This means that players run continuously trying to create passing and shooting positions, and draw the defensive player out of position (Paavilainen, 2007). As the teams attack from different positions and have a wide variety of playing compound library zones (i.e., direct, from the corner, through the center or in the slot/ goal area), and also use different strategies (fast break and set plays) and techniques (i.e., slap shot, puss, backhand) to score a goal, the performance indicators are of great relevance for ball possession effectiveness in floorball (Paavilainen, 2007). However, the available research in floorball has only focused its attention on injuries (Leivo et al., 2007; Pasanen et al., 2007; Pasanen et al., 2008), and psychological determinants of performance (H?igaard and Ingvaldsen, 2006).
There is no research focused on analyzing floorball performance indicators and their influence on team��s performance outcomes. Therefore, the aim of the present study was to identify the tactical variables related to men��s floorball ball possession effectiveness, as well as to control the interactive effect of situational variables (quality of opposition and game periods). The knowledge of these results can provide additional information to be used by coaches in strategical and conditioning planning as well as in the long-term athletic development process. Material and Methods Sample The sample was composed of 1500 ball possessions, corresponding to 14 games randomly selected from the International Floorball Championships played during 2008 and 2010 (World Championships, Four nations tournament and classificatory phases for World Championships).
The games were provided by the Spanish Floorball-Unihockey Association (SFUF) and by the Swedish Floorball Federation (SFF) being randomly selected from those available on public TV. Procedures The 14 games were analysed through notational analysis performed by four expert technicians. They were all graduates of Sports Sciences with a minimum of 5 years of experience as floorball coaches and were specifically trained for this task. After a 3-week period, to prevent the learning effect, each team re-analysed one game randomly selected. Weighted Kappa correlation coefficients were calculated to assess inter-observer and intra-observer reliability (O��Donoghue, 2010; Robinson and O��Donoghue, 2007).
Obtained intra-observer reliability values ranged between 0.81�C0.94 and inter-observer values ranged between 0.80�C0.90. These values are interpreted as very good/good Anacetrapib reliability (Altman, 1991). Variables The ball possession effectiveness was transformed in a dichotomous variable: successful ball possessions (when the offensive team made a shot on the goal or scored a goal), and unsuccessful ball possessions (when the offensive team missed the shot or shot off goal, received an interception of the shot, committed a foul, made a turnover or made any other rule violation).
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