Fiabilidad y validez del sensor de movimiento y el radar para medir la velocidad del volante en bádminton
Fiabilidad y validez para medir la velocidad en bádminton
Resumen
El radar Doppler y la unidad de medición inercial se utilizan a menudo para analizar la velocidad del proyectil. El objetivo de este estudio fue analizar la fiabilidad y la validez de un sensor de movimiento (denominado Zepp Tennis) y un radar (pistola de radar Doppler) para medir la velocidad del proyectil. Treinta y cuatro jugadores (novatos, intermedios y expertos) realizaron golpes de bádminton en un objetivo localizado. Se extrajo la velocidad del proyectil de cinco golpes utilizando los datos del Zepp Tennis y de la pistola de radar Doppler. La reproducibilidad entre las medidas se determinó comparando las dos sesiones. Las medidas del Zepp Tennis y de la pistola de radar Doppler se compararon con los datos de vídeo de alta frecuencia para establecer su validez. Ambos instrumentos fueron altamente reproducibles entre las pruebas a diferente velocidad (coeficiente de correlación intraclase: 0,88-0,94 para el radar y 0,78-0,89 para el sensor de movimiento). Además, la ubicación del radar (en frente del proyectil y angulación), la ubicación del sensor de movimiento y la complejidad del movimiento (extensión y pronación del antebrazo) afectan a la reproducibilidad. En términos de validez, el radar y el sensor de movimiento proporcionan una medida precisa, pero subestiman la velocidad del proyectil (-9,7% y -13,6% respectivamente).
Citas
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Derechos de autor 2022 International Journal of Racket Sports Science

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