Maximum velocity during loaded countermovement jumps obtained with an accelerometer, linear encoder and force platform: a comparison of technologies

Ferro Sánchez, Amelia and Floría, Pablo and Villacieros Rodríguez, Jorge and Muñoz López, Alejandro (2019). Maximum velocity during loaded countermovement jumps obtained with an accelerometer, linear encoder and force platform: a comparison of technologies. "Journal of Biomechanics", v. 95 ; pp. 109281-109284. ISSN 0021-9290. https://doi.org/10.1016/j.jbiomech.2019.07.025.

Description

Title: Maximum velocity during loaded countermovement jumps obtained with an accelerometer, linear encoder and force platform: a comparison of technologies
Author/s:
  • Ferro Sánchez, Amelia
  • Floría, Pablo
  • Villacieros Rodríguez, Jorge
  • Muñoz López, Alejandro
Item Type: Article
Título de Revista/Publicación: Journal of Biomechanics
Date: 11 October 2019
ISSN: 0021-9290
Volume: 95
Subjects:
Freetext Keywords: Jump; Kinematics; Performance; Technological tools
Faculty: Facultad de Ciencias de la Actividad Física y del Deporte (INEF) (UPM)
Department: Deportes
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The maximum velocity (Vmax) reached during countermovement jumps (CMJ) has been considered a performance indicator to evaluate vertical jump ability. The aim of this study was to compare Vmax during loaded CMJ (CMJloaded) using three different technologies to show a criterion for selecting the more appropriate depending on its use. Nine recreationally active men performed a CMJloaded test. Five jumps were made in each of 6 series with a 20- kg barbell + 0, + 5, + 10, + 15, + 20 and + 25 kg, with 2 seconds rest between the jumps and 5 minutes rest between the series to explore a wide range of speeds. Vmax was obtained from force platform, inertial device and linear encoder technologies. Bland-Altman plots and mean differences were used to compare devices. Reproducibility was tested using the intraclass correlation coefficient (ICC) for single measures and typical error (TE). All technologies showed high levels of reproducibility, ICC higher than 0.75 and TE lower than 10 %. There were non-significant differences in Vmax between each pair of technologies (linear encoder 2.11 ± 0.24 m·s-1, accelerometer 2.11 ± 0.26 m·s-1, force platform 2.12 ± 0.24 m·s-1) reporting a very low bias. However the limits of agreement between the different technologies evaluated were high (± 0.33 m·s-1). In conclusion, the accelerometer, linear encoder and force platform were suitably reliable to be used to measure Vmax during loaded vertical jumps but their values were not interchangeable.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainDEP2012-38785UnspecifiedUnspecifiedDesarrollo de un sistema integrado para el análisis biomecánico y evaluación del rendimiento en cond. Entrenamiento. Aplicación al baloncesto en silla de ruedas de alto nivel

More information

Item ID: 64190
DC Identifier: http://oa.upm.es/64190/
OAI Identifier: oai:oa.upm.es:64190
DOI: 10.1016/j.jbiomech.2019.07.025
Official URL: https://www.sciencedirect.com/journal/journal-of-biomechanics/vol/95/suppl/C#article-25
Deposited by: Memoria Investigacion
Deposited on: 16 Nov 2020 09:05
Last Modified: 16 Nov 2020 09:05
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