%0 Artículo %A Sánchez Ureña, Braulio; Programa Ciencias del Ejercicio y la Salud %I Universidad Nacional de Costa Rica %D 2011 %G Español %T Determination of maximal oxygen consumption of costa rican first division football players during 2008 preseason %U http://www.revistas.una.ac.cr/index.php/mhsalud/article/view/366 %U http://hdl.handle.net/11056/4158 %X The objective of this study was to assess the cardiorespiratory profile (VO2max) of Costa Rican first division football players during preseason and compare VO2max by players’ positions. Methodology: A total of 9 Costa Rican first division football teams were evaluated in this study for a total sample of 219 professional players ages 20-36 with an average age of 24.64 ± 4.35 years, average body weight of 73.34 kg ± 7.34, and a fat percentage of 9.78 % ± 3.64.  In order to evaluate the VO2max of players, the treadmill protocol was used as recommended by Wilmore and Costill (2007).  This was a maximal test.  Results: an average VO2max of 57.71 ml/kg/min ± 8.8 was found; however, no statistically significant differences were found     (p = .752) between positions.  Conclusion: there were no differences in VO2max by positions.