio ˂ 48 for Coagulase negative staphylococci and Mycoplasma agalactiae, but not for Staphylococcus aureus. Results obtained in thi

¿Cuáles son las concepciones que tiene el alumnado sobre el uso, gestión y contaminación del agua en primero de bachi-llerato? Estudio de caso.

En la presente investigación hemos buscado detectar la existencia de concepciones prototípicas y concepciones novedosas respecto a los estudios realizados hasta la fecha, relacionadas con el uso, gestión y contaminación del agua en alumnos de 1º de Bachillerato. Para ello hemos realizado una investigación descriptiva, que también se puede categorizar como investigación – acción, con una muestra de 27 alumnos y alumnas de Bachillerato de la Modalidad de Ciencias y Tecnología dentro de la asignatura de Ciencias para el Mundo Contemporáneo en un Instituto de Educación Secundaria de Sevilla capital, durante el curso 2010/11. Se ha diseñado y puesto en práctica una programación de aula dentro de la cual se han integrado 24 actividades, de las cuales se han seleccionado 11 actividades para su análisis

Novice lecturer in didactics of experimental sciences: improve the professional practice

Como docentes pertenecientes al Departamento de Didáctica de las Ciencias Experimentales y Sociales de la Universidad de Sevilla, en esta comunicación presentamos nuestra experiencia tras la participación en la primera fase del Programa de Formación del Profesorado Novel de Iniciación durante el curso académico 2012/2013. Dicho programa, perteneciente al I Plan Propio de Docencia de la Universidad de Sevilla, tiene como objetivo principal mejorar nuestra práctica docente, a la que nos hemos incorporado recientemente, y por otro lado, recibir apoyo y asesoramiento didáctico y pedagógico de profesionales en activo para desempeñar nuestras funciones. Para participar en este programa, los profesores noveles hemos tenido que elegir a un profesor/a mentor (docente universitario cuya actividad supere los diez años) que tutorice las acciones a emprender durante el presente curso. Concretamente las acciones han sido: - Realización de una serie de cursos centrados mayoritariamente en la actividad profesional, herramientas para la docencia (plataforma virtual, comunicación y oratoria, elaboración de presentaciones), conocimiento de la normativa universitaria, etc. - Llevar a cabo dos ciclos de mejora, consistentes cada uno de ellos en el diseño, desarrollo y análisis de una sesión de clase. Para facilitar el análisis de las dos sesiones de clases y la posterior elaboración de propuestas de mejora, hemos no solo grabado en vídeo dichas sesiones, sino que han asistido a las mismas nuestra mentora y alumnado de psicopedagogía en prácticas. - Realización de una memoria final en la que refleje toda la experiencia llevada a cabo en el programa. Los resultados que esperamos conseguir tras finalizar esta primera fase del programa, serían conocer el funcionamiento de la universidad, ser capaces de planificar y poner en marcha sesiones de clases eficientes cuyo objetivo principal sea el aprendizaje de nuestro alumnado y conocer herramientas que faciliten lo comentado anteriormente