ALL libraries (COBIB.SI union bibliographic/catalogue database)
  • Movement characteristics of elite tennis players on hard courts with respect to the direction of ground strokes [Elektronski vir]
    Martínez-Gallego, Rafael ...
    Previous studies of movement characteristics in tennis have considered the effect of playing surface but have assumed that playing strategies are simply determined by the surface as opposed to being ... under an individual's control. This study considered the selection of cross court or down the line ground strokes as being indicative of playing strategy and measured the outcome of playing these shots in terms of the opponentćs movements. Matches (N = 8) at the 2011 ATP tournament 500 Valencia were recorded and analysed using SAGIT, a computer vision tracking system that allowed both players' movements to be tracked automatically, albeit with operator supervision. The data was split into (N = 188) games for analysis purposes and these lasted a median 174.24 seconds with active time (ball in play) a median proportion of 34.89% (IQR = 10.64%) of total time. During the active time losers of games tended to cover less distance (median = 80.17 m), move quicker (median = 1.38 m s- 1), spend more time in the defensive zones (median = 14.24 s) and less in the offensive zones (median = 44.74 s). These results suggested that game winners tended to dominate game losers, forcing them to exhibit behaviors typically associated with a defensive strategy. Defensive and offensive strategy are not well defined currently and future investigations should consider movements in relation to individual shots, in particular their velocities, at the rally level and by different individuals to better understand successful performance.
    Source: Journal of Sports Science and Medicine [Elektronski vir] : free electronic journal. - ISSN 1303-2968 (Vol. 12, iss. 2, 2013, str. 275-281)
    Type of material - e-article ; adult, serious
    Publish date - 2013
    Language - english
    COBISS.SI-ID - 4355505

    Link(s):

    http://www.jssm.org/inpres/2605/2605pdf.pdf
    http://www.jssm.org/vol12/n2/8/v12n2-8text.php
    http://www.jssm.org/b-v12n2.php

Shelf entry