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Revista Brasileira de Medicina do Esporte
Print version ISSN 1517-8692
SOUZA, Kristopher Mendes de et al. Physiological and neuromuscular variables associated to aerobic performance in endurance runners: effects of the event distance. Rev Bras Med Esporte [online]. 2011, vol.17, n.1, pp. 40-44. ISSN 1517-8692. http://dx.doi.org/10.1590/S1517-86922011000100008.
The objective of this study was to analyze the validity of maximal oxygen uptake (VO2max), velocity corresponding to the maximal oxygen uptake (vVO2max), time to exhaustion in the vVO2max (Texh), anaerobic threshold (AT), running economy (RE), and explosive strength (ES) to predict performance in 1.500m, 5,000m, and 10,000m running events. Eleven moderately trained endurance runners (28.36 ± 6.47 years) participated in this study and performed: 10.000m, 5.000m, and 1.500m time trials on a 400m track; a maximal incremental load test to determine the VO2max, vVO2max, and AT; a submaximal and maximal constant load test to determine RE and Texh, respectively; and a vertical jump test to determine ES. The vVO2max alone accounted for 57% of variance in the 1.500m running performance. However, when the Texh, ES, and vVO2max were analyzed together, they were able to explain 88% of the performance. In the 5.000m running trial, Texh, vVO2max, and vAT responded for 88% of the performance (p<0.05). Differently, in the 10.000m time trial, the vAT was the only variable able to predict performance. In conclusion, the prediction of aerobic running performance based on VO2max, vVO2max, Texh, AT, RE, and ES is dependent on the running distance (1.500m, 5.000m, and 10.000m)
Keywords : prediction; time trial; running performance.