| Autor: |
Impellizzeri, Franco M., Rampinini, Ermanno, Sassi, Aldo, Mognoni, Piero, Marcora, Samuele |
| Předmět: |
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| Zdroj: |
Journal of Sports Sciences; Jan2005, Vol. 23 Issue 1, p41-47, 7p, 5 Charts |
| Abstrakt: |
The aim of this study was to examine the relationships between maximal and submaximal tests for aerobic fitness and performance in an off-road cross-country circuit race. Thirteen competitive off-road male cyclists participated in the study. Peak oxygen uptake ( &Vdoti; O 2peak ), peak power output, and lactate thresholds corresponding to 1 mmol · l -1 above baseline (lactate threshold) and to 4 mmol · l -1 (onset of blood lactate accumulation) were measured during an incremental cycling test. Race time and final ranking within the same group of cyclists were determined during a cross-country off-road competition. All correlations between the measured parameters of aerobic fitness and off-road cycling performance were significant, particularly between race time and physiological parameters scaled to body mass 0.79 ( r = -0.68 to - 0.94; P < 0.05) and between final ranking and physiological parameters expressed relative to body mass 0.79 ( r = -0.81 to - 0.96; P < 0.001). Moreover, there was a large difference (effect sizes = 1.12 - 1.70) in all measured parameters of aerobic fitness between the group of six cyclists with a race time above the median and the group of six cyclists with a race time below the median ( P < 0.05). In conclusion, the results of this study provide empirical support to the widespread use of these maximal ( &Vdoti; O 2peak , peak power output) and submaximal (lactate thresholds) parameters of aerobic fitness in the physiological assessments of off-road cyclists. Furthermore, our results suggest body size should be taken into account when evaluating such athletes. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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