Changes in Blood Lactates during Ergometric Testing on Professional Football Players during One Half Season Competitions

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Dragica Bliznakovska-Stanchev


BACKGROUND: Determination of concentration of blood lactates on different degrees of ergometric loading in laboratory is of interest of monitoring of lactate tolerance and glycolysis adaptation as an important energy source during the football game. Blood lactates are often used as indicator of anaerobic energy production in football. In fact, they show the balance between lactate release and release, and as such to be a considered as an indicator several facts should be taken into account.

AIM: The aim of this study is to determine the impact of individual phases of training process in the football on the blood lactates in professional football players, and to determine the differences in the concentration of blood lactates between individual phases of the training process.

MATERIALS AND METHODS: This study was conducted at the PZU Kinetikus in Skopje during 2014 year. The study covers a sample of 36 respondents on age between 18 and 32 years, defined as professional football players from football club that is part of national premier football league. Concentration of blood lactates in mmol/l was determined, by using blood analyzer "ACCUSPORT", during the stationary phase, after completion of each level of the maximum load ergometric test and the recovery phase (3 minutes after test completion). – Lactates in stationary, lactates after 3 minutes, lactates after 6 minutes, lactates after 9 minutes, lactates after 12 minutes, lactates after 15 minutes, lactates after maximum and lactates after recovery.

RESULTS: The blood lactate at maximum progressive growing ergometric test showed significant changes, at the fifth level of load (at the end of 15 minutes), at maximum load and at the stage of recovery, three minutes after the test.

CONCLUSIONS: The significant reduction in blood lactate on the fifth level of the load, which is actually a level that is achieved AnT of 4 mmol/l, in the preparatory phase, may indicate preliminary signs of adaptation of glycolysis and lactate tolerance.


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Bliznakovska-Stanchev D. Changes in Blood Lactates during Ergometric Testing on Professional Football Players during One Half Season Competitions. Maced Med Electron J [Internet]. 2015 Nov. 29 [cited 2024 Jun. 25];1(1):1-8. Available from:
Basic Medicine


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