Effects of whole body vibration on strength and jumping performance in volleyball and beach volleyball players

The primary aim of this study was to examine the effects of 6-week strength training with whole body vibration (WBV) on leg strength and jumping performance in volleyball and beach volleyball players. Twenty-three sub-elite male volleyball (VB; n=12) and beach volleyball players (BVB; n=11) aged 21.2±3.0 years were divided into two groups and subjected to 6 weeks of strength training (three one-hour sessions per week): (I) 12 players (6 VB and 6 BVB players) underwent training with WBV (30-40 Hz, 1.7-2.5 mm, 3.0-5.7 g), and (II) 11 players (6 VB and 5 BVB players) underwent traditional strength training. Squat jump (SJ) and countermovement squat jump (CMJ) measurements by the Ergo Tester contact platform and maximum leg press test (1RM) were conducted. Three-factor (2 time x 2 WBV use x 2 discipline) analysis of variance for SJ, CMJ and 1RM revealed a significant time main effect (p<0.001), a WBV use effect (p<0.001) and a discipline effect (p<0.001). Significantly greater improvements in the SJ (p<0.001) and CMJ (p<0.001) and in 1RM (p<0.001) were found in the WBV training groups than in traditional training groups. Significant 3-way interaction effects (training, WBV use, discipline kind) were also found for SJ, CMJ and 1RM (p=0.001, p<0.001, p=0.001, respectively). It can be concluded that implementation of 6-week WBV training in routine practice in volleyball and beach volleyball players increases leg strength more and leads to greater improvement in jump performance than traditional strength training, but greater improvements can be expected in beach volleyball players than in volleyball players.

Variabilidad de la estancia media en pacientes hospitalizados en un hospital de Traumatología durante el año 2010

Objetivos: El objetivo principal del estudio es conocer la estancia media hospitalaria y su variabilidad en relación con el motivo de ingreso, en una unidad de hospitalización de un hospital monográfico de Traumatología. (Unión de Mutuas. Castellón) Metodología: Estudio transversal, descriptivo, basado en datos administrativos, cuya población estuvo formada por todos los individuos que tuvieron algún episodio de hospitalización durante el año 2010, siendo este el criterio de inclusión, por orden cronológico de aparición. Resultados: Se identificaron un total de 736 episodios asistenciales y 133 códigos CIE-9CM. La edad media fue 44 (+/-10) años. El 83,25% de los pacientes fueron varones. El código 836.0 (Desgarro de cartílago o menisco interno de la rodilla-actual) fue el diagnóstico más habitual (12,25%) y la artroscopia la técnica quirúrgica mayoritaria. “Fractura de pelvis” (CIE-9CM 808) resultó el código diagnóstico que presentó mayor estancia media con 25 (+/-9.84) estancias y mayor variabilidad de la misma, seguido de los diagnósticos “Fractura de diáfisis de tibia-cerrada”, “Fractura de diáfisis de tibia/peronéabierta”, “Contusión de múltiples sitios, ncoc” y “Fractura de tibia y peroné”. Conclusiones: Se observa poca variabilidad en la estancia media excepto en los procesos diagnosticados como fractura de pelvis y en los relacionados con fracturas de los miembros inferiores.

Evaluación de la higiene bucal en los pacientes de un hospital de media/larga estancia

Objetivo: Conocer los hábitos higiénicos en el colectivo de pacientes durante su estancia en el Hospital de la Magdalena de Castellón e identificar patologías causadas por posibles hábitos higiénicos bucodentales inadecuados. Metodología: Se trata de un estudio descriptivo transversal observacional basado en datos de registro e información de pacientes y cuidadores principales. Se seleccionó una muestra de 50 pacientes en el Hospital de la Magdalena de Castellón hospitalizados. Se realizó un examen odontológico a partir de datos recogidos en un registro diseñado para tal fin. Se usó el índice de LÖE y SILNESS y el índice VIGILD M. Para evaluar la satisfacción se utiliza el test GOHAI. El análisis de los datos se realiza con el programa estadístico R, en el cual saldrán los porcentajes de las patologías BD y hábitos de higiene diarios de los pacientes hospitalizados. Resultados: La edad media de los pacientes estudiados es de 68 años; la mayoría hombres (70%). Observamos en nuestro estudio que las mujeres no fuman y que sus hábitos higiénicos, patologías encontradas son mejores que en los hombres. Sin embargo un 100% de los pacientes estudiados necesitan atención bucodental. Conclusiones: En este estudio se observan problemas de higiene bucodental en los pacientes hospitalizados en un centro de larga estancia de Castellón.

Water polo throwing speed and body composition: an analysis by playing positions and opposition level

The aim of this study was to develop an anthropometric profile on highly skilled male water polo players by specific playing positions. Also, to identify significant relationships between these features an overhead throwing speed in highly skilled male Water Polo players by specific playing positions. Methods: A total of 94 male water polo players (24.5±5.3 yrs) who were playing in the Spanish King´s cup were studied. Subjects were grouped according to their specific playing positions: 15 goalkeepers, 45 offensive wings, 20 center backs and 14 center forwards. Anthropometric assessment was made following ISAK protocols. Hand grip and throwing speed in several situations were also assessed. A one-way analysis of variance (ANOVA) was used to determine if significant differences existed among the four playing positions. Pearson product-moment correlation coefficients (r) were used to determine the relationships of all anthropometric measures with throwing speed and hand grip. The total player’s somatotype was endomorphic-mesomorphic (2.9–5.8–2.3). Center forwards exhibit important anthropometric differences compared with the other specific playing positions in elite male water polo players, but no differences were found in throwing speed by specific playing positions in each throwing conditions. Moreover, a higher number of relationships between anthropometric and throwing speed were found in wings and also in center backs but no relationships were found in center forwards. The data reflects the importance of muscle mass and upper body in the throwing skill. Coaches can use this information in order to select players for the different specific positions.