scholarly journals Effect of Arm Swing Direction on Forward and Backward Jump Performance Based on Biomechanical Analysis

2021 ◽  
Vol 2071 (1) ◽  
pp. 012018
Author(s):  
L M Teoh ◽  
Hamzah Sakeran ◽  
A F Salleh ◽  
M S Salim ◽  
Wan Zuki Azman Wan Muhamad ◽  
...  
Keyword(s):  
Left Knee ◽  
Biomechanical Analysis ◽  
Jump Height ◽  
Triceps Brachii ◽  
Jump Performance ◽  
Arm Swing ◽  
Jumping Performance ◽  
Triceps Brachii Muscle ◽  
Males And Females

Abstract Previous studies have examined the role of arm swing for various types of jumping technique, but none have been found to study about the gender differences in term of the role of arm swing on forward and backward jump. This study aimed to compare the jumping performance between male and female for forward and backward jump. Seven male and seven female subjects performed four trials of forward and backward jump with (FJA, BJA) and without arm swing (FJ, BJ) respectively. Qualisys Track Manager System, EEGO Sports, Visual3D and MATLAB software was used to record and analyze the performance. According to the result, the triceps brachii muscle is the most active muscle compared to other muscles during jumping. The normalized vGRF showed significant correlation with jump height when jumping forward and backward (p<0.01). The arm swing enhanced the jumping performance by increasing the jump height. Males demonstrated greater vGRF and jump height than females. When jump with arm swing, the left knee flexion angle of males increased whereas females decreased. These findings concluded there is different between males and females during jumping.

Kinematic Analysis of Vertical Jump Performances Before and After Fatigue in Basketball Players

2021 ◽  
Vol 15 (7) ◽  
pp. 2226-2228
Author(s):  
Ahmet Atli ◽  
Ali Furkan Yarar
Keyword(s):  
Kinematic Analysis ◽  
Vertical Jump ◽  
Biomechanical Analysis ◽  
Jump Height ◽  
Basketball Players ◽  
Jump Performance ◽  
Joint Injury ◽  
Before And After ◽  
Parameter Values ◽  
Vertical Jumps

Background and Study Aim: This single group pre- and post-test study aimed to examine kinematic changes in vertical jump performances before and after fatigue in basketball players. Material and Method: Ten male university student (age 23.28±1.31 years, height 181.17±6.87 cm, body weight 74.53±9.27 kg) basketball players voluntarily participated in the study. Vertical jump test was performed twice, once before fatigue and again after fatigue, and jump measurements were recorded with 2 cameras capable of shooting 240 frames per second. The vertical jumps were measured using a Smart Speed device. The recorded measurements were analyzed using a biomechanical analysis program, and the results were analyzed statistically. Each participant performed 5 resting jumps on the jump mat after warm-up, and the highest height reached was determined as the jump height. Next, the protocol for inducing fatigue was initiated without a period of rest, and the participants were asked to sprint 6x10 m, following which vertical jumps were performed 5 times without any break. The maximum value of each parameter obtained from among the 5 vertical jumps was used for analysis. The protocol for inducing fatigue was followed until the post-fatigue vertical jump parameter values were below 70% of the maximum values recorded before fatigue. Pre- and post-fatigue jump parameter values were statistically analyzed using the paired samples t-test. Results and Conclusion: Statistically significant differences were observed in knee flexion angle measurements before and after fatigue as well as in jump height measurements before and after fatigue (p<0.05). Therefore, it is believed that fatigue may be associated with a risk of knee joint injury in basketball players. Keywords: Kinematic Analysis, Vertical Jump, Performance, Fatigue, Basketball Players

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 The Effect of Arm Action on the Vertical Jump Performance in Children and Adult Females

2013 ◽  
Vol 29 (6) ◽  
pp. 655-661 ◽  
Author(s):  
Pablo Floría ◽  
Andrew J. Harrison
Keyword(s):  
Vertical Jump ◽  
Force Platform ◽  
Jump Height ◽  
Jump Performance ◽  
Arm Swing ◽  
Adult Females ◽  
Flight Height ◽  
Effect Of Age

