Publicação: Predictive validity of critical power for mountain bike cross-country race performance
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Editor
Edizioni Minerva Medica
Tipo
Artigo
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Resumo
BACKGROUND: Critical power (CP) is considered a variable for measuring and predicting aerobic performance. However, there is no evidence supporting the use of CP with mountain biking aerobic performance. The purpose of this study was to examine the correlation between CP and cross-country (XCO) race time. METHODS. Seventeen XCO riders (30.2 +/- 5.6 years, 67.9 +/- 6.3 kg, 174.8 +/- 5.5 cm, 7.0 +/- 2.3% body fat, 64.4 +/- 4.5 mL center dot kg(-1 center dot)min(-1) VO2max, 272.5 +/- 13.5 W estimated CP) classified as performance cohort level three (PL3 - trained) completed three separate testing sessions and a XCO race. In the first session, the participants performed a maximal incremental test for the determination of maximal oxygen uptake and peak power output (PPO). In the second and third sessions, the participants performed a time limit test for the determination of CP and in the fourth session, they performed a XCO race. RESULTS. Significant correlations were identified between CP relative to body mass (r=-0.64, 95% CI -0.85to -0.23, P<0.01) and PPO relative to body mass (r=-0.80, 95% CI -0.92 to -0.52, P<0.001) with race time. CONCLUSIONS. The findings of the study support the use of CP for assessing mountain biking racing performance. However, the association between XCO performance and PPO relative to body mass was greater than the association between XCO performance and CP. Therefore, the traditional progressive maximum test is sufficient to predict XCO performance.
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Palavras-chave
Exercise test, Athletic performance, Bicycling
Idioma
Inglês
Como citar
Gazzetta Medica Italiana Archivio Per Le Scienze Mediche. Turin: Edizioni Minerva Medica, v. 176, n. 1-2, p. 10-15, 2017.
