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Counter movement jump and sport specific frequency speed of kick test to discriminate between elite and sub-elite kickboxers

2020; Palacký University Olomouc; Volume: 50; Issue: 4 Linguagem: Inglês

10.5507/ag.2020.019

2336-4920

Süleyman Ulupınar, Serhat Özbay, Cebrail Gençoğlu,

Sport Psychology and Performance

Background: Although counter movement jump (CMJ) test has been used for years to measure neuromuscular power, it is unclear what is the sensitivity of CMJ in distinguishing between combat athletes.Objective: The aim of this study is to assess the ability of 10-second frequency speed of kick test (FSKT) and CMJ to distinguish between elite and subelite kickboxing athletes.Methods: Twenty-four kickboxers voluntarily participated in this study.The inclusion criteria for all participants were to compete in the national championships at least the last three years.Athletes reaching at least a quarter-final were considered as elite (n = 12, age 21.3 ± 1.8 years, body height 176.0 ± 0.6 cm, body mass 70.91 ± 9.1 kg, training experience 7.2 ± 1.8 years) whereas athletes who could not reach the quarter-finals were considered as sub-elite (n = 12, age 20.0 ± 1.6 years, body height 177.0 ± 4.5 cm, body mass 69.05 ± 5.24 kg, training experience 6.21 ± 0.62 years) in the national championship held in the last tournament.Participants performed 10-second FSKT and CMJ test twice.Independent t-test was used to determine whether there were differences between groups and effect size (Cohen's d) was calculated.Additionally, a discriminant function analysis was used to determine which test most accurately distinguished elite and sub-elite kickboxers.Results: Body height, body mass, body mass index, and training experience did not significantly differ between the groups (p > .05),while CMJ (p = .001,d = 1.49) and FSKT (p < .001,d = 2.56) were significantly higher in the elite group than the sub-elite group.According to discriminant function analyses, FSKT correctly classified participation of 91.7% athletes in the elite and sub-elite groups, while CMJ correctly classified 70.8 % of athletes.Conclusions: This study suggested that FSKT can be used to determine successful and non-successful kickboxers since it is more effective at distinguishing the groups than CMJ test.