%0 Journal Article
%T Influence of the opposition of the goalkeeper on throwing accuracy in senior and u-18 handball players INFLUENCIA DE LA OPOSICI車N EN LA PRECISI車N DEL LANZAMIENTO EN JUGADORES SENIOR Y SUB-18 DE BALONMANO
%A Jes迆s Rivilla-Garcia
%A Fernando Navarro Valdivielso
%A Javier Sampedro Molinuevo
%J E-balonmano.com : Revista de Ciencias del Deporte
%D 2011
%I Federaci車n Extreme?a de Balonmano
%X The accuracy and the speed of the ball determine the success throw in handball. Several studies have analyzed the relationship between both factors, although none included opposition of the goalkeeper, his influence on accuracy is unknown. This study analyzed the throwing accuracy depending on the opposition. Ninety-four senior and U-18 players were evaluated in two situations of throwing accuracy: without (T1) and with opposition of the goalkeeper (T2), where it was requested to throw at maximal velocity. The analysis of the results showed a significantly lower accuracy in situations with opposition of the goalkeeper than without opposition (T1-T2 = 0.989 ㊣ 1.46, p<0.01, t = 6.558, df = 93). In U-18 players this decrease in accuracy was higher (T1-T2 = 1.174 ㊣ 1.52, p <0.01, t = 5.222, df = 45) that senior players (T1-T2 = 0.813 ㊣ 1.394 , p <0.01, t = 4.039, df = 47). Similarly, the throwing accuracy was significantly higher in the senior players that the U-18 players, in both tests (T1: p<0.05, t = 2.105, df = 92. T2: p<0.01, t = 2.993 df = 92). Therefore, we conclude that the opposition of the goalkeeper affects significantly and negatively on the throwing accuracy, with a greater influence on young players. On the other hand, the age determines the throwing accuracy without and with opposition. Keywords: precision, goalkeeper, goal shot, decision-making, test. Resumen  La precisi車n as赤 como la velocidad del bal車n determinan el 谷xito del lanzamiento en balonmano. As赤, varios estudios han analizado la relaci車n entre ambos factores, aunque ninguno incluy車 la oposici車n del portero, desconoci谷ndose su influencia en la precisi車n. El presente estudio analiz車 la precisi車n del lanzamiento en funci車n de la oposici車n. Noventa y cuatro jugadores senior y sub-18 fueron evaluados en dos situaciones de precisi車n de lanzamiento, sin (T1) y con oposici車n del portero (T2), donde se solicit車 lanzar a la m芍xima velocidad posible. El an芍lisis de diferencias mostr車 que la precisi車n era significativamente menor en las situaciones con oposici車n que sin ella (T1-T2=0,989㊣1,46; p<0,01; t=6,558; gl=93). En los jugadores sub-18 la precisi車n disminuy車 en mayor medida (T1-T2=1,174㊣1,52, p<0,01, t=5,222, gl=45) que en los jugadores senior (T1-T2=0,813㊣1,394, p<0,01, t=4,039, gl=47). Igualmente, la precisi車n de los lanzamientos fue significativamente mayor en los jugadores senior que los sub-18 en ambos test (T1: p<0,05; t=2,105; gl=92. T2: p<0,01; t=2,993; gl=92). Se concluye que la oposici車n del portero afecta significativa y negativamente en la precisi車n del lanzamient
%K precisi車n
%K portero
%K lanzamiento a porter赤a
%K toma de decisi車n
%K test
%U http://www.e-balonmano.com/ojs/index.php/revista/article/view/57