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Hans-Peter Schmidtke 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1985,31(1):240-243
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Abstract Despite the popularity of open-wheel car racing, scientific literature about the physical characteristics of competitive race car drivers is scarce. The purpose of this study was to compare selected fitness parameters of experienced and junior open-wheel race car drivers. The experienced drivers consisted of five Formula One, two GP2 and two Formula 3 drivers, and the nine junior drivers drove in the Formula Master, Koenig, BMW and Renault series. The following fitness parameters were tested: multiple reactions, multiple anticipation, postural stability, isometric upper body strength, isometric leg extension strength, isometric grip strength, cyclic foot speed and jump height. The group differences were calculated using the Mann-Whitney U-test. Because of the multiple testing strategy used, the statistical significance was Bonferroni corrected and set at P < 0.004. Significant differences between the experienced and junior drivers were found only for the jump height parameter (P = 0.002). The experienced drivers tended to perform better in leg strength (P = 0.009), cyclic foot speed (P = 0.024) and grip strength (P = 0.058). None of the other variables differed between the groups. The results suggested that the experienced drivers were significantly more powerful than the junior drivers: they tended to be quicker and stronger (18% to 25%) but without statistical significance. The experienced drivers demonstrated excellent strength and power compared with other high-performance athletes. 相似文献
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Alessandra Minello Hans-Peter Blossfeld 《British Journal of Sociology of Education》2017,38(5):686-704
Empirical studies have repeatedly shown that in Germany educational success still strongly depends on the social origin of individuals. Using the National Educational Panel Study, we analyse the effects of fathers’ and mothers’ education levels on their sons’ and daughters’ educational attainments across three successive birth cohorts in West Germany. We calculate the predicted probabilities of reaching low, medium or high education levels on the basis of the level of education of the mothers and the fathers. Our results show: a persistence of the status maintenance model, with very few exceptions; a growth in the educational level of women via medium-level education connected to segregation in the labour market; and finally that the first transition of girls to medium-level education has been completed, leaving space for daughters to attempt to outnumber sons in tertiary education, mainly due to the pressure of mothers. 相似文献