Validity of an Interval Taekwondo-Specific Cardiopulmonary Exercise Test
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Marcus P. Araujo ; Pedro PS. Soares ; Matheus R. Hausen ; Hilbert S. Julio [1] ; Flávia Porto [2] ; Jonas L. Gurgel
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[1] Universidade Federal Fluminense
Universidade Federal Fluminense
Brasil
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[2] Sports and Physical Education Institute, Rio de Janeiro State University, Rio de Janeiro, Brazil
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- Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 35, Nº. 7, 2021, págs. 1956-1963
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
- Dialnet Métricas: 1 Cita
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Resumen
The objective of this study is to propose and validate an interval taekwondo-specific cardiopulmonary exercise test (ITKDtest) and compare it with running cardiopulmonary exercise test (CPET) and a continuous taekwondo-specific cardiopulmonary exercise test (CTKDtest). Fifteen athletes (age 22 +/- 4 years; body mass 71.1 +/- 10.2 kg; height 178.14 +/- 8.3 cm; and body mass index 22.4 +/- 2.4 kg[middle dot]m-2) performed CPET, CTKDtest, and ITKDtest on a counterbalanced order. Oxygen uptake (V[Combining Dot Above]O2), heart rate (HR), and ventilatory thresholds (VTs 1 and 2) were measured during the 3 tests. ITKDtest started at 30 kicks per minute and increased 10 kicks each 2 minutes, with a period of passive recovery, lasting 1 minute. Interval protocol design simulated the temporal structure of an official taekwondo fight. Significant difference between specific tests was found for V[Combining Dot Above]O2 VT1 (p = 0.03), V[Combining Dot Above]O2 VT1 (%V[Combining Dot Above]O2peak) (p = 0.009), V[Combining Dot Above]O2 VT2 (p = 0.005), and V[Combining Dot Above]O2 VT2 (%V[Combining Dot Above]O2peak) (p = 0.013). Reliability was considered "excellent" for V[Combining Dot Above]O2peak ([alpha] = 0.902; SEM = 0.179), "good" for V[Combining Dot Above]O2 VT1 ([alpha] = 0.708; SEM = 3.823) and HRpeak ([alpha] = 0.803; SEM = 2.987), and "fair" for V[Combining Dot Above]O2 VT2 ([alpha] = 0.659; SEM = 4.498) and HR VT2 ([alpha] = 0.580; SEM = 8.868). Bland-Altman analyses reported a mean difference of 2.9 +/- 6.6 ml[middle dot]kg-1[middle dot]min-1 (CPET-ITKDtest) and 1.4 +/- 6.1 ml[middle dot]kg-1[middle dot]min-1 (CTKDtest-ITKDtest). ITKDtest may be used for measurement of cardiorespiratory variables commonly used in exercise prescription, whereas CTKDtest seems to be a more appropriate method to assess V[Combining Dot Above]O2 and HR at VTs.
