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Proposal of a New Specific Cardiopulmonary Exercise Test for Taekwondo Athletes

Araujo, Marcus P.1,2; Nóbrega, Antônio C.L.1; Espinosa, Gabriel1,2; Hausen, Matheus R.1,2; Castro, Renata R.T.3; Soares, Pedro P.1; Gurgel, Jonas L.1,2

Journal of Strength and Conditioning Research: June 2017 - Volume 31 - Issue 6 - p 1525–1535
doi: 10.1519/JSC.0000000000001312
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Araujo, MP, Nóbrega, ACL, Espinosa, G, Hausen, MR, Castro, RRT, Soares, PP, and Gurgel, JL. Proposal of a new specific cardiopulmonary exercise test for taekwondo athletes. J Strength Cond Res 31(6): 1525–1535, 2017—The objective of this study is to evaluate the cardiorespiratory variables of Taekwondo athletes while performing incremental exercise test on an ergometer using a ramp protocol and to propose a specific protocol for assessing these physiological variables during Taekwondo practice. Fourteen athletes participated in 2 incremental exercise tests: a treadmill exercise test (TREADtest) and a Taekwondo-specific exercise test (TKDtest). The TKDtest consists in 1-minute stages of kicks with an incremental load between then. The subjects perform kicks each time a sound signal was heard. Heart rate (HR), oxygen uptake (V[Combining Dot Above]O2), and their reserve correspondents (V[Combining Dot Above]O2R and reserve heart rate [HRR]) were divided into quartiles to verify their kinetics along the tests. Significant difference between 2 tests was found only for V[Combining Dot Above]O2R (p = 0.03). Regarding the quartiles, significant differences were found for HR in the first (p = 0.030) and second (p = 0.003). Analyzing the regression curves, significant differences were found for HR for intercept (p = 0.01) and slope (p = 0.05) and HRR for slope (p = 0.02). Analysis showed that significant reliability, with intraclass correlation coefficient (ICC), was found for the V[Combining Dot Above]O2peak (ICC = 0.855, p = 0.003), V[Combining Dot Above]O2 in ventilatory thresholds 1 (ICC = 0.709, p = 0.03) and 2 (ICC = 0.848, p = 0.003). Bland-Altman analyses reported a mean difference ± the 95% limits of agreement of 2.2 ± 8.4 ml·kg−1·min−1 to V[Combining Dot Above]O2peak. The TKDtest is reliable for measurement of cardiorespiratory variables, and the behavior of these variables differs mainly from TREADtest, probably because of the motor task performed.

1Graduate Program on Cardiovascular Sciences, Medical Science Center, Fluminense Federal University (UFF), Rio de Janeiro, Brazil;

2Biomechanics Research Group (GPBIO), Physical Education Institute, Fluminense Federal University (UFF), Rio de Janeiro, Brazil; and

3Biological and Health Science College, Iguaçu University (UNIG), Nova Iguaçu, Brazil

Address correspondence to Jonas L. Gurgel, jonasgurgel@terra.com.br.

Copyright © 2017 by the National Strength & Conditioning Association.