The aim of this study was to evaluate the effect of age on the use of arm swing in the vertical jump. Counter-movement jumps with arms (CMJA) and without arms (CMJ) performed by 36 girls and 20 adult females were examined using force platform analysis. The data were analyzed to determine differences between groups and between types of jump. The analysis of the data indicated that the arm action increased the jump height in both groups, although the increase was greater in children than adults (22.6% and 18.7% respectively; P < .05). This difference in jump height was due to a combination of a greater increase of the height at take-off in children compared with adults (40.6% and 21.6% respectively; P < .05) with no differences in the increase of the flight height. This increase in height of take-off was accompanied by an increase in the distance of propulsion in CMJA compared with CMJ (0.25 m and 0.23 m respectively; P < .05). The results suggested that children take advantage of the action of the arms in vertical jump differently than adults. The children improved their jump height by increasing height at take-off whereas the adults improved by increasing the flight height.

scholarly journals Effect of Resistance Tube Exercises on Kicking Accuracy, Vertical Jump and 40-Yard Technical Test in Competitive Football Players – An Experimental Study

2014 ◽  
Vol 15 (3) ◽  
Author(s):  
Alekhya Tirumala ◽  
Basavaraj Motimath
Keyword(s):  
Test Performance ◽  
Vertical Jump ◽  
Exercise Program ◽  
Test Time ◽  
Football Players ◽  
Jump Height ◽  
Post Intervention ◽  
Jump Performance ◽  
Vertical Jump Height ◽  
Males And Females

AbstractPurpose. Kicking, jumping and agility are important skills in football. These activities require adequate lower limb strength, which can be enhanced with resistance training. The objective of the study was to evaluate the effect of resistance tube exercises on kicking accuracy, vertical jump performance and 40-yard technical test results in competitive football players. Methods. The study involved 23 competitive football players (11 males, 12 females) aged from 18-20 years recruited from three different universities in Belgaum, Karnataka, India. Back heel kick accuracy, vertical jump height and 40-yard technical test time were evaluated before and after a 2-week resistance tube exercise program. Results. Significant improvements in post-intervention kicking accuracy were found when males and females were treated as a single group (p = 0.01). Vertical jump height also showed a highly significant post-intervention improvement in the males and for the combined group of males and females (p = 0.001). The 40-yard technical test values significantly improved in the females and in the combined results for males and females (p = 0.001). Conclusions. The two-week resistance tube exercise program was found to have an effect on kicking accuracy, vertical jump height and 40-yard technical test performance in competitive football players. Resistance tube exercises can thus be included as a component of a regular strength training program for such athletes.

scholarly journals Relationship between General Jump Types and Spike Jump Performance in Elite Female and Male Volleyball Players

2021 ◽  
Vol 11 (3) ◽  
pp. 1105
Author(s):  
Philip X. Fuchs ◽  
Julia Mitteregger ◽  
Dominik Hoelbling ◽  
Hans-Joachim K. Menzel ◽  
Jeffrey W. Bell ◽  
...  
Keyword(s):  
Regression Models ◽  
Prediction Models ◽  
Performance Testing ◽  
Jump Height ◽  
Jump Performance ◽  
Arm Swing ◽  
Great Reliability ◽  
Volleyball Players ◽  
The Relationship ◽  
Squat Jumps

