The validity and reliability of a novel app for the measurement of change of direction performance
Author
Balsalobre-Fernández, Carlos
Bishop, Chris
Beltrán-Garrido, José Vicente
Cecilia-Gallego, Pau
Cuenca-Amigó, Aleix
Romero-Rodríguez, Daniel
Madruga-Parera, Marc
Publication date
2019ISSN
0264-0414
Abstract
The aim of the present investigation was to analyze the validity and reliability of a novel iPhone app (CODTimer) for the measurement of total time and interlimb asymmetry in the 5 + 5 change of direction test (COD). To do so, twenty physically active adolescent athletes (age = 13.85 ± 1.34 years) performed six repetitions in the COD test while being measured with a pair of timing gates and CODTimer. A total of 120 COD times measured both with the timing gates and the app were then compared for validity and reliability purposes. There was an almost perfect correlation between the timing gates and the CODTimer app for the measurement of total time (r = 0.964; 95% Confidence interval (CI) = 0.95–1.00; Standard error of the estimate = 0.03 s.; p < 0.001). Moreover, non-significant, trivial differences were observed between devices for the measurement of total time and interlimb asymmetry (Effect size < 0.2, p > 0.05). Similar levels of reliability were observed between the timing gates and the app for the measurement of the 6 different trials of each participant (Timing gates: Intraclass correlation coefficient (ICC) = 0.651–0.747, Coefficient of variation (CV) = 2.6–3.5%; CODTimer: ICC = 0.671–0.840, CV = 2.2–3.2%). The results of the present study show that change of direction performance can be measured in a valid, reliable way using a novel iPhone app.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
61 - Medical sciences
Keywords
Sprint
Agilitat
Biomecànica
Tecnologia
Smartphone
Carreras de velocidad
Agilidad
Biomecánica
Tecnología
Teléfono inteligente
Sprinting
Agility
Biomechanics
Technology
Smartphone
Pages
4
Publisher
Taylor & Francis
Collection
37; 21
Is part of
Journal of Sports Sciences
Citation
Balsalobre-Fernández, Carlos; Bishop, Chris; Beltrán-Garrido, José Vicente [et al.]. The validity and reliability of a novel app for the measurement of change of direction performance. Journal of Sports Sciences, 2019, 37(21), p. 2420-2424. Disponible en: <https://www.tandfonline.com/doi/full/10.1080/02640414.2019.1640029>. Fecha de acceso: 8 feb. 2024. DOI: 10.1080/02640414.2019.1640029
This item appears in the following Collection(s)
- Ciències de la Salut [740]
Rights
© Journal of Sports Sciences