Titre:	Evidence of validity and reliability of Jumpo 2 and MyJump 2 for estimating vertical jump variables
Auteur(s):	Vieira, Amilton Ribeiro, Gabriela Lima Macedo, Victor Oliveira Corrieri de Rocha Júnior, Valdinar de Araújo Baptista, Roberto de Souza Gonçalves, Carlos Wellington Passos Cunha, Rafael Rodrigues da Tufano, James
metadata.dc.identifier.orcid:	https://orcid.org/0000-0002-6027-4367 https://orcid.org/0000-0001-9116-6492 https://orcid.org/0000-0001-6973-6006 https://orcid.org/0000-0002-0228-6669 https://orcid.org/0000-0002-6481-0446 https://orcid.org/0000-0002-1865-2790 https://orcid.org/0000-0001-8325-0344
metadata.dc.contributor.affiliation:	Strength and Conditioning Laboratory, Faculty of Physical Education, Universidade de Brasília, Brasília, Distrito Federal, Brazil Strength and Conditioning Laboratory, Faculty of Physical Education, Universidade de Brasília, Brasília, Distrito Federal, Brazil Strength and Conditioning Laboratory, Faculty of Physical Education, Universidade de Brasília, Brasília, Distrito Federal, Brazil Strength and Conditioning Laboratory, Faculty of Physical Education, Universidade de Brasília, Brasília, Distrito Federal, Brazil Automation and Robotics Laboratory, Faculty of Technology, Universidade de Brasília, Brasília, Distrito Federal, Brazil Strength and Conditioning Laboratory, Faculty of Physical Education, Universidade de Brasília, Brasília, Distrito Federal, Brazil Strength and Conditioning Laboratory, Faculty of Physical Education, Universidade de Brasília, Brasília, Distrito Federal, Brazil Faculty of Physical Education and Sport, Charles University Prague, Prague, Czech Republic
Assunto::	Saltos com contramovimento Saltos verticais Força Velocidade Medicina esportiva Biomecânica
Date de publication:	25-jan-2023
Editeur:	PeerJ
Référence bibliographique:	VIEIRA, Amilton et al. Evidence of validity and reliability of Jumpo 2 and MyJump 2 for estimating vertical jump variables. PeerJ Life & Enviroment, Sports Medicine and Rehabilitation, v. 11, e. e14558, 2023. DOI: doi.org/10.7717/peerj.14558. Disponível em: https://peerj.com/articles/14558/. Acesso em: 04 jun. 2025.
Abstract:	Background. We investigated the concurrent validity and test-retest reliability of the Jumpo 2 and MyJump 2 apps for estimating jump height, and the mean values of force, velocity, and power produced during countermovement (CMJ) and squat jumps (SJ). Methods. Physically active university aged men (n = 10, 20 ± 3 years, 176 ± 6 cm, 68 ± 9 kg) jumped on a force plate (i.e., criterion) while being recorded by a smartphone slow-motion camera. The videos were analyzed using Jumpo 2 and MyJump 2 using a Samsung Galaxy S7 powered by the Android system. Validity and reliability were determined by regression analysis, typical error of estimates and measurements, and intraclass correlation coefficients. Results. Both apps provided a reliable estimate of jump height and the mean values of force, velocity, and power. Furthermore, estimates of jump height for CMJ and SJ and the mean force of the CMJ were valid. However, the apps presented impractical or poor validity correlations for velocity and power. Compared with criterion, the apps underestimated the velocity of the CMJ. Conclusions. Therefore, Jumpo 2 and MyJump 2 both provide a valid measure of jump height, but the remaining variables provided by these apps must be viewed with caution since the validity of force depends on jump type, while velocity (and as consequence power) could not be well estimated from the apps.
metadata.dc.description.unidade:	Faculdade de Educação Física (FEF) Faculdade de Ciências e Tecnologias em Engenharia (FCTE) – Campus UnB Gama
metadata.dc.description.ppg:	Programa de Pós-Graduação em Educação Física
Licença::	(CC BY 4.0)
DOI:	doi.org/10.7717/peerj.14558
Collection(s) :	Artigos publicados em periódicos e afins

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