Interrater Reliability and Time Measurement Validity of Speed�Agility Field Tests in Adolescents

• Autores: Germán Vicente Rodriguez, Juan Pablo Rey López, Jonatan Ruíz Ruíz, David Jiménez Pavón, Patrick Bergman, Donatella Ciarapica, José M. Heredia, Denes Molnar, Ángel Gutiérrez Sáinz, Luis A. Moreno Aznar, Francisco Bartolomé Ortega Porcel
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 25, Nº. 7, 2011, págs. 2059-2063
• Idioma: inglés
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• Dialnet Métricas: 8 Citas
• Resumen

  • The aim of this study was to examine the interrater reliability (trained vs. untrained raters) and criterion-related validity (manual vs. automatic timing) of the 4 × 10-m shuttle run and 30-m running speed tests (times measured). The study comprised 85 adolescents (38 girls) aged 13.0-16.9 years from the Healthy Lifestyle in Europe by Nutrition in Adolescence study. The time required to complete the 4 × 10-m shuttle run and 30-m running tests was simultaneously measured (a) manually with a stopwatch by both trained and untrained raters (for interrater reliability analysis), and (b) by using photoelectric cells (for validity analysis). Systematic error, random error, and heteroscedasticity were studied with repeated-measured analysis of variance and Bland-Altman plots. The systematic error for untrained vs. trained raters and the untrained raters vs. photoelectric cells were in all cases ~0.1 seconds (p < 0.01), that is, untrained raters recorded higher times. No systematic error was found between trained raters and photoelectric cells (p > 0.05). No heteroscedasticity was shown in any case (p > 0.05). The findings indicate that manual measurements by a trained rater, using a stopwatch, seem to be a valid method to assess speed and agility fitness testing in adolescents. Researchers must be trained to minimize the measurement error.