ANALYSIS OF MAXIMUM HEART RATE VALUES WITH DIFFERENT TEST PROTOCOLS IN ELITE SOCCER PLAYERS

This study aims to analyze maximal heart rate (HR MAX) values of young soccer players in three different maximal running tests. 13 voluntary male soccer players, (Age: 16,61±0,50 years, Height: 176,95±5,30 cm, Body Weight: 66,36±5,04 kg) in a soccer team competing in U17 category participated in this study. Yo-Yo Intermittent Recovery Test-Level 1 (YYIRTL1), Circular Modified Shuttle Run Test (CMSRT) and 20-m Shuttle Run Test (20-MSRT) were randomly performed by the athletes every three days. At the beginning of each test, blood concentrations of the rested blood lactic acid were determined by taking blood from the ears of the volunteers. Rested heart rates of the volunteers were recorded for 5 minutes before each test. The tests were maintained until the athletes were exhausted and, heart rates were recorded with the help of heart rate monitors until the athletes left the test. Lactic acid concentrations were determined by taking blood from their ears again within 1 minute after athletes left the test. There is no statistically significant difference between CMSRT, YYIRTL1 and 20-MSRT in terms of exercise end maximal heart rate HR MAX and blood lactic acid (BLA) values. In conclusion, the results of the study puts forward that these three tests can be used interchangeably in terms of determination of maximum heart rate and in this context in guiding the exercises