Comparison of probabilistic and fuzzy approach to evaluating
condition performance level in tennis

J 2015

Comparison of probabilistic and fuzzy approach to evaluating condition performance level in tennis

HUBÁČEK, Ondřej; Jiří ZHÁNĚL a Michal POLÁCH

Základní údaje

Originální název

Comparison of probabilistic and fuzzy approach to evaluating condition performance level in tennis

Autoři

HUBÁČEK, Ondřej; Jiří ZHÁNĚL a Michal POLÁCH

Vydání

Kinesiologia Slovenica, 2015, 1318-2269

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

Sport a aktivity volného času

Stát vydavatele

Slovinsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

http://www.kinsi.si/clanki.php?id=277

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14510/15:00087178

Organizační jednotka

Fakulta sportovních studií

UT WoS

000364045900003

Klíčová slova anglicky

diagnosis; fuzzy theory; probability theory; test battery; tennis

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 27. 4. 2016 17:54, Mgr. Eva Špillingová

Anotace

V originále

Fuzzy theory was defined in the 1960s of the 20th century, and since the 1990s a number of studies have been published dealing with the fuzzy theory and how it can be used in data diagnosis in sports. While the classic theory operates with sharp borders between groups and the key concept is a concept of membership (element either belongs or does not belong to the set), the fuzzy theory enables to minimize issues that arise from strict mathematical and statistical requirements of the probability theory and defines the grade of membership from the interval <0, 1> with the aid of the membership function. Aim of this research study is to present options in which the fuzzy logic can be used when evaluating results of tennis players using the TENDIAG1 test battery and for comparing the tennis players‘ level with the aid of the fuzzy approach and the probability approach. The research set consisted of 12 year old tennis players (n = 88, age: 12,5 ± 0,3; height: 157,4 ± 7,0 cm; weight: 45,3 ± 6,3 kg). The research data were obtaind by the TENDIAG1 test battery in the yeras of 2000 - 2010. The test battery consisted of 9 measurements and of somatic and motor preconditions tests. For individual tests, based on expert evaluations and nature of the data, the memebership function sets were identified. Results of the tennis players were then asigned various grades, based both on the probability approach as well as the fuzzy approach. Comparison of the results obtained by these approaches showed their great mutual relation (r = 0,92, p = 0,05). Detailed analysis of the results showed that the fuzzy evaluation provides a significant differentiation of results of individual tennis players. Especially those, who aquired an equal score in evaluation, the fuzzy evaluation gives a finer and more precise resolution of the overal level.

Citovat

HUBÁČEK, Ondřej; Jiří ZHÁNĚL a Michal POLÁCH. Comparison of probabilistic and fuzzy approach to evaluating condition performance level in tennis. Kinesiologia Slovenica. 2015, roč. 21, č. 1, s. 26-36. ISSN 1318-2269.

@article{1341150,
   author = {Hubáček, Ondřej and Zháněl, Jiří and Polách, Michal},
   article_number = {1},
   keywords = {diagnosis; fuzzy theory; probability theory; test battery; tennis},
   language = {eng},
   issn = {1318-2269},
   journal = {Kinesiologia Slovenica},
   title = {Comparison of probabilistic and fuzzy approach to evaluating condition performance level in tennis},
   url = {http://www.kinsi.si/clanki.php?id=277},
   volume = {21},
   year = {2015}
}

TY  - JOUR
ID  - 1341150
AU  - Hubáček, Ondřej - Zháněl, Jiří - Polách, Michal
PY  - 2015
TI  - Comparison of probabilistic and fuzzy approach to evaluating condition performance level in tennis
JF  - Kinesiologia Slovenica
VL  - 21
IS  - 1
SP  - 26-36
EP  - 26-36
SN  - 13182269
KW  - diagnosis
KW  - fuzzy theory
KW  - probability theory
KW  - test battery
KW  - tennis
UR  - http://www.kinsi.si/clanki.php?id=277
L2  - http://www.kinsi.si/clanki.php?id=277
N2  - Fuzzy theory was defined in the 1960s of the 20th century, and since the 1990s a number of studies have been published dealing with the fuzzy theory and how it can be used in data diagnosis in sports. While the classic theory operates with sharp borders between groups and the key concept is a concept of membership (element either belongs or does not belong to the set), the fuzzy theory enables to minimize issues that arise from strict mathematical and statistical requirements of the probability theory and defines the grade of membership from the interval <0, 1> with the aid of the membership function. Aim of this research study is to present options in which the fuzzy logic can be used when evaluating results of tennis players using the TENDIAG1 test battery and for comparing the tennis players‘ level with the aid of the fuzzy approach and the probability approach. The research set consisted of 12 year old tennis players (n = 88, age: 12,5 ± 0,3; height: 157,4 ± 7,0 cm; weight: 45,3 ± 6,3 kg). The research data were obtaind by the TENDIAG1 test battery in the yeras of 2000 - 2010. The test battery consisted of 9 measurements and of somatic and motor preconditions tests. For individual tests, based on expert evaluations and nature of the data, the memebership function sets were identified. Results of the tennis players were then asigned various grades, based both on the probability approach as well as the fuzzy approach. Comparison of the results obtained by these approaches showed their great mutual relation (r = 0,92, p = 0,05). Detailed analysis of the results showed that the fuzzy evaluation provides a significant differentiation of results of individual tennis players. Especially those, who aquired an equal score in evaluation, the fuzzy evaluation gives a finer and more precise resolution of the overal level.
ER  -

HUBÁČEK, Ondřej; Jiří ZHÁNĚL a Michal POLÁCH. Comparison of probabilistic and fuzzy approach to evaluating condition performance level in tennis. \textit{Kinesiologia Slovenica}. 2015, roč.~21, č.~1, s.~26-36. ISSN~1318-2269.

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