Fatahi A, Sadeghi H, Yousefian Molla R, Ameli M. Selected Kinematic Characteristics Analysis of Knee and Ankle Joints During Block Jump Among Elite Junior Volleyball Players. PTJ 2019; 9 (3) :161-168
URL:
http://ptj.uswr.ac.ir/article-1-395-en.html
1- Department of Sport Biomechanics, Faculty of Physical Education and Sport Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
2- Department of Sport Biomechanics, Kharazmi University, Tehran, Iran.
3- Department of Physical Education and Sport Sciences, Payam-e-Noor University, Tehran, Iran.
Abstract: (3306 Views)
Purpose: The present study examined selected kinematic characteristics analysis of knee and ankle joints during block jump in elite junior volleyball players.
Methods: Thirty male junior elite volleyball players (Mean±SD age: 18.14±1.12 y, height: 197.10±3.16 cm, sports history: 4.39±0.95 y, & weight: 771.20±59.83 N) participated in this study. A time-synchronized 5-camera sampling at 100 Hz was used to determine the Three Dimensional (3D) coordinates of markers. Kolmogorov-Smirnov test, linear regression, and magnitude of coefficient were used in SPSS to analyze the obtained data (P<0.05).
Results: The Mean±SD height of block jump was 45.5±2.06 cm, and the Mean±SD angles of knee and ankle flexion were 93.37±4.75 and 21.25±2.98 cm, respectively. Moreover, there was a negative relationship between knee and ankle flexion angle and block jump height (-0.051, -0.054, respectively) (P<0.05). However, smaller knee flexion angles had more negative effect on block jump height (0.741) (P<0.05).
Conclusion: The study results could be used by coaches as a simple tool in jumping performance among junior volleyball players. The obtained data could also be beneficial in the efficient control of applied training procedures.
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● Kinematic Analysis of Knee and Ankle in Volleyball Block Jump.
Plain Language Summary
According to the Global interest in Volleyball and great tendency for improving, among volleyball players. enormous scientific investigation is performing. through various methods biochemical analysis of skills is of the great interests. Block Jump is one of the most important skills that it is recommended to concentration on it.
Type of Study:
Research |
Subject:
Special Received: 2018/11/25 | Accepted: 2019/04/20 | Published: 2019/07/1