858 KB51 KB201020252024Kürkcü Akgönül, EsraÖzen, Gökmenletnik:15številka:2str. 149-170DOI:10.35469/ak.2024.472ISSN:2232-2620COBISSID_HOST:228836099URN:URN:NBN:SI:doc-28YVR9N2enZnanstveno-raziskovalno središče Koper, Annales ZRSAnnales kinesiologiae (Koper)Borilne veščineendurancekickboxingkikboksingmental fatiguemladi športnikmočpsihična utrujenoststrengthTelesna pripravljenostvzdržljivostyoung athleteThe acute effect of mental fatigue on strength endurance in young kickboxers|This study was conducted to examine the acute effects of Mental Fatigue (MF) on strength endurance in well-trained young kickboxers. A total of 17 female/male athletes (age: 15.76±1.44 years; height: 167.06±8.63 cm; body weight: 62.03±10.63 kg) par-ticipated. The Repeated Measurement Design was used. Accordingly, the participants had 3 sessions; pre-preparation, control, and mental fatigue. In the pre-preparation session, demographic information and one repetition maximum (1RM) for bench press (BP) and squat (SQ) exercises were taken. The athletes’ strength endurance was perfor-med until 60% of 1RM exhaustion; the number of repetitions (NOR) and movement time (MT) were recorded. In the MF session, the participants were subjected to a 30-minute Stroop task before the strength test. In order to determine the differences in NOR and MT between the sessions and the differences in measurements according to gender, the Paired sample t-test was used. The presence of MF significantly reduced SQ-NOR by 34.5%, SQ-MT by 36.88%, BP-NOR by 22.71%, and BP-MT by 28.27% (p<0.05). Based on gender, MF had a significant negative effect on SQ-NOR, SQ-MT, and BP-MT in women and men and on BP-NOR only in women athletes (p<0.05). As a result of the research, 30-min MF application negatively affects the lower and upper extremity strength endurance performance in young kickboxers. In this respect, young kickboxers should avoid activities that will cause mental fatigue such as using digital screens or solving questions or puzzles for social media purposes for 30 min or more before train-ing and competition, which will prevent possible muscular performance lossŠtudija je bila izvedena zaradi proučitve akutnih učinkov mentalne utrujenosti (MF) na vzdržljivost moči pri dobro treniranih mladih kikbokserjih. Sodelovalo je 17 šport-nic in športnikov (starost: 15,76 ± 1,44 leta; višina: 167,06 ± 8,63 cm; telesna teža: 62,03 ± 10,63 kg). Uporabljena je bila metoda ponovljenih meritev. V skladu s tem so udeleženci opravili tri treninge: predpripravo, kontrolo in psihično utrujenost. V pre-dpripravi so bili zbrani demografski podatki in največja mogoča hitrost ene ponovitve (1RM) pri vajah z dvigom na klop (BP) in sklece (SQ). Športniki so vzdržljivost moči izvajali do 60-odstotne izčrpanosti 1RM, beležili so število ponovitev (NOR) in čas gi-banja (MT). V seji MF so udeleženci pred testom moči opravili 30-minutno Stroopovo nalogo. Za ugotavljanje razlik v NOR in MT med sejami in razlik v meritvah glede na spol je bil uporabljen t-test za parne vzorce. Uporaba MF je pomembno zmanjšala SQ-NOR za 34,5 %, SQ-MT za 36,88 %, BP-NOR za 22,71 % in BP-MT za 28,27 % (p<0,05). Glede na spol je MF pomembno negativno vplivala na SQ-NOR, SQ-MT in BP-MT pri ženskah in moških in na BP-NOR samo pri športnicah (p<0,05). Rezultat raziskave je, da 30-minutna uporaba MF negativno vpliva na vzdržljivostno zmoglji-vost moči spodnjih in zgornjih okončin pri mladih kikbokserjih. V zvezi s tem se morajo mladi kikbokserji 30 minut ali več pred treningom in tekmovanjem izogibati dejavnos-tim, ki povzročajo duševno utrujenost, kot so uporaba digitalnih zaslonov ali reševanje vprašanj ali ugank v okviru družbenih omrežij, kar prepreči morebitno izgubo mišične zmogljivostiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZnanstveno-raziskovalno središče Koper