International Journal of Sports Physiology and Performance
Medical Subject Headings
Adult; Athletes; Athletic Performance; Bicycling; Humans; Male; Reproducibility of Results; Sitting Position; Standing Position; Wind
Centre for Exercise and Sports Science Research / School of Medical and Health Sciences
PURPOSE: To assess the influence of seated, standing, and forward-standing cycling sprint positions on aerodynamic drag (CdA) and the reproducibility of a field test of CdA calculated in these different positions.
METHODS: A total of 11 recreational male road cyclists rode 250 m in 2 directions at around 25, 32, and 40 km·h
RESULTS: A main effect of position showed that the average CdA of the 2 d was lower for the forward-standing position (0.295 [0.059]) compared with both the seated (0.363 [0.071], P = .018) and standing positions (0.372 [0.077], P = .037). Seated and standing positions did not differ from each other. Although no significant difference was observed in CdA between the 2 test days, a poor between-days reliability was observed.
CONCLUSION: A novel forward-standing cycling sprint position resulted in 23% and 26% reductions in CdA compared with a seated and standing position, respectively. This decrease in CdA could potentially result in an important increase in cycling sprint velocity of 3.9-4.9 km·h