Increasing Explosive Power of the Shoulder in Volleyball Players

2003 ◽  
Vol 25 (6) ◽  
pp. 7-11 ◽  
Author(s):  
Cedric Dupuis ◽  
Claire Tourny-Chollet
2018 ◽  
Vol 6 (1) ◽  
pp. 18
Author(s):  
I Made Dwi Apri Pramana ◽  
I Putu Sutha Nurmawan ◽  
I Putu Adiartha Griadhi ◽  
Ida Ayu Dewi Wiryanthini

Muscle power was defined as the combination between speed and strenght of muscle contraction and enters in the fitness components. Plyometrics exercises can be used to improve the skills of volleyball players. This study was an experimental study using research designs pre test and post test control group design. The sampling technique inthis study with a simple random sampling. The total sample of 20 person so in one group consisted of 10 person. The first group was given additional ballistic stretching on knee tuck jump exercise. The second group was given knee tuck jump exercise. Measurements of leg muscle power using vertical jump test. Normality test p > 0.05 and homogeneitytest p > 0.05. The results showed an increase in leg muscle power in first group amounted to 14.30 cm and in second group an increase of 7.70 cm. Paired samples t-test p value = 0.000 (p <0.05) in first group and p = 0.000 (p < 0.05) in second group. Test increase explosive power leg muscle after exercise in both groups using independent sample t-test obtained first group and second group where p = 0.000 (p <0.05) with an increase in the percentage of 30.95% in the first group and 16.73% in the second group. From the research done can be concluded that the addition of ballisticstretching on knee tuck jump exercise is more effective than knee tuck jump exercise in increasing explosive power leg muscle in male volleyball players Medical Faculty Of Udayana University. Keywords: muscle power, ballistic stretching, knee tuck jump, vertical jump test.


Children ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 748
Author(s):  
Anja Lazić ◽  
Milovan Bratić ◽  
Stevan Stamenković ◽  
Slobodan Andrašić ◽  
Nenad Stojiljković ◽  
...  

Knee pads have become increasingly popular among volleyball players. Given the fact high-intensity activities that are crucial to successfully playing this sport lead to an increased risk of a knee injury, the primary use of knee pads is to prevent potential injury. However, no research has been carried out to explain the effects of knee pads on the most important physical abilities in volleyball players, thus directly affecting performance. This study was undertaken to determine the effects of knee pads on the explosive power of the lower extremities, linear speed, and agility in young female volleyball players. In two separated sessions, 84 female volleyball players (age: 14.83 ± 0.72 years; height: 163.19 ± 8.38 cm; body mass: 53.64 ± 10.42 kg; VE: 5.30 ± 3.39 years) completed squat jumps (SJ), countermovement jumps (CMJ) with and without arm swing, linear sprints at 5-m and 10-m, modified t-test, and 5-10-5 shuttle test. Data analyses included descriptive statistics, paired sample T-tests and use of effect size (ES). There was no statistical difference between the two conditions for SJ (p = 0.156; ES = 0.18), CMJ (p = 0.817; ES = 0.03), CMJ with arm swing (p = 0.194; ES = 0.14), linear sprint at 5 m (p = 0.789; ES = 0.03) and 10 m (p = 0.907; ES = −0.01), modified t-test (p = 0.284; ES = 0.13), and 5-10-5 shuttle test (p = 0.144; ES = 0.19). Wearing knee pads has neither an inhibitory nor positive effects on explosive power of the lower extremities, linear speed, and agility in young female volleyball players.


Author(s):  
Lucas Samuel Tessutti ◽  
Samuel da Silva Aguiar ◽  
Gustavo De Conti Teixeira Costa ◽  
Filipe Manuel Clemente ◽  
Ricardo Franco Lima ◽  
...  

