The Vital Capacity Test in Football Physical Education.

Football has become a sport that interest by all population in this world. To play or become a good football player, the person must master many skills and have a healthy physical and mental. Football players also must combine speed, strength, agility, power, and endurance as basic qualities before the individual skills inherent to the playing of soccer can be utilized and depend on the position such as defense, strikers, midfielder and goal keeper. The understanding of the physical and the mental demands of the sport will enable a more scientific approach to the training of soccer players by (Bell and Rhodes 1975; Caru et. al. 1970; Fardy 1969).
Football is one of the sports that need high intensity of workload or physical activity, for example the combination of walk and repeated sprints need sufficient recovery between activity. Stated by (Nicks et. al. 2006) and Romer et.al.
So the player must have strong muscles, high muscular endurance, have strong core and have high level of aerobic capacity because the football game are played for 90 minutes. So the training must contain high aerobic training to improve cardiovascular and pulmonary functions so the athlete can cope with the sport.
Physiological assessment of athletes can provide an opportunity to examine or test the adaptation to specific types of exercises and training. These adaptations can be valuable to the clinician, coaches and athletes themselves. For example, lab test that can be proceed to examine the adaptation to specific types of exercises and training. To test the adaptation to the lung we can use pulmonary functions test to examine the effectiveness of lung muscles functioning, to check the vital capacity and to estimate the lung volumes.
The function of the lung is to deliver O2 to gas exchanged surface and exhaust CO2 to atmosphere. To achieve this with brain functioning normally, breath