Analysis of the service as a performance factor in high-level volleyball and beach volleyball

L'objectiu final d'aquesta Tesi es identificar aspectes critics de la utilitzacio del servei en el voleibol i voleibol de platja d'alt nivell. Per aconseguir-ho quatre estudis, emmarcats dintre de l'analisi del rendiment esportiu, es van dur a terme. Els resultats de les nostres investigacions mostren que el servei es una habilitat tecnica important en les disciplines del voleibol pero no pot explicar per si mateixa el resultat d'un partit. No obstant aixo, sembla un element clau en la prevencio d'atacs contraris eficacos i el seu resultat esta clarament influenciat per les habilitats executades en salt. Una execucio reeixida del servei es una questio complexa, i te una component fisica, tecnica, estrategica i tactica. Una correcta utilitzacio d'aquesta habilitat tecnica es fonamental per desequilibrar el resultat d'un partit. Ara be, altres aspectes han estat identificats tambe com a rellevants per tenir exit en un partit de voleibol o voleibol de platja. The ultimate goal of this Dissertation was to identify critical aspects of the use of service in high-level volleyball and beach volleyball. To address this purpose four studies on different aspects of service performance, framed into the field of performance analysis, were conducted. The results of our investigation show that service is a very important skill in volleyball disciplines but it cannot explain by itself the result of a match. Nevertheless, it seems a key element in preventing an effective attack. Service behavior and its ability to impair the opponent?s game is clearly influenced by jump abilities. The successful execution of the service is a complex issue, and has a physical, technical, strategic and tactical component. Proper use of this technical skill is capital in making the result of a match uneven. However, some other aspects have been identified as relevant to success in a volleyball or beach volleyball match.