Abstract The aim of the present study was to evaluate the age and inter- and intra-position differences in the anthropometric variables and physical performance in young female players of Brazilian women's volleyball. Fifty-eight female volleyball players participated, divided into 3 age groups: (a) 14 and under (n=20; mean age = 12.6±0.7 years), (b) between 14 and 17 (n=31; mean age = 15.6±1.2 years), and (c) over 17 (n=7; mean age = 18.9±0.9 years). In addition, the players were also divided according to their positions: setters (n=7), opposites (n=13), passer-hitters (n=17), middle blockers (n=12) and liberos (n=9). Anthropometric characteristics, flexibility, strength / resistance abdominal muscles, pushups, explosive power of the arms, jumping abilities, shuttle run and 20-m sprint tests were evaluated. Analyses showed differences among age and playing positions for the height and bone mass (p<0.05). In the fitness assessment, no differences were found between playing positions (p>0.05). However, differences were found among for age groups horizontal jump, shuttle run and 20-m sprint, with players >17 performing better than <14 and between 14-17 years of age (p<0.05). These results demonstrated that the height, bone mass and horizontal jump, shuttle run and 20-m sprint are age dependent, while physical performance independent on the playing positions.


2019 ◽  
Vol 17 (3) ◽  
Author(s):  
Mehrdad Shah Hosseini ◽  
Reza Rajabi ◽  
Hooman Minoonejad ◽  
Amir Hossein Barati

Author(s):  
Goran Glamočić ◽  
Branislav Strajnić ◽  
Branko Đukić ◽  
Vladimir Ivanek

This research aims to determine the relationship between morphological characteristics and abilities in volleyball players. It was conducted on the territory of Vojvodina autonomous province on a sample of 27 male volleyball players with an average age of 17.48 ± 0.50 years and an average sports experience of 6.33 ± 2.83 years. A test battery consisting of five variables for measuring morphological characteristics and twelve tests of abilities was applied: flexibility, speed, agility, endurance, static and explosive power. The normality of the data distribution was controlled by the Shapiro-Wilk test, and the connection between morphological characteristics and abilities was calculated by the Spearman ro correlation coefficient. The limit value for testing the normality of distribution of p> 0.05 was not met by: body mass index (p = 0.01), straddle in supine position (p = 0.03), single leg counter movement jump with the left leg (p = 0.01) and Yo-Yo Intermittent endurance test level 2 (p = 0.02). The connection of morphological characteristics with explosive power tests is especially noticeable, the most significant is the range of arms span with continuous jump with bent legs (ro = 0.75), single leg counter movement jump with the right leg (ro = 0.74) and Counter movement jump (ro = 0.63). The main finding in this study is that morphological characteristics are mostly negatively correlated with the explosive power of volleyball players. It is known that these characteristics and abilities have a significant share in the model of the ideal volleyball player and therefore their negative connections, the approach to the selection of volleyball and volleyball training must be based on scientific knowledge. Key words: measurement, testing, diagnostics, test batteries, volleyball


2021 ◽  
Vol 3 (1) ◽  
pp. 48-62
Author(s):  
Dini Hidayatul Qudsi ◽  
Sayuti Syahara ◽  
Hendri Irawadi ◽  
Yogi Setiawan

The problem in this research is that there is still a lack of smash accuracy on male volleyball players at SMA N 8 Padang. This study aims to determine the contribution between the explosive power of the leg muscles and the flexibility of the waist muscles on the smash accuracy of male volleyball players at SMA N 8 Padang. This research is a correlational type, with a population of this study as many as 20 male players. Sampling was done by saturated sampling, so the sample in this study were 20 male volleyball players at SMA N 8 Padang. The explosive power of the leg muscles was measured by the vertical jump test and the flexibility of the waist muscles by the bridge test, then the accuracy of the volleyball smash was measured by a normal smash. The data analysis technique used was simple correlation analysis and multiple correlation. Results: There was a contribution of the leg muscle explosive power to the accuracy of the volleyball smash of 50.27%. There is a contribution of waist muscle flexibility to the accuracy of the volleyball smash of 43.43%. Then, the leg muscle explosive power and the flexibility of the waist muscles simultaneously contributed to the accuracy of the volleyball smash by 72.93%. Thus, it can be concluded that the leg muscle explosive power and flexibility of the waist contribute to the accuracy of the volleyball smash.


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