Abstract: Adaptations that occur to the various functional systems in the body come from the regularity of the sports training process based on the application of modern scientific foundations, and these adaptations have a great impact on developing the individual's athletic level in addition to their work in quickly returning the individual to his natural state to pre-effort, which is an indicator of the development of the condition. Training is incomplete and developed at the present time physiological equipment and it has become to measure most of the functional indicators in a direct way and with accurate results almost free from errors in the case of correct use of it and among these devices or supplies is a fitness device (fit mate pro) which was used for the first time in Iraq in 2009 Through it the training programs or tests are evaluated and the player's training status is evaluated, and this device measures a set of functional indicators, especially the maximum oxygen consumption (VO2 MAX), energy spent upon effort and metabolic rate (RMR) (energy expenditure during rest), Basketball is one of the interesting games, and the purpose of this game is to score the largest number of points in the opponent's basket and through the progressive development In various fields of life Including the sports field, especially the basketball game. The game of volleyball is closely related (with physiology), because of this science of importance in the process of development in the scientific and sports field, as well as the functional competence that the athlete possesses has a direct and major role affecting the level of his performance in the correct manner. Which results in a good technique and performance to win the match, in addition to that, the more the player’s functional condition improves, the better he can achieve with energy savings. The importance of the research lies in comparing some physiological variables between the basketball and volleyball teams at the University of Diyala. The research problem included that which is a study Comparison of these two variables for these two activities (basketball and volleyball) Or in different events through differences, in addition to their impact on the practice sporting events (and thus we reach the scientific foundations for selecting players who are qualified to represent the university in Iraqi universities forums) The research objectives included: Measuring the energy spent by the players of the university teams in basketball and volleyball, which is supposed Research There are statistically significant differences in the physiological variables between the players of the two university teams (the basketball team and the volleyball team). The researchers reached the following