In performance testing, it is well-established that general jump types like squat and countermovement jumps have great reliability, but the relationship with volleyball spike jumps is unclear. The objectives of this study were to analyze the relationship between general and spike jumps and to provide improved models for predicting spike jump height by general jump performance. Thirty female and male elite volleyball players performed general and spike jumps in a randomized order. Two AMTI force plates (2000 Hz) and 13 Vicon MX cameras (250 Hz) captured kinematic and kinetic data. Correlation and stepwise-forward regression analyses were conducted at p < 0.05. Simple regression models with general jump height as the only predictor for spike jumps revealed 0.52 ≤ R2 ≤ 0.76 for all general jumps in both sexes (p < 0.05). Alternative models including rate of force development and impulse improved predictions during squat jumps from R2 = 0.76 to R2 = 0.92 (p < 0.05) in females and from R2 = 0.61 to R2 = 0.71 (p < 0.05) in males, and during countermovement jumps with arm swing from R2 = 0.52 to R2 = 0.78 (p < 0.01) in males. The findings include improved prediction models for spike jump height based on general jump performance. The derived formulas can be applied in general jump testing to improve the assessment of sport-specific spike jump performance.

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.

Possibilities and Limitations in the Biomechanical Analysis of Countermovement Jumps: A Methodological Study

1998 ◽  
Vol 14 (1) ◽  
pp. 105-117 ◽  
Author(s):  
Armin Kibele
Keyword(s):  
Force Plate ◽  
Center Of Gravity ◽  
Gravity Models ◽  
Biomechanical Analysis ◽  
Countermovement Jump ◽  
Error Sources ◽  
Jump Performance ◽  
Jumping Performance ◽  
Validation Criteria ◽  
Force Plate Data

Possibilities and limitations in the biomechanical analysis of countermovement jump performance were examined using force plate data. Four male and 4 female sport students participated in the study. Software designed to test jumping performance was used to evaluate recordings from a force plate and to compute net velocity and net displacement measures for the center of gravity. In parallel, a film analysis incorporating Dempster's center of gravity model was used for a comparison. Validity of the computed kinetic measures was evaluated with a general analysis of the major error sources including the data acquisition and numerical computations. Numerical integration procedures were found to be a reasonable tool for calculating net velocity and net displacement parameters for a more detailed analysis of athletic jumping performance. On the other hand, it appeared that Dempster-like center of gravity models can cause errors that disqualify their use as validation criteria for kinetic parameters.

scholarly journals The different role of each head of the triceps brachii muscle in elbow extension

2018 ◽  
Vol 52 (3) ◽  
pp. 201-205 ◽  
Author(s):  
Erica Kholinne ◽  
Rizki Fajar Zulkarnain ◽  
Yu Cheng Sun ◽  
SungJoon Lim ◽  
Jae-Myeung Chun ◽  
...  
Keyword(s):  
Elbow Extension ◽  
Triceps Brachii ◽  
Triceps Brachii Muscle

Gender Diversity in Computing: An Environmental Perspective

10.28945/3248 ◽  
2008 ◽  
Author(s):  
Cecille Marsh
Keyword(s):  
Gender Diversity ◽  
Household Head ◽  
Female Students ◽  
Political Factors ◽  
Female Household Head ◽  
Dominant Female ◽  
Computer Confidence ◽  
Males And Females ◽  
Research Questions

Previous research conducted by the author investigated the socio-political backgrounds of two groups of female students studying computer-related university programmes. They came from distinctly different backgrounds and were enrolled at two institutions with very different legacies. The author found that socio-political factors, in particular the role of a dominant female household head and aggressive governmental affirmative action, had a significant effect on the girls’ levels of confidence and subsequently on their decision to study computer-related courses. Based on this insight, the researcher undertook to look further into gender diversity with respect to self-perceived general computer confidence and self-perceived ability to program a computer. A sample of both female and male Information T echnology students from very similar disadvantaged socio-economic backgrounds was surveyed. The sample of 204 students was drawn from all three years of the National Diploma in Information Technology. The author considered the following research questions: (i) Do males and females studying computer-related courses have differing computer selfefficacy levels? (ii) Do males and females studying computer programming have differing attitudes towards their ability to program? (iii) Do males and females differ in their attitudes towards the programming learning environment?

Sign in / Sign up

Export Citation Format

Share Document