Abstract
Average effort intensity of a player during the game corresponds to 72-78 % of his VO2max. Energy expenditure could be compared to 20 km running load.
Muscle glycogen content is significantly dicreased after the game, and even almost zero level of glycogen can occur. Nutritional strategy before the game can help to increase glykogen content above the initial resting level.
Data of VO2max and VO2max/kg (cardio-respiratory capacity) obtained during laboratory stress test o bicykle and/or treadmill ergometer indicate level of common condition of the player. During several years of testing the football team of Viktoria Plzeň these values proved to be on very satisfactory level, comparable to the similar data of world class football teams.
There are significant shifts in markers of microtraumatic injury after the game (e.g. increased CK plasmatic activity) and also significant changes in markers if immune status and inflammation occur. Maximal performance of the player depends on large number of independent factors, however, quality of training process seems to be the most important.