The validity and reliability of a novel mobile app to measure agility performance in the physically active youth population

  1. Juan A. Escobar-Alvarez 1
  2. Rocío Carrasco-Zahínos 2
  3. Pedro R. Olivares 3
  4. Sebastián Feu 2
  5. Robinson Ramírez-Vélez 4
  6. Miguel Angel Pérez-Sousa 5
  1. 1 South Essex College
    info

    South Essex College

    Southend-on-Sea, Reino Unido

    ROR https://ror.org/038ta1n82

  2. 2 Facultad de Educación, Universidad de Extremadura, Badajoz, Spain
  3. 3 Facultad de Educación, Psicología y Ciencias del Deporte, Universidad de Huelva, Spain, Instituto de Actividad Física y Salud, Universidad Autónoma de Chile, Chile
  4. 4 Navarrabiomed-Universidad Pública de Navarra (UPNA), Complejo Hospitalario de Navarra (CHN),Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Navarra, Spain; CIBER of Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Pamplona, Navarra, Spain
  5. 5 Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain; Epidemiology of Physical Activity and Fitness Across Lifespan research group, University of Seville, Seville, Spain
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Revista:
European Journal of Human Movement

ISSN: 0214-0071,  2386-4095

Año de publicación: 2020

Número: 45

Tipo: Artículo

DOI: 10.21134/EURJHM.2020.45.9 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

Otras publicaciones en: European Journal of Human Movement

Resumen

Agility is a key component of physical fitness in adolescents. However, the measurement of this variable is usually complex, requiring high cost instruments and complex software. To test the validity and reliability of a novel iPhone app (Lap Tracker Auto-timer) to measure agility performance among adolescents.Twenty-four physically active adolescents (15.7 ± 2.3 years old) participated in two testing sessions (separated by 7 days). They performed three 4 x 10 m agility test trials measured by Photocell or the iPhone app.The correlation analysis revealed high validity (r = .92; 95% confidence interval [CI] = .88 –.95), with a standard error of the estimate of 0.56 s (p < 0.001). The coefficient of variation (CV; 0.09) and intraclass correlation coefficient (ICC; .93; 95% CI = .85 –.97) showed an acceptable reliability. This study demonstrated that the iPhone App Lap Tracker Auto-timer could be a valid, reliable and low-cost tool to evaluate agility performance in adolescents. However, more studies are required to guarantee the utility of this app.

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