The Drop-Jump Video Screening Test: Retention of Improvement in Neuromuscular Control in Female Volleyball Players

Krosshaug T, Steffen K, Kristianslund E, et al. The vertical drop jump is a poor screening test for ACL injuries in female elite soccer and handball players: a prospective cohort study of 710 athletes. Am J Sports Med. 2016;44(4):874-883. (Original DOI: 10.1177/0363546515625048)

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Bilateral counter movement jump, squat, and drop jump performances in deaf and normal-hearing volleyball players: a comparative study

Journal of Exercise Rehabilitation ◽

10.12965/jer.2142522.261 ◽

2021 ◽

Vol 17 (5) ◽

pp. 339-347

Author(s):

Yücel Makaracı ◽

Ömer Özer ◽

Recep Soslu ◽

Abdullah Uysal

Keyword(s):

Force Plate ◽

Normal Hearing ◽

Drop Jump ◽

Mean Values ◽

Communication Problems ◽

Counter Movement Jump ◽

Test Parameters ◽

Volleyball Players ◽

Elite Level ◽

Jumping Test

Since deaf athletes do not have any physical deficiencies, it is known that they can easily participate in sports competitions if their communication problems are resolved. This study aimed to compare the performances of olympic deaf and elite normal-hearing volleyball players in different jumping test protocols. A total of 26 male volleyball players participated in the study, comprised of 12 olympic level deaf and 14 elite level normal-hearing. Following anthropometric measurements, athletes performed bilateral counter movement, squat and drop jump tests on a force plate. Each test was performed 3 times with maximal effort separated by 45 seconds of passive recovery and the mean of the three trials was selected for analysis. Independent Samples t-test was used to compare the differences in mean values of jumping test parameters between the groups. Normal-hearing athletes are observed to have significantly better scores than deaf athletes in all test protocols. Considering that the number of studies on athletic performance in deaf athletes is limited, it can be said that our study will contribute to researchers and coaches in respect of detecting a key ability in volleyball, such as jumping, in different jump protocols.

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Impact of Drop Jump Index For17-18 Year Old Volleyball Players in Albania

Psychology and Education Journal ◽

10.17762/pae.v58i3.4607 ◽

2021 ◽

Vol 58 (3) ◽

pp. 4008-4013

Author(s):

Enkeleida Lleshi, Et. al.

Keyword(s):

Vertical Jump ◽

Young Female ◽

Drop Jump ◽

Plyometric Training ◽

Jump Performance ◽

Training Performance ◽

Vertical Jumping ◽

Volleyball Players ◽

Before And After ◽

The Relationship

Volleyball is characterized by the activity of vertical jump performance in the technical elements of attack, block and service. The study focuses on young Female & Male players during the 12-week plyometric training. The objective of this study is to evaluate the effects of 12-weeks plyometric training performance in volleyball players M & F in Albania to see the differences between them. Methods; 40 young players (F & M) participated in this study. N=10 M & N=10 F volleyball players considered as Experimental and the same number as Control. The average age of players included in this study is 17-18 years old. The players of both groups were evaluated before and after 12 weeks. The F&M Experimental groups conducted 12 weeks of plyometric training with 2 sessions for a week. The F&M Control groups conducted the training according to the method of their trainers. Besides anthropometric measurements they developed Drop Jump tests by jumping from the cube in height 40 cm and 60 cm. Results; The results showed a high correlation coefficient (r = 0,924) and statistically significant (p <0,05). Data obtained from two groups GRFP show that the relationship between the contact time and the time air changes between the two tests DJ 40-60cm. Conclusions. The methodology used helps us compare the high and poor performances that help coaches to program more detailed plyometric training for the development of jumping skills in young volleyball players. The effect of plyometric training developed on M&F volleyball players and according to data obtained from GRFP, showed that male volleyball players had a better performance in vertical jump than female volleyball players. Vertical jumping may be assessed not only by the height of its development but also by the phase of residence in the air.

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