Estudo dos indicadores de rendimento em voleibol em função do resultado do set

Abstract

O presente estudo pretendeu identificar possíveis indicadores de rendimento, adstritos às ações de jogo, diferenciadores do resultado obtido no set em Voleibol. A amostra consistiu em 65.949 ações realizadas em 550 sets da Liga Mundial 2005, "adulto" masculinos. A coleta de dados teve como suporte instrumental o software "Volleyball Information System". Para testar as diferenças nos indicadores de rendimento, entre as equipes que vencem e perdem os sets, se utilizou o teste t de student de medidas independentes (p < 0,05). As observações cumpriram os requisitos de fidedignidade para serem utilizadas como ferramenta científica, tanto pela percentagem de acordos interobservador como pela estatística Kappa de Cohen. O presente estudo demonstrou que as equipes que vencem os sets obtêm melhores desempenhos em todas as ações de jogo (ataque, bloqueio, saque, defesa, levantamento e recepção), devido à maior frequência de ações ponto/excelente (com exceção do número de recepções excelentes) e à menor frequência de erros. As equipes que vencem os sets apresentam uma distribuição percentual dos pontos ganhos mais equilibrada entre as três ações terminais (ataque, bloqueio e saque) do que as equipes que perdem os sets. O ataque representa, para as equipes perdedoras, um maior peso no total de pontos ganhos através das ações terminais.

Effects of Experimental Volleyball Rules Quantified by Type and Number of Jumps, Hits and Contacts

“…According to Marcelino and Mesquita (2006), the average attack attempt (corresponding to the term "attack hit" in this study) per match is 97.09±20.25 and the average serve attempt (corresponding to "serve hits") is 88.15±16.17. Marcelino et al (2010) found significant differences in reception, block, defense and between set Winners and Losers, whereas in our study significant differences were found for Set outcome for three in-game roles: Libero for reception and Opposite and Middle blocker for block. In the study by Marcelino and Mesquita (2006), the term "average block attempts" (48.30±14.93) corresponds to contacts in block, "dig attempts" (M=55.63±16.48 attempts) corresponds to contacts in defense and "reception attempts" (70.82±14.59) corresponds to contacts in reception.…”

“…For hits, the significant difference for setter and middle blocker by set outcome and in-game role agree with the findings of Marcelino and Mesquita (2010), who found significant differences in attack and serve by set outcome. According to Marcelino and Mesquita (2006), the average attack attempt (corresponding to the term "attack hit" in this study) per match is 97.09±20.25 and the average serve attempt (corresponding to "serve hits") is 88.15±16.17.…”

“…In beach volleyball, Palao et al (2014) found no statistical difference between ingame roles for average jumps, contacts and hits per play. Marcelino et al (2010) reported significant differences for contacts. Serve point, serve continuity and spike point are the performance indicators most correlated with win in volleyball , which is closely related to the parts of this study concerning Hits.…”

“…Several authors Marcelino, Mesquita, Sampaio, & Moraes, 2010) used similar variables for contacts: number of spike points, spike errors, spike continuity, block points, block errors, block continuity, serve points, serve errors, serve continuity, dig excellent, dig errors, dig continuity, set excellent, set errors, set continuity, reception excellent, reception errors and reception continuity, set win and set loss.…”

Performance Analysis WORKSHOP, April 2nd - 5th, 2013 - Alicante, Spain

“…The winning teams showed a balance in the percentage of points obtained by terminal actions in top level (Marcelino, et al, 2010), but the way points are obtained may vary depending on age-category competition. The aim of this research study was to find out the way points are obtained in different age groups and categories of men's volleyball.…”