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Investigación de los mecanismos de rotación del cuerpo durante el lanzamiento de disco de pie utilizando una tabla
Keitaro Seki1, Shota Kikuchi2, Kazumichi Ae3
1Department of Physical Education, College of Humanities and Sciences, Nihon University, Tokyo, Japan.
Journal of sports sciences
|September 3, 2025
Resumen
Usando una tabla inclinada en el lanzamiento de discos, los atletas pueden generar un mayor impulso angular con menos fuerza de reacción al suelo. Esto sugiere una técnica óptima para mejorar la rotación del cuerpo y el rendimiento.
Área de la Ciencia:
- Biomecánica
- Ciencias del deporte
- El rendimiento deportivo
Sus antecedentes:
- La velocidad de liberación es crítica para el rendimiento de lanzamiento de disco.
- El momento angular sobre el eje vertical es significativo, pero su mecanismo no está claro.
Objetivo del estudio:
- Investigar la mecánica de rotación en el lanzamiento de disco de pie.
- Examine el efecto de una tabla inclinada bajo el pie derecho.
Principales métodos:
- Quince hombres lanzaban el disco de pie.
- Se probaron cuatro ángulos de inclinación: 0°, 4°, 8° y 12°.
- Se analizaron el momento angular y las fuerzas de reacción del suelo.
Principales resultados:
- No hay diferencia significativa en el momento angular a través de inclinaciones.
- Mayor impulso angular desde el pie derecho a 12° y 8° en comparación con 0°.
- Impulso del pie más pequeño a 12°, 8° y 4° en comparación con 0°.
- Aumento del impulso en la dirección de lanzamiento a 12° en comparación con 4° o 0°.
Conclusiones:
- Las condiciones de inclinación pueden permitir un momento angular equivalente con una fuerza de reacción al suelo reducida.
- Esto sugiere una posición óptima del cuerpo para facilitar la rotación en el lanzamiento de discos.
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