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Playerload™ y métricas basadas en acelerómetros: evaluación científica e implicaciones para la monitorización de
Craig A Staunton1,2, Peter Edholm2, Bernardo N Ide3
1Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden.
Frontiers in sports and active living
|January 28, 2026
Resumen
PlayerLoad™ es una métrica popular para la carga del atleta pero carece de validación científica. Esta revisión cuestiona su fiabilidad y sugiere métricas alternativas más rigurosamente definidas para la ciencia del deporte.
Área de la Ciencia:
- Ciencia del Deporte; Biomecánica; Fisiología del Ejercicio
Sus antecedentes:
- PlayerLoad™ es una métrica derivada de acelerómetros ampliamente adoptada para cuantificar las cargas de entrenamiento externas en deportes.; Su forma normalizada, PlayerLoad·min⁻¹, se utiliza con frecuencia como un indicador de la intensidad del ejercicio.; Existen preocupaciones sobre la base científica de PlayerLoad™, incluidas inconsistencias en la definición y una metodología opaca.
Objetivo del estudio:
- Evaluar críticamente la validez y fiabilidad científica de la métrica PlayerLoad™.; Destacar la necesidad de una mayor transparencia y rigor teórico en la monitorización de atletas con dispositivos portátiles.; Introducir métricas alternativas derivadas de acelerómetros basadas en sólidos principios biomecánicos y fisiológicos.
Principales métodos:
- Revisión crítica de la literatura existente sobre PlayerLoad™.; Análisis de los fundamentos teóricos y las aplicaciones prácticas de PlayerLoad™.; Comparación con métricas alternativas derivadas de acelerómetros.
Principales resultados:
- La validez del constructo de PlayerLoad™ no está verificada, con fundamentos teóricos cuestionables.; La evidencia sugiere relaciones débiles de dosis-respuesta entre PlayerLoad™ y los resultados de rendimiento.; Definiciones inconsistentes, unidades arbitrarias y terminología imprecisa desafían su base científica.
Conclusiones:
- Las preocupaciones significativas sobre la validez y fiabilidad de PlayerLoad™ justifican un escrutinio científico crítico.; Existe una necesidad apremiante de una mayor transparencia y rigor teórico en la monitorización de atletas con dispositivos portátiles.; Las métricas alternativas con principios biomecánicos y fisiológicos más claros pueden ofrecer medidas más sólidas e interpretables.
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