Anabolic/catabolic hormone imbalance but still jumping further? : negative association of free testosterone with jumping performance in elite handball players following a preparatory period

Drole, Kristina (avtor), Pori, Primož (avtor), Jerin, Aleš (avtor), Kren, Aljaž (avtor), Paravlić, Armin (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: sport, handball, athlete, biomarkers, free testosterone to cortisol ratio, single leg hop test
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FŠ - Fakulteta za šport
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 938–944
• Številčenje: Vol. 95, no. 4
• PID: 20.500.12556/RUL-165197
• UDK: 796.322
• ISSN pri članku: 2168-3824
• DOI: 10.1080/02701367.2024.2353715
• COBISS.SI-ID: 200316419
• Datum objave v RUL: 26.11.2024

Gradivo je del revije

• Naslov: Research quarterly for exercise and sport
• Skrajšan naslov: Res. q. exerc. sport
• Založnik: Taylor & Francis, Society of Health and Physical Educators
• ISSN: 2168-3824
• COBISS.SI-ID: 521032729

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: šport, rokomet, športniki, biomarkerji, prosto razmerje med testosteronom in kortizolom, test skoka z eno nogo

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Program financ.: Young researchers
• Številka projekta: 393/2020

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P5-0147
• Naslov: Kineziologija monostrukturnih, polistrukturnih in konvencionalnih športov