20.500.12556/RUL-133652 Isometric strength in volleyball players of different age a multidimensional model Physical abilities modelling has a profound connection with long-term athlete development and talent identification. There is not enough data to support evidence about age-related changes in volleyball players’ isometric strength. This study aimed to define the age-related model of volleyball players multidimensional muscles’ contractile characteristics. The participants were divided according to gender (male n = 112, female n = 371) and according to age into four groups: under 15 (U15), under 17 (U17), under 19 (U19), and under 21 (U21) years old. Participants performed three isometric strength tests: handgrip, lumbar extensors, and ankle extensors. Maximal force and rate of force development results from all three tests were transformed into a single Score value as a representation of contractile potentials using principal component analysis. The main findings were that Score values of both genders showed significant differences between age groups (male: F = 53.17, p < 0.001; Female: F = 41.61, p < 0.001). Trends of those yearly changes were slightly more balanced for female subjects (3.9%) compared to male subjects (6.3%). These findings could help in strength training adjustments when working with volleyball players of a certain age, and enable coaches to detect ones that stand out positively, considering them as strong in regard to their age. isometric strength abilities profile muscle forces prediction training rehabilitation true false true Angleški jezik Ni določen Članek v reviji 2021-12-07 14:21:31 2021-12-07 14:21:38 2022-09-13 03:51:51 0000-00-00 00:00:00 2020 0 0 12 str. iss. 12, art. 4107 Vol. 10 Jun. 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2076-3417 10.3390/app10124107 107252995 applsci-10-04107.pdf applsci-10-04107.pdf 1 C1C13507648118A14F42A47C1B49D2D7 8e325960bfb2defb04946f42dc425b72a6466789e1d37d9a4087a9b70292aa01 f91e8e11-5760-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151899 https://www.mdpi.com/2076-3417/10/12/4107 0 f34f95b0-5760-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=151898 Fakulteta za šport 0 0 0