Universidade Federal De Santa Catarina Centro De Desportos Programa De Pós-graduação Em Educação Física Validação Do Teste Progressivo Específico Para Taekwondo

Content Provider	Semantic Scholar
Author	Santana, Jader
Copyright Year	2013
Abstract	Check the validity of a protocol, which aims to physiological assessment and obtaining specific markers is considered a prerequisite when it aims to obtain accurate measurements and can actually be used in prescribing and control of the athlete's training. Recently it has been shown in the literature Specific Test Progressive for Taekwondo (STT), a test that uses motion characteristic (kick Bandal Tchagui) required by Taekwondo competition and aims to present indicators of aerobic capacity and power in athletes Taekwondo. However, we no found reproducibility and concurrent validity of the STT, so that it can be used by researchers and practitioners in sport specific evaluation of athletes of this sport. The objective of this research is to investigate the validity of the STT as a method for assessing aerobic specific Taekwondo athletes. Taekwondo athletes who volunteer for this study were divided into two groups: one group that conducted a test of reproducibility (G1), composed of 12 athletes and the group that conducted a test of concurrent validity (G2), composed of 18 athletes. To participate in the survey athletes should have minimum age of 18 years and at least 3.5 years of experience with the practice of Taekwondo. All study subjects were male. In both protocols the athletes performed with respect range of evaluations approximately 48 hours between tests. The G1 was tested twice (test-retest). The following variables were analyzed: maximum heart rate (HRMAX), heart rate deflection point (HRDP), frequency kick maximum (FKMAX), frequency kick HRDP (FKHRDP) and the maximum lactate posttest (LacMAX). The G2 conducted a STT and incremental treadmill test (IT). During STT the same variables in G1were obtained, beyond VO2max, respiratory quotient (R) and oxygen consumption of HRDP (VO2DPHR) were measured. During the IT beyond FCMAX, HRDP, R e LacMAX were also evaluated the maximum speed (VMAX) and speed of HRDP identified by the method DMAX (VDMAX). For presentation of the data was used descriptive statistics, normality was verified by the Shapiro-Wilk test. A linear correlation was applied for variables obtained in TET and IT. The relationship between the two tests for the different intensity was verified by the analysis of two-way variance (ANOVA) with the intraclass correlation coefficient (ICC) was established to verify the reliability test to retest and the variables of the STT and IT. The Bland-Altman analysis was used to test the agreement between the methods. To check for differences between the mean values in G1 between test and retest, and G2, between STT and IT, t test was used for dependent samples was established and the magnitude of the differences from the effect size (g) .The significance level was p <0.05. The results of protocol reproducibility demonstrated that FCMAX e o HRDP did not differ statistically between test and retest. There were also no significant differences (p <0.05) for FKHRDP and FKMAX between test and retest. The effect size rating for these variables were as follows: FCMAX e HRDP as trivial (g<0.1); ); FKMAX e FKHRDP as trivial/small (g between 0.1 and 0.3) and LacMAX as small/moderate (g between 0.5 and 0.7). The ICC shows that test and retest have very strong correlation for variables FKMAX (0,97), FKHRDP (0,97), FCMAX (0,97) e HRDP (0,92) and a moderate correlation for LacMAX (0,62). The results show that the G2 variables VO2max (49,16 ± 5,26 ml·kg -1 ·min -1 and 50.49 ± 4.42 ml·kg -1 ·min -1 ), 50,49 ± 4,42 ml·kg -1 ·min -1 ), VO2PDFC (43,64 ± 5,55 ml·kg·min -1 and 42,85 ± 4,69 ml·kg -1 ·min -1 ) and HRDP (172 ± 8 bpm e 169 ± 8bpm) showed no significant difference (p<0.05) when comparing the values of STT and IT respectively. FCMAX (190 ± 8 bpm and 192 ± 10bpm), the R (1,12 ± 0,06 e 1,19 ± 0,11) and the LacMAX (8,91 ± 1,70 mmol·l -1 and 11,10 ± 2,34 mmol·l -1 ) were different (p <0.05) between STT and IT. When checking the magnitude of the differences obtained between STT and IT ranks variables were follows: VO2max, LacMAX as trivial/small (d between 0.1 and 0.3); HRDP and VO2HRDP as small (d between 0.3 and 0.5), R as small/moderate (d between 0.5 and 0.7) and FCMAX as moderate (d between 0.7 and 1.1). The ICC shows that all variables obtained in STT and IT show strong correlation. The STT shows up as a valid and reproducible methodology for evaluation specific aerobic of Taekwondo athletes.
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Language	English
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Content Type	Text
Resource Type	Article