Next Article in Journal
Solute Transport in the Element of Fractured Porous Medium with an Inhomogeneous Porous Block
Next Article in Special Issue
Asymmetries in Football: The Pass—Goal Paradox
Previous Article in Journal
On Valency-Based Molecular Topological Descriptors of Subdivision Vertex-Edge Join of Three Graphs
Previous Article in Special Issue
Straight Leg Raise Test: Influence of Lumbosant© and Assistant Examiner in Hip, Pelvis Tilt and Lumbar Lordosis
Open AccessArticle

A Time-Motion Analysis of the Cross-Over Step Block Technique in Volleyball: Non-Linear and Asymmetric Performances

1
Faculty of Physical Activity and Sports Science, Pablo de Olavide University, 41013 Seville, Spain
2
SEJ-570 MOTIVA2 Research Group, Pablo de Olavide University, 41013 Seville, Spain
3
Faculty of Educational Sciences, University of Almeria, 04120 Almería, Spain
4
LFE Research Group, Universidad Politécnica de Madrid, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Symmetry 2020, 12(6), 1027; https://doi.org/10.3390/sym12061027
Received: 10 May 2020 / Revised: 10 June 2020 / Accepted: 14 June 2020 / Published: 18 June 2020
Blocking performance in volleyball is strongly affected by the time in which the action is executed. This study analyzes the time-motion variables in terms of the player’s role and movement direction (right or left), in different phases of the displacement and jump actions in the cross-over step block technique. A kinematic analysis was conducted with 10 senior male volleyball players. Two series of five repetitions were each recorded and classified in terms of middle-blockers (block in the center and sides of the net) and wing-players (only block in the sides). The results showed that the middle-blockers were significantly slower than the wing-players in the first (0.75 ± 0.24 vs. 0.66 ± 0.19 sec; p = 0.020; ES = −0.37 ± 0.30) and fourth phases (0.33 ± 0.8 vs. 0.29 ± 0.8 sec; p = 0.001; ES = −0.44 ± 0.31), and in the total time for blocking (3.15 ± 0.6 vs. 3 ± 0.58 sec; p = 0.003; ES = −0.23 ± 0.31). Overall, players were significantly faster when moving to the right side, showing performance asymmetries. The fastest phases were also performed just before the jump. These findings provide specific knowledge about the cross-over step block technique in its different phases and displacement direction. This information can be used to improve the movement time in the first defensive action in volleyball. View Full-Text
Keywords: asymmetric training; kinematic analysis; defensive action; movement speed; technique asymmetric training; kinematic analysis; defensive action; movement speed; technique
Show Figures

Graphical abstract

MDPI and ACS Style

Hernández-Hernández, E.; Montalvo-Espinosa, A.; García-de-Alcaraz, A. A Time-Motion Analysis of the Cross-Over Step Block Technique in Volleyball: Non-Linear and Asymmetric Performances. Symmetry 2020, 12, 1027.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop