20.500.12556/RUL-135218 Muscle activation sequence in flywheel squats Background: Muscle coordination is important for rational and effective planning of therapeutic and exercise interventions using equipment that mimics functional movements. Our study was the first to assess muscle coordination during flywheel (FW) squats. Methods: Time-ofpeak electromyographic activation order was assessed separately for 8, 4, and 3 leg muscles under four FW loads. A sequential rank agreement permutations tests (SRA) were conducted to assess activation order and Kendall’s tau was used to assess the concordance of activation order across subjects, loads and expected order of activation. Results: SRA revealed a latent muscle activation order at loads 0.05, 0.075, and 0.1, but not at 0.025 kg·m$^2$. Kendall’s tau showed moderate-to-strong concordance between the expected (proximal-to-distal) and the observed muscle activation order only at a load 0.025 kg·m$^2$, regardless of the number of muscles analyzed. Muscle activation order was highly concordant between loads 0.05, 0.075, and 0.1 kg·m$^2$. Conclusions: The results show a specific role of each muscle during the FW squat that is load-dependent. While the lowest load follows the proximal-to-distal principle of muscle activation, higher loads lead to a reorganization of the underlying muscle coordination mechanisms. They require a specific and stable muscle coordination pattern that is not proximal-to-distal. isoinertial training EMG eccentric exercise overload muscle coordination isoinercijska vadba EMG ekscentrična vadba preobremenitev mišična koordinacija true false true Angleški jezik Slovenski jezik Članek v reviji 2022-03-01 12:21:15 2022-03-01 12:21:17 2022-09-14 04:12:14 0000-00-00 00:00:00 2021 0 0 12 str. iss. 6, art. 3168 Vol. 18 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 796/799 1660-4601 10.3390/ijerph18063168 56468227 RAZ_Spudic_Darjan_2021.pdf RAZ_Spudic_Darjan_2021.pdf 1 1999F3D913F64E18CA65CB74355AF6DB 90207d7854ccc39fcc991814e84e48f4d2726b98f9e7ad5703b3ace0e085bed3 bdee9d9b-9951-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154146 https://www.mdpi.com/1660-4601/18/6/3168 1 727162c1-9951-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=154145 Fakulteta za šport 0 0 0