20.500.12556/RUP-22950 Lower-limb damping characteristics during various repetitive jumping forms reliability and sensitivity analysis An essential aspect of jumping performance is the ability to control impact forces. One of the key measures of this ability is the damping ratio, a dimensionless parameter that quantifies the rate at which oscillations decay following a disturbance. This study aims to assess the intra-session and inter-session reliability of damping ratios at different lower-limb anatomical landmarks and evaluate their sensitivity in detecting differences between various repetitive jumping forms, with an emphasis on establishing a specific methodological approach. Twenty-three physically active male and female students performed maximal countermovement jumps (CMJs) and bilateral (BL) and unilateral (UL) hopping (HOP). Ten wireless inertial measurement units recorded inertial data of five bilateral lower-limb anatomical landmarks. Results showed that the damping ratios during CMJ and HOPUL demonstrated good reliability, whereas in HOPBL were moderately reliable. The damping ratios of nearly all the anatomical landmarks differed between the jumping forms. CMJ had the highest values, HOPBL the lowest, and HOPUL values in between, likely due to variations in joint stiffness and amplitude displacement, as well as stretch‒shortening cycle reliance. Methodologically, using 20 repetitions in an intra-session trial and averaging left and right sides for inter-session reliability and inter-jump sensitivity, damping ratios are acceptably reliable and sufficiently sensitive for biomechanical analysis of different repetitive jumping forms. This metric could potentially be a valuable tool in developing theoretical nonlinear multibody mass‒spring‒damper models and could enhance biomechanical analysis with practical applications in sports training and rehabilitation. stretch–shortening cycle stiffness impact absorption oscillation intraclass correlation coefficient ekscentrično-koncentrična kontrakcija togost blaženje udarca oscilacija intraklasni korelacijski koeficient true false true Angleški jezik Slovenski jezik Članek v reviji 2026-04-13 12:01:17 2026-04-13 12:01:18 2026-04-14 03:06:01 0000-00-00 00:00:00 2026 0 0 str. 1-8 [article no.] 103141 Vol. 88 Jun. 2026 0000-00-00 Zaloznikova NiDoloceno NiDoloceno 0000-00-00 0000-00-00 2026-03-09 796 1050-6411 10.1016/j.jelekin.2026.103141 271043075 RAZ_Kapeleti_Marko_2026.pdf RAZ_Kapeleti_Marko_2026.pdf 1 FD8C17EC75BA6A4CC0054BAA7D78F93B a9313ac8c595958a9bbdc87274db13c27df81fc40a3dc3c147861ec14a125f49 d0e83d3b-371f-11f1-9e8d-005056ac49c0 https://repozitorij.upr.si/Dokument.php?lang=slv&id=33526 https://www.sciencedirect.com/science/article/pii/S1050641126000374?via%3Dihub 1 aa0436e8-371f-11f1-9e8d-005056ac49c0 https://repozitorij.upr.si/Dokument.php?lang=slv&id=33524 https://doi.org/10.1016/j.jelekin.2026.103141 1 aaf1985c-371f-11f1-9e8d-005056ac49c0 https://repozitorij.upr.si/Dokument.php?lang=slv&id=33525 Fakulteta za vede o zdravju 0 0 0