RT Journal Article
T1 Maximal velocity as a discriminating factor in the performance of loaded squat jumps
A1 Jimenez-Reyes, P.
A1 Pareja Blanco, Fernando
A1 Rodríguez Rosell, David
A1 Marques, M. C.
A1 González Badillo, Juan José
K1 Force
K1 Rate of force development
K1 Power
K1 Velocity
AB PURPOSE: To determine what variables determine the differences in performance on 2 tests of squat jump (SJ) performed under light load in highly trained athletes using maximal velocity (Vmax) or flight time (FT) as the discriminating factor of SJ performance. METHODS: Thirty-two participants performed 2 maximal weighted SJs using a force platform synchronized with a linear transducer. Mean force (Fmean), mean and maximal power (Pmean, Pmax), peak force (PF), maximal rate of force development (RFDmax), and time required to attain PF (TPF) and RFDmax (TRFDmax) were analyzed. SJs were divided into 2 segments: from the initiation of force application to PF1 and from the moment after PF1 to Vmax. RESULTS: Traditional significance statistics revealed significant differences in the same variables between best and worst SJs using both FT and Vmax. However, to use an approach based on the magnitude of the effect, the best SJ showed greater Pmax (83/17/0%), Pmean (85/15/0%), Fmean (71/29/0%), RFDmax1 (73/27/0%), and PF1 (53/47/0%) and lower TPF2 (0/61/39%) than the worst SJ when Vmax was used to discriminate SJ performance. However, using FT to differentiate SJ performance, no difference was observed between best and worst. CONCLUSIONS: Although jump height assessed through FT is a valid measure, these results suggest that Vmax is a more sensitive variable than FT to detect differences in loaded-SJ performance.
PB Human Kinetics Journals
YR 2016
FD 2016-03
LK https://hdl.handle.net/10433/22572
UL https://hdl.handle.net/10433/22572
LA en
NO Int J Sports Physiol Perform, 11(2), 227-234
NO Departamento de Deporte e informática. Universidad Pablo de Olavide.
NO Centro de Investigación en Rendimiento Físico y Deportivo
DS RIO
RD May 2, 2026