Neuromuscular adaptations after an altitude training camp in elite judo athletes

Tomažin, Katja (avtor), Almeida, Filipa (avtor), Štirn, Igor (avtor), Padial, Paulino (avtor), Bonitch-Góngora, Juan (avtor), Morales-Artacho, Antonio J. (avtor), Strojnik, Vojko (avtor), Feriche, Belén (avtor)

The aim of this study was to investigate neuromuscular adaptations in elite judo athletes after three weeks of power-oriented strength training at terrestrial altitude (2320 m). Nineteen men were assigned to altitude training (AL) (22.1 ± 2.3 years) and sea level training (SL) (22.6 ± 4.1 years). Neuromuscular assessment consisted of: (1) maximal isometric knee extensor (KE) torque, (2) KE rate of torque development (RTD), (3) quadriceps activity and voluntary activation, (4) soleus Hreflex, (5) quadriceps single (T$_{TW}$) and double twitch torque (T$_{DB100}$) and contraction time (CT$_{TW}$). There were no significant differences between groups at baseline for any of the observed parameters. Significant differences were found between groups in terms of change in RTD (p = 0.04). Cohen’s d showed a positive significant effect (0.43) in the SL group and a negative significant effect (−0.58) in the AL group. The difference between groups in changes in CT$_{TW}$ as a function of altitude was on the edge of significance (p = 0.077). CT$_{TW}$ increased by 8.1 ± 9.0% in the AL group (p = 0.036) and remained statistically unchanged in the SL group. Only the AL group showed a relationship between changes in T$_{TW}$ and T$_{DB100}$ and changes in RTD at posttest (p = 0.022 and p = 0.016, respectively). Altitude induced differences in muscular adaptations likely due to greater peripheral fatigue.

• Jezik: Angleški jezik
• Ključne besede: sport, elite athlete, judo, strength training, twitch, H-reflex, voluntary activation
• 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: 2021
• Št. strani: 16 str.
• Številčenje: Vol. 18, iss. 13, art. 6777
• PID: 20.500.12556/RUL-135614
• UDK: 796.853.23
• ISSN pri članku: 1660-4601
• DOI: 10.3390/ijerph18136777
• COBISS.SI-ID: 68474883
• Datum objave v RUL: 22.03.2022

Gradivo je del revije

• Naslov: International journal of environmental research and public health
• Skrajšan naslov: Int. j. environ. res. public health
• Založnik: MDPI
• ISSN: 1660-4601
• COBISS.SI-ID: 1818965

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.
• Začetek licenciranja: 01.07.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: šport, vrhunski športniki, judo, trening moči, H-refleks, prostovoljno udejstvovanje, živčno-mišična adaptacija