This study provides descriptive data on injuries developed in a subpopulation of Portuguese amateur youth football players that could represent a focus for future prevention.

Audiometric results achieved by titanium prosthesis are promising, but significant differences compared with autologous ossiculoplasty were not present.

El objetivo del estudio fue determinar el efecto de un programa de aprendizaje de las capacidades coordinativas sobre el tiempo en la prueba de patinaje de 300 metros contra reloj individual y la coordinación general. Participaron 14 niños y niñas entre los seis y ocho años de edad que fueron asignados aleatoriamente al grupo experimental (n=7) o grupo control (n=7); la media de la edad del grupo experimental fue 8,1 años (DE=0.5) y la media del grupo control 7,6 años (DE=0.82); con una experiencia deportiva igual para ambos grupos (16 meses). El grupo experimental tuvo un entrenamiento adicional de coordinación antes de la sesión cotidiana durante 20 sesiones distibuidas en siete semanas. El programa constó de 15 ejercicios en escalerilla realizados en cada sesión asi: tres ejercicios con dos series de 10 repeticiones y recuperación de 30 segundos en la primera serie y dos minutos después de la segunda. El grupo control no recibió estímulo adicional y continuó con el entrenamiento cotidiano del patinaje. Se realizó pre y post-test donde se midió la velocidad con la prueba de 300 m contra reloj individual en patines y la coordinación de los niños con el test Korperkoordination Test fur Kinder. Los resultados mostraron que existen diferencias significativas en las comparaciones intra-grupo, sin embargo, al realizar la comparación inter-grupos, se constató que no existen diferencias significativas (p= 0.180) en velocidad, pero en la práctica del patinaje estas diferencias son relevantes porque determinan una disminución en el tiempo de una prueba contra reloj, que puede significar un cambió ecológico significativo.Abstract. The research objective was to determine the effect of a learning program for coordination skills on the time of the 300-meter rollerblading test against individual clock and on general coordination. A sample of 14 boys and girls between six and eight years old, who were randomly assigned to experimental group (n=7) or control group (n=7) participated in the study; average age of the experimental group was 8,1 years old (SD=0,5), whereas in the control group it was 7,6 years old (SD=0.82); participants from both groups had similar sports experience (16 months). During 20 sessions over seven weeks, the experimental group received additional coordination training before each daily session. The program consisted of 15 ladder exercises, where in each session three exercises were performed with two sets of 10 repetitions and recovery of 30 seconds in the first series and two minutes after the second. The control group did not receive additional stimulus and continued with daily rollerblading training. Pre- and post-test were performed, with speed being measured during the 300m test against individual clock, whilst children's coordination was assessed with the Korperkoordination Test fur Kinder Test. The results showed significant differences in intra-group comparisons; however, when performing the inter-group comparison, no significant differences (p = 0.180) were found in speed. Nonetheless, in rollerblading practice these differences are relevant, because they determine a decrease in the time of a test against the clock, which may mean a significant ecological change.

Introduction:The objective of this study was the assessment of the injuries occurred over the competitive rowing lifetime of Portuguese senior rowers. Material and Methods:We sent a questionnaire to all Portuguese senior rowers medalled in the national championships during the 2013-2014 season. We analysed biometric variables, anatomic location, type and circumstances of injury occurrence, type of treatment provided and time of inactivity. For statistical analysis we used parametric and non-parametric statistics with 95% confidence levels (p < 0.05). Results:The questionnaire was answered by 18 of the 18 female and 74 of the 77 male rowers. Females had significantly lower ages, heights and weights and rowed more often sculling boats (p < 0.05). The number of years of practice, as well as the number of injuries per rower was similar, for both females and males. The mean age at the first injury was significantly lower in females (p < 0.001), who also had more progressive lesions than acute ones, although not significantly. In both, the most frequent anatomical location and type of injury were the lumbar region and muscular pathology, with a higher occurrence in winter and spring, during land training. Females sustained longer periods of inactivity, but not significantly. Discussion: The results that were different from those reported by other authors may be related with differences in the studied populations or with other factors that need to be clarified. Conclusion:The injuries sustained by the Portuguese competitive rowers, probably associated with a lower competitive exposure of our athletes, were less severe than those generally reported in the literature.