Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Jan 30;7(1):e11099.
doi: 10.2196/11099.

Assessing the Validity of the MyJump2 App for Measuring Different Jumps in Professional Cerebral Palsy Football Players: An Experimental Study

Victor Coswig #  1 , Anselmo De Athayde Costa E Silva  1 , Matheus Barbalho  2 , Fernando Rosch De Faria  3 , Claudio D Nogueira  3 , Mariane Borges  3 , Jéssica R Buratti  3 , Ivaldo B Vieira  4 , Francisco Javier López Román  5 , José I Gorla  3
Affiliations

Assessing the Validity of the MyJump2 App for Measuring Different Jumps in Professional Cerebral Palsy Football Players: An Experimental Study

Victor Coswig et al. JMIR Mhealth Uhealth. .

Abstract

Background: Vertical jumps can be used to assess neuromuscular status in sports performance. This is particularly important in Cerebral Palsy Football (CP Football) because players are exposed to high injury risk, but it may be complicated because the gold standard for assessing jump performance is scarce in field evaluation. Thus, field techniques, such as mobile apps, have been proposed as an alternative method for solving this problem.

Objective: This study aims to evaluate the reliability of the measures of the MyJump2 app to assess vertical jump performance in professional CP Football.

Methods: We assessed 40 male CP Football athletes (age 28.1 [SD 1.4] years, weight 72.5 [SD 6.2] kg, and height 176 [SD 4.2] cm) through the countermovement jump (CMJ) and squat jump (SJ) using a contact mat. At the same time, we assessed the athletes using the MyJump2 app.

Results: There were no significant differences between the instruments in SJ height (P=.12) and flight time (P=.15). Additionally, there were no significant differences between the instruments for CMJ in jump height (P=.16) and flight time (P=.13). In addition, it was observed that there were significant and strong intraclass correlations in all SJ variables varying from 0.86 to 0.89 (both P<.001), which was classified as "almost perfect." Similar results were observed in all variables from the CMJ, varying from 0.92 to 0.96 (both P ≤.001).

Conclusions: We conclude that the MyJump2 app presents high validity and reliability for measuring jump height and flight time of the SJ and CMJ in CP Football athletes.

Keywords: cerebral palsy football; jump performance; mobile apps; mobile phone; paralympic sports.

PubMed Disclaimer

Conflict of interest statement

Conflicts of Interest: None declared.

Figures

Figure 1
Figure 1
Bland-Altman for agreement analysis of squat jumps.
Figure 2
Figure 2
Correlation for agreement analysis of squat jumps.
Figure 3
Figure 3
Bland-Altman for agreement analysis of countermovement jumps.
Figure 4
Figure 4
Correlation for agreement analysis of countermovement jumps.
See this image and copyright information in PMC

References

    1. International Federation of CP Football . IFCPF Sport Rules and Regulations. South Africa: IFCPF; 2018. Jan 01, [2018-11-27]. CP Football: Laws of the Game, Classification and rules https://www.ifcpf.com/rules .
    1. Stølen T, Chamari K, Castagna C, Wisløff U. Physiology of soccer: an update. Sports Med. 2005;35(6):501–36.3564 - PubMed
    1. Reilly T, Williams AM, Nevill A, Franks A. A multidisciplinary approach to talent identification in soccer. J Sports Sci. 2000 Sep;18(9):695–702. doi: 10.1080/02640410050120078. - DOI - PubMed
    1. Paul DJ, Nassis GP. Testing strength and power in soccer players: the application of conventional and traditional methods of assessment. J Strength Cond Res. 2015 Jun;29(6):1748–58. doi: 10.1519/JSC.0000000000000807. - DOI - PubMed
    1. Willick SE, Webborn N, Emery C, Blauwet CA, Pit-Grosheide P, Stomphorst J, Van DVP, Patino MNA, Martinez-Ferrer JO, Jordaan E, Derman W, Schwellnus M. The epidemiology of injuries at the London 2012 Paralympic Games. Br J Sports Med. 2013 May;47(7):426–32. doi: 10.1136/bjsports-2013-092374.bjsports-2013-092374 - DOI - PubMed

Publication types