The kinematical analysis of blocking skill in volleyball and their relationships with the explosive force of lower limbs

Authors : Hicham BENELGUEMAR, Sba BOUABDELLAH, Farıd MOUISSI

Pages : 73-79

Doi:10.18826/useeabd.731462

View : 15 | Download : 4

Publication Date : 2020-06-15

Article Type : Research Paper

Abstract :Aim: The study aims to conduct a kinematical analysis of blocking skill in volleyball and their relationships with the explosive force of lower limbs, for the athletes from the elite Algerian team. Methods: A total of 06 male Volleyball Players from the elite Algerian team as volunteers insert ignore into journalissuearticles values(Age: 25.66+3.32 yr, Length:198.00+3.68 cm, Weight: 86.66+6.62 kg);. We used for kinematical analysis the software Dartfish9. For video capturing, we used three cameras insert ignore into journalissuearticles values(AEE Magic Cam); for record the performance during an Experimental competition, two CAMІ&Пinsert ignore into journalissuearticles values(X1m, Y, Z1.5m); were placed in the sides of volleyball Court, and CAMⅢinsert ignore into journalissuearticles values(X4.5m, Y1m, Z1.5m); behind the elite Algerian team. Also, two force Explosive tests were executed; Squat Jump insert ignore into journalissuearticles values(SJ); and Counter Movement Jump insert ignore into journalissuearticles values(CMJ);. The data were analyzed in SPSS 22.0 program. Descriptive statistics insert ignore into journalissuearticles values(mean±SD); and P test for the correlations between variables studied. Results: Through the statistical analysis, there were significant correlations between values of CMJ test with both of the DHeightBCG insert ignore into journalissuearticles values(p<0.01);, & DMax height insert ignore into journalissuearticles values(p<0.01);, and between variable DMax height with each of the °Trunk insert ignore into journalissuearticles values(p<0.01);, & °Knee insert ignore into journalissuearticles values(p<0.01);, and DLowBCG insert ignore into journalissuearticles values(p<0.01);, and DHeightBCG insert ignore into journalissuearticles values(p<0.01); respectively, at the 0.05 level. Also, between DLowBCG with °Trunk insert ignore into journalissuearticles values(p<0.01);, and with °Knee insert ignore into journalissuearticles values(p<0.01);. Conclusion: This study was able to produce results that are helpful to coaches when deciding when they are considering vertical jump heights during the performance of blocking skill in volleyball, through developing the technical aspect of the blocking skill by training players to improve the kinematical properties of a certain degree; especially, the angles of the lower limbs of the body, such as the angles of the trunk, knee, and ankle. 
Keywords : Kinematical Analysis, VolleyBall, Blocking Skill, Explosive Force