%0 Journal Article
%T The effects of bicycle seat tube angle on subsequent running. 10.5007/1980-0037.2011v13n6p436
%A Rodrigo Baltazar
%A Mariana Borges de Andrade
%A Fabrizio Caputo
%J Revista Brasileira de Cineantropometria e Desempenho Humano
%D 2011
%I Universidade Federal de Santa Catarina
%X The objective of this study was to investigate the effects of two different (73กใ and 80กใ) seat tube angles (STAs) on physiological and biomechanical variables during cycling and on subsequent running performance. Six male triathletes (24.1+7.8 year; 71.3+7.6 kg; 1.76+4.8 m) completed two 20-km cycling trials (at 73กใ or 80กใ) at self-selected intensity on their own bikes using a cycle simulator and immediately transitioned to a 3-km running trial on a track at maximum pace. The trials were performed randomly on different days. The self-select intensity adopted in the first 20-km cycling trial was also used in the second cycling trial. There were no significant differences between the 73กใ and 80กใ STAs during the cycling trials. The pace during the 2nd km of the running trial was significantly lower at 73กใ (3.92+0.45m/s) compared with 80o (3.99+0.44m/s); however, there was no significant difference (P = 0.065) between the STAs in terms of total mean pace (4.07+0.46m/s at 73o and 4.18+0.47m/s at 80o). The stride rate (88.2+0.12 stride/min) and total mean (87.6+0.12 stride/min) during the 3rd km of the running trial were significantly lower at 73กใ compared with 80o (91.2+0.12 stride/min and 90.0+0.08 stride/min, respectively). Therefore, the changes in the STAs did not affect significantly the physiological and biomechanical variables during cycling neither subsequent 3-km running performance. However, the differences found in the stride rate, running pace, and tendency of better running performance (P = 0.065) suggest a small but significant effect on the running trial performed after cycling using higher STA. These aspects may have a relevant influence on the final race classification.
%K Athletic performance
%K Bicycling
%K Energy metabolism
%K Human Engineering
%K Running. Desempenho
%U http://www.periodicos.ufsc.br/index.php/rbcdh/article/view/17753/19615