LA IMPORTANCIA DE LA PROFUNDIDAD DEL CONTRAMOVIMIENTO EN EL CICLO ESTIRAMIENTO-ACORTAMIENTO

A. Sánchez-Sixto, A.J. Harrison, P. Floría

Resumen


El objetivo de la presente investigación fue determinar la influencia de las variables relacionadas con la aplicación de fuerza y el desplazamiento del centro de masas en las diferencias en la altura saltada entre el salto sin contramovimiento (SJ) y el salto con contramovimiento (CMJ). Participaron veintiséis hombres, realizando tres SJ y tres CMJ con 90° de flexión de rodilla. El desplazamiento del centro de masas y la fuerza media durante la fase de propulsión fueron significativamente superiores en el CMJ en comparación con el SJ, explicando el 75% de la diferencia entre los dos saltos y teniendo un 30% más de influencia el desplazamiento del centro de masas. No hubo diferencias en la fuerza máxima. Los resultados sugieren la necesidad de examinar el desplazamiento del centro de masas para interpretar adecuadamente las diferencias entre el SJ y el CMJ cuando el criterio establecido es 90° de flexión de rodilla.


Palabras clave


Biomecánica; Salto; Cinética; Cinemática

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Referencias


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DOI: http://dx.doi.org/10.15366/rimcafd2019.73.003

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