Abstract：
:This study was made to analyze the variability and stability of the serve toss in tennis, on the x (side-to-side), y (back-to-front) and z (vertical) axes, with 12 experienced players under the influence of crosswind (induced aerodynamic flow) produced by an industrial ventilator. The players were analyzed individually after serving at maximum speed and accuracy to the intersection point of the centre line and service line ("T "point). The results allow us to conclude that the experienced players tend to stabilize the vertical dimension of the service (z axis). Additionally, this study confirms the invariability of the player height ratio: height of impact (1:1.5) in experienced players even when constrained by the "artificial crosswind. "Given the above, the vertical dimension of the tennis serve is assumed as a constant feature, which is guaranteed in the remaining varying dimensions (y and x axes) of the ball toss. Thus, the variability should be seen as part of the solution and not as something to be avoided by players and coaches. Key PointsAnalysis of the tennis serve variability under the effect of artificial crosswindTwelve experienced tennis players performed a set of 20 free serves (without wind constraints), and four other sets of 20 serves under different practice conditions (with different crosswind intensities)The players tend to stabilize in the z axis and vary in the y- (back-to-front) and x-axes (side-to-side) during the ball toss tennis serve in all the practice conditions (with and without crosswind)THE MAINTENANCE OF A PLAYER HEIGHT RATIO: impact height of approximately 1:1.5 in experienced players, even when constrained by "artificial crosswind".
journal_name
J Sports Sci Medjournal_title
Journal of sports science & medicineauthors
Mendes PC,Fuentes JP,Mendes R,Martins FM,Clemente FM,Couceiro MSsubject
Has Abstractpub_date
2013-06-01 00:00:00pages
309-15issue
2issn
1303-2968journal_volume
12pub_type
杂志文章abstract：:The purpose of this study was to compare three different intervals for a between sets rest period during a common isokinetic knee extension strength-testing protocol of twenty older Brazilian men (66.30 ± 3.92 yrs). The volunteers underwent unilateral knee extension (Biodex System 3) testing to determine their individ...
journal_title：Journal of sports science & medicine
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更新日期：2005-09-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2005-06-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2007-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2017-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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journal_title：Journal of sports science & medicine
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更新日期：2015-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2018-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2014-09-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2019-02-11 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2008-09-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2013-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2012-12-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2006-07-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
doi：
更新日期：2014-05-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2010-03-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章,随机对照试验
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更新日期：2019-08-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2009-06-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2013-12-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2016-05-23 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2013-09-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章,随机对照试验
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更新日期：2018-08-14 00:00:00
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更新日期：2017-06-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2007-12-01 00:00:00
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更新日期：2014-05-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2011-03-01 00:00:00
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journal_title：Journal of sports science & medicine
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更新日期：2013-03-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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更新日期：2005-12-01 00:00:00
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journal_title：Journal of sports science & medicine
pub_type： 杂志文章
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