Effect of trainings of football and handball players during the period of preparation on vo2max, anaerobic threshold and isocapnic buffering phase parameters

The object of this study is to evaluate the effect of trainings of football and handball players during the period of preparation on the maximum oxygen uptake, anaerobic threshold and values of isocapnic buffering phase, and by comparing them to each other, to determine whether or not there is a difference between branches. A total of 20 volunteer male players aged between 15 and 17 were chosen, with 10 of them being football players, and 10 being handball players. An exercise protocol, the intensity of which is gradually increased, was applied in order to detect the VO2max, anaerobic threshold and values of isocapnic buffering phase for the players. Data presented in the study were provided as a mean±standard deviation. The convenience of data with the normal distribution was evaluated by Shapiro Wilk test. A dependent group t test was applied for the pre-test and post-test results of the players. Student t-test for independent groups was used to compare the values of handball and football players. The values that is equal to and below p<0.05 were accepted as statistically significant. All the statistical calculations were performed using SPSS 17.0 package program for Windows. The linear regression analyses were carried out for the determination of anaerobic threshold and ventilator threshold of the players using SigmaPlot program (SigmaPlot 12.0, Systat Software Inc., Chicago, USA). The age values of the players who participated in the study were 15,60±0,52 years and 15,90±0,32 years, respectively; the mean height values were 178,00±3,68 cm and 179,10±5,86 cm; and the mean sport ages were 5,10±1,37 years and 5,10±1,79 years. When the results of the study are reviewed, it is seen that there is no statistically significant difference (p>0,05) between VO2max, anaerobic threshold and isocapnic buffering phase values of the handball players, whereas a significant difference (p<0,05) is present for the parameters, VO2max(lt/dk) and Ventilatory Threshold VO2 (ml/dk), of the football players, and there is no significant difference (p>0,05) for the other parameters. When the pre-test and post-test results for the football and handball players are compared, it is seen that there is no statistically significant difference between them. In the study, it is thought that the trainings conducted during the preseason preparation period are not sufficiently high to increase the aerobic endurance as there is no positively significant difference according to the cardiopulmonary exercise test of the handball and football players. In addition, it is thought that as there is no significant difference between the branches, the aerobic capacities and requirements vary in terms of different aspects together with difference being present between the game rules, playing field and technical situations between the branches. It can be said that the needs of the players may coincide at a certain point in terms of the energy requirement, although there are some differences between the branches in team sports, such as field criteria, number of players and technical differences. Given the number of trainings of the team players and the number of competition during the season, the opinion that the players should be at the highest level in terms of both anaerobic capacity and aerobic capacity, gains importance. Key Words: Football Player, Handball Player, Maximum Oxygen Uptake, Anaerobic Threshold, Isocapnic Buffering Phase