scholarly journals EFFECT OF HIGH AND LOW FLEXIBILITY ON AGILITY, ACCELERATION SPEED AND VERTICAL JUMP PERFORMANCE OF VOLLEYBALL PLAYERS

2021 ◽  
Vol 6 (11) ◽  
Author(s):  
Aruna Gulati ◽  
Rita Jain ◽  
Anuradha Lehri ◽  
Rajneesh Kumar
Keyword(s):  
Vertical Jump ◽  
Training Programme ◽  
Lower Body ◽  
Muscular Power ◽  
Cross Sectional ◽  
Jump Performance ◽  
Arm Swing ◽  
Significant Difference ◽  
Volleyball Players ◽  
High Flexibility

This study aimed to assess the effect of high and low levels of flexibility on key performance indicators of volleyball performance. Eighty-four volleyball players (n=84; mean±SD; decimal age: 16.57±1.51; height (cm): 176.23±8.77; body mass (kg): 66.14±11.79) were selected for the study. The design of the study was cross-sectional and to measure selected variables i.e. agility, lower body muscular power, and acceleration speed; 6×10 m shuttle run, countermovement jump (with arm swing) test and 20 m sprint test (standing start) were used. To measure the flexibility level of the players, sit and reach test was used. Shapiro-Wilk normality test was conducted to check the distribution of data and the Levine test was applied to check homogeneity of the variance in data. Participants were divided into two groups i.e. High Flexibility Group (HFG) and Low Flexibility Group (LFG) using k-means cluster analysis and independent t-test was applied to find the differences between HFG and LFG. The level of significance was set at p < 0.05. Results showed statistically significant difference between HFG and LFG in agility, acceleration speed and lower body muscular power and, based on the results, it was concluded coaches should include flexibility training in the regular training programme. The results obtained supported the rationale that baseline flexibility may influence the performance of volleyball players. <p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0778/a.php" alt="Hit counter" /></p>

A Descriptive Study of Lower-Body Strength and Power in Overweight Adolescents

2009 ◽  
Vol 21 (1) ◽  
pp. 34-46 ◽  
Author(s):  
James L. Nuzzo ◽  
Michael J. Cavill ◽  
N. Travis Triplett ◽  
Jeffrey M. McBride
Keyword(s):  
Body Mass ◽  
Vertical Jump ◽  
Descriptive Analysis ◽  
Lower Body ◽  
Maximal Strength ◽  
Jump Performance ◽  
Leg Press ◽  
Body Strength ◽  
Significant Difference ◽  
Lower Body Strength

The primary purpose of this investigation was to provide a descriptive analysis of lower-body strength and vertical jump performance in overweight male (n = 8) and female (n = 13) adolescents. Maximal strength was tested in the leg press and isometric squat. Kinetic and kinematic variables were assessed in vertical jumps at various loads. When compared with females, males demonstrated significantly greater (p ≤ .05) absolute maximal strength in the leg press. However, when maximal strength was expressed relative to body mass, no significant difference was observed. There were no significant differences between males and females in vertical jump performance at body mass.

Mechanical role of Arm Swing on Vertical Jump Performance

2021 ◽  
pp. 209-214
Author(s):  
Pallab Ghosh ◽  
Papan Mondal ◽  
Pintu Masanta
Keyword(s):  
Positive Relationship ◽  
West Bengal ◽  
Vertical Jump ◽  
Advanced Technology ◽  
Jump Performance ◽  
Arm Swing ◽  
Significant Difference ◽  
University Level ◽  
The University

Introduction: Advanced technology has allowed biomechanists to gather very accurate measurements of many of the parameters associated with human movement. In sports, vertical jump is very important factors. It is an effective exercise for building both endurance and explosive power and through the vertical jump performance the players take advantage in sports. So here, the present study was to analyze the Mechanical role of arm swing on vertical jump performance. Objective: 1. To know the mechanical role of arm swing and without arm swing on vertical jump performance of university level players of Jadavpur University, West Bengal, India. 2. To know the effect of power on arm swing and without arm swing of vertical jump performance of the university level players of Jadavpur University, West Bengal, India. 3. To find out the relationship between power and arm swing of vertical jump performance of the university level players of Jadavpur University, West Bengal, India. Methodology: 4 Volleyball (20.29±1.38 years, 179±4.54cm and 67±4.34kg), 4 Basketball (23.43±2.57years, 170.57±3.15cm and 62.13±7.58kg) and 4 High Jump (21.75±.95 years, 170.37±3.15cm and 64.75±2.21kg) university (Jadavpur university) level players were selected randomly as the subjects. Results: The result of study revealed that there were significant differences (t-4.17*) between arm swing (56.67±4.86cm) and without arm swing (43.21±4.23) vertical jump performance of high jump players and vertical jump performance of the volleyball and basketball players were found no significant difference but positive effect showed. Also the results showed that in power (ground reaction force) there were no significant differences found between arm swing and without arm swing of the university level players. There were also positive relationship found in Volleyball (r-0.61), Basketball (r- 0.89) and High jump (r- 0.84) University level players between power and arm swing vertical jump performance. Conclusion: Arm swing positively effect on the vertical jump performance for Volleyball, Basketball and High Jump players. Arm swing also positively effect on increased the power which in turn help to increased the jumping height of Volleyball, Basketball and High Jump players. It also concluded that there is positive relationship between power and with arm swing in vertical jump performance.

