Kinetic analysis of volleyball spike jump among young female volleyball players

ABSTRACT

This study investigated the differences between force-time (F-T) curve variables of volleyball spike jumps (SpJ) in simulated real-game conditions, including timing, force measurements, velocity, and power among four groups of young sub-elite female volleyball players (Under-14, −16, −18 and −20). The 1-way ANOVA revealed that U-18 and U-20 players produced significantly higher values of relative peak rate of force development (p = 0.015), average rate of force development (p = 0.046), relative power (p = 0.005), peak velocity (p = 0.001) and ultimate jump heights (p = 0.001), in comparison with U-14 and U-16 peers. Correlation analysis showed a significant correlation between the relative peak rate of force development, relative average rate of force development, and relative peak power with SpJ jump height in all age groups. Time series analysis of relative applied peak forces indicated that the U-18 and U-20 players reached their relative maximum applied forces significantly earlier than U-14 and U-16 players (p = 0.021). This study suggests that the increase in the height of the SpJ across age groups in young female players is mainly related to achieving faster time to peak force by increased concentric jump-phase peak velocity. Therefore, the time to peak force can be considered as the significant kinetic contributor to higher SpJ height.

KEYWORDS:

• Spike jump
• SPM analysis
• rate of force development
• lower limb power

Disclosure statement

No potential conflict of interest was reported by the author(s).

Ethical approval

The Institutional Review Board of Faculty of Physical Culture, Palacký University Olomouc, ethically approved this study (ethics code of 79/2018).

Additional information

Funding

The Internal Grant Agency of Faculty of Physical Culture, Palacky University Olomouc, supported this study [IGA_FTK_2019_008].