CC BY 4.0Andrades-RamírezO Ulloa-DíazD CastilloBA Arroyo-JofréP Castillo-ParedesA Chirosa-RíosALFARO CASTILLO BRYAN SEBASTIAN2025-06-052025-06-052024https://hdl.handle.net/20.500.12740/22611The purpose of the study was to analyze the test-retest reliability of an isometric and isometric/vibratory muscular strength protocol in the bilateral seated bench press (BSBP), bilateral seated rowing (BSR), unilateral seated right knee extension (USKER), and left knee extension (USKEL) tests controlled using functional electromechanical dynamometry (FEMD) in healthy young adults. A repeated measures design was used to determine the reliability of a muscular strength protocol in isometric and isometric vibration modes with FEMD. No significant differences were found in test-retest analysis (p > 0.05; ES < 0.20); and high reliability (CV = 4.65-5.02%; ICC = 0.99-0.98) was found for BSBP measures, and acceptable reliability (CV = 3.71-9.61%; ICC = 0.98-0.95) was found for BSR, USKER, and USKEL. Furthermore, the coefficients between the two measures were strong (r = 0.963-0.839) and highly significant (p = 0.001) for maximal strength in the isometric and maximal isometric/vibratory assessment of muscle strength in all muscle strength tests. This study demonstrates that isometric and maximal isometric/vibratory strength in the BSBP, BSR, USKER, and USKEL tests can be measured with high reliability and reproducibility using the FEMD. C1 [Andrades-Ramirez, Oscar] Univ las Americas, Escuela Ciencias Act Fis, Fac Salud & Ciencias Sociales, Concepcion 4030000, Chile. [Ulloa-Diaz, David] Univ Catolica Santisima Concepcion, Dept Sports Sci & Phys Conditioning, Concepcion 4030000, Chile. [Alfaro Castillo, Bryan] Univ Atacama, Fac Educ, Copiapo 1531772, Chile. [Arroyo-Jofre, Patricio] Univ San Sebastian, Fac Educ, Santiago 8420524, Chile. [Castillo-Paredes, Antonio] Univ las Americas, Escuela Pedag Educ Fis, Fac Educ, Grp AFySE,Invest Actividad Fis & Salud Escolar, Santiago 8370040, Chile. [Chirosa-Rios, Luis] Univ Granada, Fac Sport Sci, Dept Phys Educ & Sport, Granada 18011, Spain. C3 Universidad de Las Americas - Chile; Universidad Catolica de la Santisima Concepcion; Universidad de Atacama; Universidad San Sebastian; Universidad de Las Americas - Chile; University of Granadainfo:eu-repo/semantics/openAccessmuscular strengthreliabilitydynamometerisokineticSport SciencesArticulo de revista10.3390/sports12070175