20.500.12556/RUL-147198 Individualni glukozni prag pri treniranih kolesarjih magistrsko delo Individual glucose treshold in trained cyclists Merjenje glukoze med obremenitvenimi testiranji je preprost in cenovno ugoden način merjenja fizioloških spremenljivk. Individualni glukozni prag (IGT) je najnižja vrednost glukoze med stopnjevanim obremenitvenim testom in sovpada z individualnim anaerobnim pragom. Namen raziskave je bil ugotoviti kinetiko glukoze med obremenitvenim testom na kolesu, možnost določitve IGT ter primerjava z drugimi laktatnimi in ventilatornimi spremenljivkami. Metode: V raziskavo je bilo vključenih 27 mladih kolesarjev (starost M = 17,7; SD = 1,0 let in V̇O2max M = 70,7; SD = 4,5 ml.kg.min-1), ki so opravili stopnjevan obremenitveni test z začetno obremenitvijo 100 W in povečanjem 20 W/min do odpovedi. Vsaki 2 minuti je bila opravljena meritev krvnega laktata in glukoze, spremljane so bile ventilatorne spremenljivke. Opravljena je bila analiza kinetike glukoze med testom, izračunan individualni glukozni prag (IGT) ter druge laktatne in ventilatorne spremenljivke. Opravljena je bila primerjava IGT z drugimi ventilatornimi in laktatnimi pragovi. Rezultati: Kinetika glukoze jasno kaže padanje v začetnih stopnjah s povečevanjem v zadnjih stopnjah. Glukoza je 5 min po testu še vedno značilno povišana navkljub aktivni regeneraciji pri obremenitvi 50 W. IGT je bil izračunan pri 305 (SD = 41) W. Relativna vrednost IGT je nastopila pri 75,2 % Wmax. IGT je značilno različen od VT in Rise 1 mmol, medtem ko sovpada z LT, OBLA, Dmax, RCP in RQ1. Korelacijska analiza je pokazala srednje pozitivne povezave med spremenljivkami in IGT (r = .43 - .68, p < .05). Zaključek: Raziskava je prva raziskava te vrste na tako dobro treniranem vzorcu in dopolnjuje obstoječo literaturo z vpogledom v primerjavo IGT z drugimi spremenljivkami. IGT je uporabna in cenovno dostopna spremenljivka, ki se lahko uporablja v kontekstu fizioloških testiranj. Potrebne so še dodatne raziskave za boljše razumevanje IGT ter aplikacijo v vrhunskem športu. Measuring glucose during exercise testing is a simple and cost-effective way to assess physiological variables. Individual glucose threshold (IGT) is the lowest glucose value during an incremental exercise test and corresponds to the individual anaerobic threshold. The purpose of this study was to determine the kinetics of glucose during a cycling incremental exercise test, assess the possibility of determining IGT, and compare it with other lactate and ventilatory variables. Methods: The study included 27 young cyclists (mean age = 17.7; SD = 1.0 years and V̇O2max mean = 70.7; SD = 4.5 ml.kg.min-1), who performed an incremental exercise test starting at 100 W with an increase of 20 W/min until exhaustion. Blood lactate and glucose measurements were taken every 2 minutes, and ventilatory variables were monitored. The glucose kinetics during the test were analyzed, and individual glucose threshold (IGT) and other lactate and ventilatory variables were calculated. IGT was compared with other ventilatory and lactate thresholds. Results: The kinetics of glucose clearly showed a decrease in the initial stages and an increase in the final stages of the test. Glucose levels remained significantly elevated 5 minutes after the test, even during active recovery at 50 W. IGT was calculated at 305 (SD = 41) W, with a relative value of 75.2% of Wmax. IGT significantly differed from VT and Rise 1 mmol, while it corresponded to LT, OBLA, Dmax, RCP, and RQ1. Correlation analysis showed moderate positive correlations between variables and IGT (r = .43 - .68, p < .05). Conclusion: This study is the first of its kind on such a well-trained sample and adds to the existing literature with unique insight into comparison of IGT with other variables. IGT is a useful and affordable variable that can be used in the context of physiological testing. Further research is needed to better understand IGT and its application in elite sports. obremenitveno testiranje glukoza glukozni prag kolesarstvo exercise testing blood glucose individual glucose threshold cycling true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-06-25 07:15:04 2023-06-25 07:15:28 2023-08-10 14:22:51 0000-00-00 00:00:00 2023 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 42246 160670723 20799.pdf 20799.pdf 1 E1546E76471FA4BE1AAA46C8C0045851 ba934e450ee3d9370eaafc20682c036de8037eee3ee89267e2a6af28bf8e5e0c eb4089bb-1316-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=170674 Fakulteta za šport 0 0 0