RT Journal Article
T1 Enhanced accuracy in jump power estimation using photoelectric cell system and GRS80 location-specific gravitational acceleration
A1 González Montesinos, José Luis
A1 González Montesinos, Fuensanta
A1 Fernández Santos, Jorge del Rosario
A1 Suárez LLorens, Alfonso
A1 Caraballo Vidal, Israel
A1 Gutiérrez Mulas, Paloma
A1 Gutiérrez Manzanedo, José Vicente
AB Power is essential in sports and is typically calculated using a standard gravity value of g = 9.81 m·s −2. However, this value varies according to altitude and geographical latitude. The aim of this study was to improve the accuracy of power calculations using a photoelectric cell system and the local g value. First, the uncertainty in jump power calculation induced by the direct measurements involved in its estimation was analyzed in this cross-sectional study. Subsequently, the power values obtained for ten volleyball players were calculated through repeated jump tests of 15, 30, and 60 s, using a kinematic system composed of a transmitting bar and a receiving bar with 96 infrared LEDs that detect flight and ground times for each jump. The local gravity values for 34 different locations—obtained through the Geodetic Reference System, taking into account the altitude of eachlocation—and the standard value of g = 9.81 m·s −2 were used for the power calculation. Significant differences were observed, with underestimation occurring at higher altitude locations and overestimation at lower altitudes. To conclude, the results indicated that the geographic location of the experiment should be considered, and the use of GRS80 local gravity values is recommended to improve the accuracy of jump power calculations.
PB MDPI
YR 2025
FD 2025
LK https://hdl.handle.net/20.500.14352/131132
UL https://hdl.handle.net/20.500.14352/131132
LA eng
NO González-Montesinos, J.L.; Montesinos, F.G.; Santos, J.R.F.; Llorens, A.S.; Caraballo, I.; Gutiérrez-Mulas, P.; Gutiérrez-Manzanedo, J.V. Enhanced Accuracy in Jump Power Estimation Using Photoelectric Cell System and GRS80 Location-Specific Gravitational Acceleration. Sensors 2025, 25, 5163. https://doi.org/10.3390/s25165163
DS Docta Complutense
RD 19 mar 2026