THE COMPARISON OF THE INFLUENCE OF THE AGE EFFECT BETWEEN ELITE JUNIOR MALE AND FEMALE TENNIS PLAYERS

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RIV/00216224:14510/17:00100534

Výsledek na webu

<a href="http://conference.fsps.muni.cz/media/3065171/proceedings-of-the-11th-conference-on-kinanthropology.pdf" target="_blank" >http://conference.fsps.muni.cz/media/3065171/proceedings-of-the-11th-conference-on-kinanthropology.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

THE COMPARISON OF THE INFLUENCE OF THE AGE EFFECT BETWEEN ELITE JUNIOR MALE AND FEMALE TENNIS PLAYERS

Popis výsledku v původním jazyce

The Age Effect theory is based on the assumption that the athletes born in the beginning of the calendar year are more successful than the athletes born in the end of the year. This “success” comes from the different stage of biological development especially in the junior age. The developmental lead, even just a few months, is often mistaken for a talent. Several studies show, that the Age Effect is not as strong in girls’ categories. One of the main reasons is that the physical demands doesn´t play such an important role in girls’ case as they play in the case of boys - especially during the time when biological development is not over yet, which makes the differences between individuals even more obvious. The first aim of this study was to compare the influence of the Age Effect between elite junior male (n = 239) and female (n = 240) tennis players, participant of World Junior Tennis Finals (WJTF) in 2007–2011. The second aim was to compare the influence of the Age Effect between the males (n = 60) and females (n = 60) players in the groups of semifinalists and finalists. The analysis was based on a comparison of the same quarters and same semesters of the year between males and females (Q1 males and Q1 females, Q2 males and Q2 females, etc.). We have used a Shapiro-Wilk test for normality verification and the data was analyzed by the T-Test (modification for percentages) in IBM SPSS software. The results of all players showed, that there were no significant differences between the quarters (-0,37 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; 0,43 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; -0,83 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01;0,01 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01). The second comparison, based on individual semesters also didn´t confirm any statistically significant differences (1,58 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; -1,03 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01), neither did the results of semifinalists and finalists (0,2 &lt; 1,96 = tTab0,05 resp. 2,58 = tTab0,01; -0,2 &lt; 1,96 = tTab0,05 resp. 2,58 = tTab0,01) in individual semesters (no analysis between the quarters was made, because of low number of players in these groups). Although our previous studies confirmed the influence of the Age Effect on the groups of males and females, the comparison of individual quarters and semesters based on genders did not show any significant differences. Because of that, it is possible to conclude that there is no dominant factor of performance in junior tennis players which would significantly differentiate males and females.

Název v anglickém jazyce

THE COMPARISON OF THE INFLUENCE OF THE AGE EFFECT BETWEEN ELITE JUNIOR MALE AND FEMALE TENNIS PLAYERS

Popis výsledku anglicky

The Age Effect theory is based on the assumption that the athletes born in the beginning of the calendar year are more successful than the athletes born in the end of the year. This “success” comes from the different stage of biological development especially in the junior age. The developmental lead, even just a few months, is often mistaken for a talent. Several studies show, that the Age Effect is not as strong in girls’ categories. One of the main reasons is that the physical demands doesn´t play such an important role in girls’ case as they play in the case of boys - especially during the time when biological development is not over yet, which makes the differences between individuals even more obvious. The first aim of this study was to compare the influence of the Age Effect between elite junior male (n = 239) and female (n = 240) tennis players, participant of World Junior Tennis Finals (WJTF) in 2007–2011. The second aim was to compare the influence of the Age Effect between the males (n = 60) and females (n = 60) players in the groups of semifinalists and finalists. The analysis was based on a comparison of the same quarters and same semesters of the year between males and females (Q1 males and Q1 females, Q2 males and Q2 females, etc.). We have used a Shapiro-Wilk test for normality verification and the data was analyzed by the T-Test (modification for percentages) in IBM SPSS software. The results of all players showed, that there were no significant differences between the quarters (-0,37 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; 0,43 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; -0,83 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01;0,01 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01). The second comparison, based on individual semesters also didn´t confirm any statistically significant differences (1,58 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; -1,03 &lt; 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01), neither did the results of semifinalists and finalists (0,2 &lt; 1,96 = tTab0,05 resp. 2,58 = tTab0,01; -0,2 &lt; 1,96 = tTab0,05 resp. 2,58 = tTab0,01) in individual semesters (no analysis between the quarters was made, because of low number of players in these groups). Although our previous studies confirmed the influence of the Age Effect on the groups of males and females, the comparison of individual quarters and semesters based on genders did not show any significant differences. Because of that, it is possible to conclude that there is no dominant factor of performance in junior tennis players which would significantly differentiate males and females.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

50901 - Other social sciences

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 11th International Conference on Kinanthropology

ISBN

978-80-210-8917-4

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

313-321

Název nakladatele

Masarykova univerzita Brno

Místo vydání

Brno, Česká republika

Místo konání akce

Brno, Česká Republika

Datum konání akce

29. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000467203700032