Abstract for 1° National Congress SISMES (Italian Society of Motor and Sport Sciences) 2-3 October 2009 MATCH ANALYSIS OF SERVING IN ITALIAN MALE TOP SERIES Ciuffarella A., Masedu F., Russo L., and De Angelis M. Human Movement and Sport Science Faculty, L’Aquila, Italy Introduction In volleyball it is possible to discriminate three different styles of serving: Jump serve (JS), Float Jump serve (FJS) and Float Serve (FS). A recent study(1) compared these three styles in terms of effectiveness and speed, but the analyzed sample was very small (4 teams for an amount of only 377 serves from 4 games). Aim of this study was to better investigate the effectiveness of serving modalities in a lager sample of serves. Methods Fourteen teams, of the Italian male top series, were analyzed in 7 official games for an amount of 1062 serves. Player’s role, serve’s type (JS, FJS, FS), defense opponent’s strategy, serve’s target zone, receiver’s evaluation and serve’s outcome were analyzed through the video analysis software (Dartfish 5.0). Statistical analysis of frequencies was performed. Results The 1062 serves showed that: JS was the 66.2%, FJS was the 30.7%, FS was the 3.1% of total serves. Direct aces and indirect aces from JS were respectively 2.3% and 3.4%, from FJS were 0.9% and 0,6%, from FS were both 0%. Wrong serves were 21.6% for JS, 7.7% for FJS and 0% for FS. Bad received serves were 7.1% for JS, 2.8% for FJS and 3% for FS. Discussion Compared to the only previous study(1) on the same topic, the results of the present one, on a much bigger sample, are deeply different. Results underline the greater use of the JS compared to the other styles, but, at the same time, this technique is clearly more risky than the other ones in terms of wrong serves. It has to be added that the benefits of JS, compared to the FJS or to the FS technique, in terms of direct and indirect aces or in terms of bad opponent received serves, are not so big as it is traditionally supposed. References 1. Moras G. et al. J Sports Med Phys Fitness. 2008, 48:31-36.
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