The validity and reliability of a novel mobile app to measure agility performance in the physically active youth population
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Juan A. Escobar-Alvarez [1] ; Rocío Carrasco-Zahínos [2] ; Pedro R. Olivares [3] ; Sebastián Feu [2] ; Robinson Ramírez-Vélez [4] ; Miguel Angel Pérez-Sousa [2]
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[1] South Essex College
South Essex College
Reino Unido
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[2] Universidad de Extremadura
Universidad de Extremadura
Badajoz, España
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[3] Universidad Autónoma de Chile
Universidad Autónoma de Chile
Temuco, Chile
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[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
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- Localización: European Journal of Human Movement, ISSN-e 2386-4095, ISSN 0214-0071, Nº. 45 (Second Semester), 2020
- Idioma: inglés
- Enlaces
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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.