scholarly journals Effect of 6-Month Fascia-Oriented Training on Jump Performance in Elite Female Volleyball Players

2017 ◽  
Vol 11 (2) ◽  
pp. 47-54
Author(s):  
Renáta Vychodilová ◽  
Martin Zvonař ◽  
Martin Sebera
Keyword(s):  
Scientific Evidence ◽  
Vertical Jump ◽  
Training Programme ◽  
Control Group ◽  
Performance Potential ◽  
Jump Performance ◽  
Volleyball Players ◽  
Before And After ◽  
Medium Level ◽  
The Difference

Fascia-oriented training is supposed to enhance physical performance potential. Specifically, the employment of the catapult mechanism, the refinement of the elastic energy storage, remodelling, rehydration and release in fascia tissue are supposed to enable faster and more powerful jump performance. The authors of the present study reviewed that little applied research has been conducted to bring scientific evidence verifying these findings in sports practice. The study was conducted to assess the effect of a 6-month, fascia-oriented training programme, designed in accordance with the principles of the fascia-oriented exercise, on the height of vertical countermovement jump (CMJ) performance in well-trained volleyball players. Sixteen female players (age 17.31 ± 0.98; height 173 ± 5.26; weight 65.25 ± 6.75) competing in the national league were randomly assigned for the training (TG) and control group (CG). TG performed a supervised 25-minute fascia-oriented training twice a week for six months. Measurements were conducted before and after the training intervention; the subjects performed 3 trials of CMJ. The study hypothesized that after the application, the height of CMJ would increase more in TG than in CG. The results show that the height of CMJ in TG increased comparing to CMJ height in CG, though the difference is not statistically significant. The results of the effect size manifest the increase of medium level, by 2.2cm in TG. Thus we conclude that the results of the study indicate that the application of the 6-month, fascia-oriented training aimed to develop the vertical jump performance potential in elite volleyball players is not statistically significantly beneficial.

scholarly journals Effects of Post-Activation Potentiation (PAP) Warm-up on Vertical Jump Performance among Volleyball Players

2021 ◽  
Vol 11 (4S) ◽  
pp. 196
Author(s):  
Diong Zhi Ling ◽  
Chee Chen Soon ◽  
Mohd Rozilee Wazir Norjali Wazir ◽  
Kok Lian Yee
Keyword(s):  
Resistance Exercise ◽  
Vertical Jump ◽  
Pairwise Comparison ◽  
Repeated Measure ◽  
Jump Performance ◽  
Warm Up ◽  
Significant Difference ◽  
Exercise Routine ◽  
Volleyball Players ◽  
Versus Complex

This study aims to examine the effects of resistance versus complex exercise with the retention of post-activation potentiation (PAP) on vertical jump among volleyball players. A total of 30 volleyball players (mean age = 16.5 ± 1.106 years old) were recruited as participants of this study. The participants were requested to attend two different testing sessions, with two days between each session. Each session had a different exercise routine, namely, resistance and complex. A one-way repeated measure was used to analyse the performance of the vertical jump, while a pairwise comparison was applied to compare the retention of PAP between the resistance and complex exercises. The findings show that there is a significant interaction for both warm-up exercises; [(F(1,29)=1275.57, p=0.000] for resistance exercise and [(F(1,29) = 1456.83, p= 0.000] for complex exercise. The retention analysis for PAP effect also indicates that there is a significant difference between the two warm-up activities in vertical jump performance. In conclusion, this study reveals that both exercises managed to increase PAP among volleyball players. However, complex exercise is suggested to be combined with the warm-up method as it can maintain a longer retention than resistance exercise.

scholarly journals Effect of an Arm Swing on Countermovement Vertical Jump Performance in Elite Volleyball Players

2016 ◽  
Vol 53 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Frantisek Vaverka ◽  
Daniel Jandačka ◽  
David Zahradník ◽  
Jaroslav Uchytil ◽  
Roman Farana ◽  
...  
Keyword(s):  
Body Position ◽  
Vertical Jump ◽  
Reaction Force ◽  
The Body ◽  
Jump Height ◽  
Vertical Ground Reaction Force ◽  
Average Force ◽  
Jump Performance ◽  
Arm Swing ◽  
Volleyball Players

