20.500.12556/RUL-165197 Anabolic/catabolic hormone imbalance but still jumping further? negative association of free testosterone with jumping performance in elite handball players following a preparatory period Purpose: The present study investigated the effects of a 10-week preparatory training period on biomarkers and jumping performance and associations of changes in biomarkers, load, and jumping performance from the beginning (PRE) to the end of the preparatory period (POST) in elite handball players. Methods: Seventeen elite handball players competing in the first Slovenian men’s League were recruited. Training, competition and academic loads were reported weekly, while biomarkers and jumping performance were assessed at PRE and POST. Results: At POST, decreased levels of free testosterone (large effect size [ES] = -1.69, p < .001) and free testosterone to cortisol ratio [FTCR] (large ES = −.95, p = .004) were observed; whereas, better performance on the single leg lateral hop test [SLLH] (large ES = .85, p = .007) and single leg triple hop test [SLTH] (large ES = 1.05, p = .002) were observed compared to PRE. Furthermore, changes in FTCR correlated with changes in cortisol (high r = -.751, p = .001), SLLH (moderate r = -.603, p = .022), and SLTH (moderate r = -.643, p = .013), while changes in free testosterone correlated with SLTH (moderate r = -.645, p = .013). Conclusions: High intensity trainings with a saturated competition schedule can result in disturbed anabolic/catabolic hormone ratio observed through FTCR decrease, which could indicate either an optimal state or early exhaustiveness. It seems that SLLH and SLTH are more sensitive to changes in biomarkers than a single leg hop test. Sport professionals may use the results for individualized monitoring of an athlete’s health and performance, specifically, as an aid for adjusting training loads accordingly to prevent performance declines and potential injury/illness events. sport handball athlete biomarkers free testosterone to cortisol ratio single leg hop test šport rokomet športniki biomarkerji prosto razmerje med testosteronom in kortizolom test skoka z eno nogo true false true Angleški jezik Slovenski jezik Članek v reviji 2024-11-26 15:19:55 2024-11-26 15:19:56 2024-11-27 03:50:49 0000-00-00 00:00:00 2024 0 0 Str. 938–944 no. 4 Vol. 95 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 796.322 2168-3824 10.1080/02701367.2024.2353715 200316419 Anabolic_Catabolic_Hormone_Imbalance_but_Still_Jumping_Further__Negative_Association_of_Free_Testosterone_With_Jumping_Performance_in_Elite_Handbal.pdf Anabolic_Catabolic_Hormone_Imbalance_but_Still_Jumping_Further__Negative_Association_of_Free_Testosterone_With_Jumping_Performance_in_Elite_Handbal.pdf 1 FDBC5B5156FA7578742D391E11B1C7C2 14a33c77f096004a70111c7d90f5031acef036ad5844f9427780c57b4cd519e6 5ee36db0-ac01-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=196220 https://www.tandfonline.com/doi/full/10.1080/02701367.2024.2353715 1 1a4d0f9c-ac01-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=196219 Fakulteta za šport 0 0 0