Efecto de modificar la profundidad y velocidad del contramovimiento durante el salto vertical

  1. Sánchez-Sixto, Alberto 1
  2. López-Álvarez, Julio 2
  3. Floría, Pablo 3
  1. 1 Fundación CEU San Pablo Andalucia
  2. 2 Fundación CEU Andalucia.
  3. 3 Universidad Pablo de Olavide
    info

    Universidad Pablo de Olavide

    Sevilla, España

    ROR https://ror.org/02z749649

Journal:
Retos: nuevas tendencias en educación física, deporte y recreación

ISSN: 1579-1726 1988-2041

Year of publication: 2018

Issue: 34

Pages: 287-290

Type: Article

DOI: 10.47197/RETOS.V0I34.64854 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

More publications in: Retos: nuevas tendencias en educación física, deporte y recreación

Abstract

Purpose. The aim of the study was to evaluate the effects of countermovement depth and velocity modification in the vertical jump. Materials and methods. Eleven team sport players participated in this investigation performing nine countermovement jumps: 3 self-selected countermovement jumps (CMJ), 3 countermovement jumps with a deeper countermovement depth (CMJP) and 3 countermovement jumps with a deeper countermovement depth and a higher downward movement velocity (CMJPR). Jump height, time, force, velocity and center of mass displacement were measured during the countermovement and the propulsion phase. Results. No differences in jump height were found between the three types of jump. CMJPR showed a substantial increase in maximum force and initial force in comparison with the CMJ. CMJP force variables were lower than the values obtained during the CMJ. The time of the countermovement phase was lower in the CMJ in comparison with the CMJP, and no differences were found between the CMJ and the CMJPR. The time of the propulsion phase was lower than the other countermovement jumps performed. Conclusion. Increases in the countermovement depth of the CMJ through a simple instruction did not increase the vertical jump performance in the present investigation.

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