The validity and reliability of a novel app for the measurement of change of direction performance
Article
Balsalobre-Fernández, C., Bishop, C., Beltrán-Garrido, J., Cecilia-Gallego, P., Cuenca-Amigó, A., Romero-Rodríguez, D. and Madruga-Parera, M. 2019. The validity and reliability of a novel app for the measurement of change of direction performance. Journal of Sports Sciences. 37 (21), pp. 2420-2424. https://doi.org/10.1080/02640414.2019.1640029
Type | Article |
---|---|
Title | The validity and reliability of a novel app for the measurement of change of direction performance |
Authors | Balsalobre-Fernández, C., Bishop, C., Beltrán-Garrido, J., Cecilia-Gallego, P., Cuenca-Amigó, A., Romero-Rodríguez, D. and Madruga-Parera, M. |
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. |
Keywords | Sprinting; agility; biomechanics; smartphone; technology |
Publisher | Taylor & Francis (Routledge) |
Journal | Journal of Sports Sciences |
ISSN | 0264-0414 |
Electronic | 1466-447X |
Publication dates | |
Online | 05 Jul 2019 |
02 Nov 2019 | |
Publication process dates | |
Deposited | 19 Jul 2019 |
Accepted | 29 Jun 2019 |
Output status | Published |
Accepted author manuscript | File Access Level Open |
Copyright Statement | This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 29/06/2019, available online: http://www.tandfonline.com/10.1080/02640414.2019.1640029 |
Digital Object Identifier (DOI) | https://doi.org/10.1080/02640414.2019.1640029 |
Language | English |
https://repository.mdx.ac.uk/item/885y3
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