title: Critical power concept adapted for the specific table tennis test: comparisons between exhaustion criteria, mathematical modeling, and correlation with gas exchange parameters.
abstract: The purposes of this study were to determine and to compare the critical power concept adapted for the specific table tennis test (critical frequency - C F ) estimated from 5 mathematical models and using 2 different exhaustion criteria (voluntary and technical exhaustions). Also, it was an aim to assess the relationship between C F estimated from mathematical models and respiratory compensation point (RCP), peak oxygen uptake ( V˙O (2PEAK)) and minimal intensity at which V˙O (2PEAK) ( F V˙O (2PEAK)) appears. 9 male table tennis players [18(1) years; 62.3(4.4) kg] performed the maximal incremental test and 3-4 exhaustive exercise bouts to estimate C F s (balls · min (-1)). The exhaustion time and C F obtained were independent of the exhaustion criteria. The C F from 3-parameter model [45.2(7.0)-voluntary, 43.2(5.6)-technical] was lower than C F estimated by linear 2-parameter models, frequency-time (-1) [53.5(3.6)-voluntary, 53.5(3.5)-technical] and total ball thrown-time [52.2(3.5)-voluntary, 52.2(3.5)-technical] but significantly correlated. C F values from 2 linear models were significantly correlated with RCP [47.4(3.4) balls · min (-1)], and C F values of the linear and nonlinear models were correlated with F V˙O (2PEAK) [56.7(3.4) balls · min (-1)]. However, there were no significant correlations between C F values and V˙O (2PEAK) [49.8(1.1)ml · kg (-1) · min (-1)]. The results were not modified by exhaustion criteria. The 2 linear and non-linear 2-parameter models can be used to estimate aerobic endurance in specific table tennis tests.
authors.affiliation: Federal University of Mato Grosso do Sul, Department of Physical Education, Campo Grande, Brazil. azagatto@yahoo.com.br
authors.forename: A
authors.initials: A
authors.lastname: Zagatto
authors.forename: M F
authors.initials: MF
authors.lastname: Miranda
authors.forename: C A
authors.initials: CA
authors.lastname: Gobatto
mesh_terms: D000293:Adolescent; D001784:Blood Gas Analysis; D015444:Exercise / Q000502:physiology; D006801:Humans; D016014:Linear Models; D008297:Male; D008962:Models, Theoretical; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology; D005082:Physical Exertion / Q000502:physiology; D011659:Pulmonary Gas Exchange; D015865:Racquet Sports / Q000502:physiology*; D013997:Time Factors; D055815:Young Adult