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The purpose of this study was to evaluate the predictive power of physiological tests in categorizing competitive alpine skiers. Sixty-one subjects (30 female and 31 male) were classified into three levels: international, national, and regional on the basis of past competition results. Hydrostatic weighing, maximal cycling, Wingate, 60-s repeated jump, and vertical jump tests were used to assess body composition, aerobic and anaerobic power, respectively. MANOVA revealed a significant group by gender interaction (Hotellings T, p less than .001), and main effects of gender and group (p less than .001). Discriminant analyses performed separately for male and female groups determined which variables were responsible for differences and resulted in selection of the following variables for classification of the men: average work from the repeated jump, absolute power for the vertical jump, and Wingate endurance. For the women, average work from the repeated jump, absolute and relative vertical jump power, absolute maximum Wingate power, and relative repeated jump power were most important. Fat-free mass was a powerful predictor for both sexes because of its strong relationship (r greater than 0.85) with power results. Aerobic power was not useful in group classification. In conclusion, physiological tests of anaerobic power and fat-free mass were the best predictors of group membership.
White et al. (Thu,) studied this question.