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Mardin Artuklu University, School of Physical Education and Sports, Mardin, Turkiye
Abstract
High lactic acid levels in high-configuration exercises can lead to a decrease in the performance of athletes. The aim of this study is to examine the changes in the characteristics of lactic acid (LA), dominant hand grip strength (DHGS), 20 m sprint and vertical jump (VJ) during the a match. In the study, blood lactate, dominant hand power, vertical power and 20 m sprint values were determined from the subjects, which were taken three times in total, at the end of the warm-up, before the start of the match, at the end of the first half and end of the match. 22 male handball players aged 12-14, playing in the U16 Handball League in 2022-2023, voluntarily participated in this research. The mean age of the subjects was 14,09±0,86 years, and the mean age of sports was 4,04±0,84 years. One-Way ANOVA was performed to analyze the difference. In our study, when the analysis results of lactic acid measurement and DHGS measurements are examined, it is seen that there is a statistically significant difference between pre-competition measurement (PrCM) and half-time measurement (HTM), PrCM and post-competition measurement (PoCM), HTM and PrCM (P <0.05). In addition, when the VJ measurement analysis results are examined, there is a statistically significant difference between PrCM and PoCM, HTM and PoCM results, and between PrCM and HTM, PrCM and PoCM results in the 20 m sprint test (P<0.05). There is an increase in the level of lactic acid in adolescent handball players during the competition, which negatively affects the performance of the athletes.
Turkmen, M. (2023). Investigation of changes in blood lactate and some performance characteristics of adolescent male handball players during competition. Journal of ROL Sport Sciences, 4(3), 886–896. https://doi.org/10.5281/zenodo.8352943
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