AbstractThe aim of this study was to determine how elite volleyball players employed the arm swing (AS) to enhance their jump performance. The study assessed how the AS influenced the duration and magnitude of the vertical ground reaction force (VGRF) during the main phases (preparatory, braking and accelerating) of the countermovement vertical jump (CMVJ), the starting position of the body at the beginning of the accelerating phase and the moment when the AS began contributing to increasing the jump height. Eighteen elite volleyball players performed three CMVJs with and without an AS. Kinetics and kinematics data were collected using two Kistler force plates and the C-motion system. The time and force variables were evaluated based on the VGRF, and the position of the body and the trajectory of the arm movement were determined using kinematic analysis. The AS improved the CMVJ by increasing the jump height by 38% relative to jumping without an AS. The AS significantly shortened the braking phase and prolonged the accelerating phase, however, it did not influence the preparatory phase or the overall jump duration. The AS also significantly increased the average force during the accelerating phase as well as the accelerating impulse. The AS upward began at 76% into the overall jump duration. The AS did not influence the body position at the beginning of the accelerating phase. These findings can be used to improve performance of the CMVJ with the AS and in teaching beginning volleyball players proper jumping technique.

scholarly journals Postactivation potentiation improves jumps performance in children ages 6 to 8 years old

2021 ◽  
Vol 38 (3) ◽  
pp. 192-196
Author(s):  
C Gerber ◽  
P Sirieiro ◽  
I Nasser ◽  
C Taber ◽  
H Miranda
Keyword(s):  
Body Mass ◽  
Vertical Jump ◽  
Cross Sectional Study ◽  
Postactivation Potentiation ◽  
Cross Sectional ◽  
Jump Performance ◽  
Jumping Performance ◽  
Jump Test ◽  
Low Load ◽  
Vertical Jumps

Introduction: The aim of the present study was to investigate the effects of postactivation potentiation (PAP) in vertical and horizontal jump performance in pre-pubertal children. Material and method: One hundred and nineteen children (65 girls and 54 boys; 6.8 ± 0.7 years old; 124.5 ± 6.4 cm; 25.2 ± 5.1 kg) participated in this study. This was a transversal cross-sectional study which incorporated a within-subjects repeatedmeasures design, where participants completed all protocols. The experimental procedure required four total testing, separated by one week, using a counterbalanced. This study investigated jumping performance associated with weighted jumps, lowload vertical jumps, and horizontal jumps. During two sessions the participants performed vertical jumps with and without PAP, the other two sessions the same procedures were performed for horizontal jumps. The PAP protocol consisted of one set of five weighted countermovement jumps with low-load (10% of body mass) and a rest interval of four minutes prior to the jump tests. Paired t-tests were used between conditions (PAP and control) in the vertical jump and horizontal jump test. In addition, Cohen’s d effect size and 95% confidence interval was used. Results: Significant jump height was observed in the vertical jump in the PAP condition compared to the control condition (p = 0.007). Similar results were observed for the horizontal jump tests, with significant longer distance observed in the PAP condition (p = 0.036). Conclusions: Pre-pubertal children can benefit from the effects of PAP in vertical and horizontal jumping performance when preceded by low-load ballistic movements. A protocol implementing low-loads, determined by a relative percentage of body mass is effective to promote PAP for young children.

scholarly journals Using Bilateral Functional and Anthropometric Tests to Define Symmetry in Cross-Country Skiers

2017 ◽  
Vol 60 (1) ◽  
pp. 9-18 ◽  
Author(s):  
Glenn Björklund ◽  
Marie Alricsson ◽  
Ulla Svantesson
Keyword(s):  
Muscle Mass ◽  
Muscle Function ◽  
Vertical Jump ◽  
Upper Body ◽  
Lower Body ◽  
Jump Performance ◽  
Individual Level ◽  
Symmetry Index ◽  
Counter Movement Jump ◽  
Cross Country

AbstractThe aim of this study was to evaluate the symmetry of anthropometry and muscle function in cross-country skiers and their association to vertical jumping power. Twenty cross-country skiers were recruited (21.7 ± 3.8 yrs, 180.6 ± 7.6 cm, 73.2 ± 7.6 kg). Anthropometric data was obtained using an iDXA scan. VO2maxwas determined using the diagonal stride technique on a ski treadmill. Bilateral functional tests for the upper and lower body were the handgrip and standing heel-rise tests. Vertical jump height and power were assessed with a counter movement jump. Percent asymmetry was calculated using a symmetry index and four absolute symmetry index levels. At a group level the upper body was more asymmetrical with regard to lean muscle mass (p = 0.022, d = 0.17) and functional strength (p = 0.019, d = 0.51) than the lower body. At an individual level the expected frequencies for absolute symmetry level indexes showed the largest deviation from zero for the heel-rise test (χ2 = 16.97, p = 0.001), while the leg lean mass deviated the least (χ2 = 0.42, p = 0.517). No relationships were observed between absolute symmetry level indexes of the lower body and counter movement jump performance (p > 0.05). As a group the skiers display a more asymmetrical upper body than lower body regarding muscle mass and strength. Interestingly at the individual level, despite symmetrical lean leg muscle mass the heel-rise test showed the largest asymmetry. This finding indicates a mismatch in muscle function for the lower body.

Arm swing and toe-touch movement effects on vertical jump performance

1992 ◽  
Vol 25 (6) ◽  
pp. 680
Author(s):  
Barry A. Munkasy ◽  
Richard N. Hinrichs
Keyword(s):  
Vertical Jump ◽  
Jump Performance ◽  
Arm Swing
Sign in / Sign up

Export Citation Format

Share Document