scholarly journals Relationship between Jump Distance for Running Long Jump and Physical Characteristics of Male Students in PE Class

2021 ◽  
Vol 11 (02) ◽  
pp. 232-238
Author(s):  
Akihiro Azuma ◽  
Kazuhiro Matsui
Keyword(s):  
Physical Characteristics ◽  
Male Students ◽  
Jump Distance ◽  
Long Jump

Phase-Specific Force and Time Predictors of Standing Long Jump Distance

2021 ◽  
pp. 1-8
Author(s):  
John R. Harry ◽  
John Krzyszkowski ◽  
Luke D. Chowning ◽  
Kristof Kipp
Keyword(s):  
National Collegiate Athletic Association ◽  
Reaction Force ◽  
Vertical Force ◽  
Jump Height ◽  
Strength Index ◽  
Phase Duration ◽  
Standing Long Jump ◽  
Jump Distance ◽  
Long Jump ◽  
Force Time

This study sought to identify potential predictors of standing long jump (SLJ) performance using force–time strategy metrics within the unloading, eccentric yielding, eccentric braking, and concentric phases. Fifteen National Collegiate Athletic Association division 1 male soccer players (19 [1] y, 1.81 [0.94] m, 80.3 [22.4] kg) performed 3 maximum-effort SLJs, while 3-dimensional ground reaction force (GRF) data were obtained. Regularized regression models were used to investigate associations between force–time strategy metrics and 2 metrics of SLJ performance (ie, jump distance and modified reactive strength index). Jump height and eccentric yielding time were the only predictors of jump distance that also demonstrated large correlations to jump distance. Anterior–posterior unloading yank, average concentric vertical force, and concentric phase duration were the only predictors of modified reactive strength index that also demonstrated large correlations to modified reactive strength index. To maximize SLJ distance in high-level soccer athletes, human performance practitioners could design interventions to drive changes in strategy to increase jump height and decrease eccentric yielding time. To improve SLJ explosiveness, interventions to drive changes in unloading and concentric force application and decrease concentric time could be emphasized. Importantly, unique variable combinations can be targeted when training for SLJ distance and explosiveness adaptations.

scholarly journals STUDY OF SPORT TALENT IN MALE STUDENTS OF CLASS VII SMP NEGERI 2 JATEN

PHEDHERAL ◽  
2021 ◽  
Vol 18 (1) ◽  
pp. 47
Author(s):  
Muh Arif Dwi Saputro ◽  
Sunardi Sunardi ◽  
Ahmad Septiandika Adirahma
Keyword(s):  
Computer Software ◽  
Male Students ◽  
Tennis Ball ◽  
Test Items ◽  
Tests And Measurements ◽  
Sitting Height ◽  
Multi Stage ◽  
Analysis Technique ◽  
Long Jump ◽  
Academic Year

<p><em>The purpose of this study was to determine the sporting talent in male students of class VII SMP Negeri 2 Jaten the academic year 2019/2020. This research uses a descriptive method. This study wanted to describe giftedness in male students of class VII SMP Negeri 2 Jaten. The population and sample in this study were male students of class VII SMP Negeri 2 Jaten in the academic year 2019/2020. The subjects in this study were male students of grade VII SMP Negeri 2 Jaten in the academic year 2019/2020 as many as 100 students. Data collection techniques in this study used tests and measurements of the sports search model which consisted of 10 test items, namely: height, sitting height, body weight, length of the two arms, throwing a tennis ball, throwing basketball, jumping upright, running agility. , sprint 40 meters and run multi-stage. The data analysis technique used computer software "sport search" and modified sport search. The results of this study show that the sports talents possessed by male students in grade VII of SMP Negeri 2 Jaten for the 2019/2020 academic year which consisted of several sports groups, namely, 37 students (37.00%) of sprint, long running, 5 students (5.00%), throwing a javelin as much as 1 student (1.00%), throwing bullets by 1 student (1.00%), pole jumping by 1 student (1.00%), long jump and multiply 7 students (7.00%), high jumping as many as 31 students (31.00%), archery by 2 students (2.00%), gymnastics as many as 15 students (15.00%). Team / Ball: soccer as many as 32 students (32.00%), futsal as many as 1 student (1.00%), volleyball as many as 44 students (44.00%), handball as many as 23 students (23.00%) . Combative: karate as many as 26 students (26.00%), taekwondo as many as 23 students (23.00%), pencak silat as many as 51 students (51.00%). Racket / Stick: The conclusion of this study is that from a total of 100 students who took the giftedness test sport search, the classification of giftedness level was determined. There were 2 students who were talented to become athletes, 16 students were talented enough to become athletes, 44 students were less talented to become athletes and 38 students were not gifted as athletes.</em></p>

A Kinematic Profile of the Approach Run of Novice Long Jumpers

1995 ◽  
Vol 11 (2) ◽  
pp. 142-162 ◽  
Author(s):  
William P. Berg ◽  
Nancy L. Greer
Keyword(s):  
Important Determinant ◽  
Jump Performance ◽  
Similar Role ◽  
Jump Distance ◽  
Effective Training ◽  
Long Jump

This study determined the kinematics of the final 11 steps of the long jump approach (LJA) for 19 novice long jumpers. Associations between takeoff accuracy and jump performance were identified, and comparisons of LJA kinematics were made with previous investigations of horizontal jumps performed by expert long jumpers. Results indicated that absolute takeoff error was not an important determinant of jump distance for the novice long jumpers. Additionally, novice jumpers differed from expert jumpers in terms of the relationships among specific variables. The results suggest that kinematic variables that appear to be causally related to jump performance in experts may not piay a similar role in the performance of novices. Hypotheses for these differences were offered. Differences between the LJAs of novice and expert long jumpers warrant further investigation, so that their origins can be determined and used to develop effective training regimes.

Effect of take-off from prosthetic versus intact limb on transtibial amputee long jump technique

2012 ◽  
Vol 36 (3) ◽  
pp. 297-305 ◽  
Author(s):  
L Nolan ◽  
Benjamin L Patritti ◽  
Kathy J Simpson
Keyword(s):  
Vertical Velocity ◽  
Sagittal Plane ◽  
Similar Amount ◽  
Prosthetic Limb ◽  
Approach Speed ◽  
Jump Distance ◽  
Long Jump ◽  
Correct Technique ◽  
Nonparametric Comparison ◽  
Intact Limb

Background: Increasing numbers of long jumpers with lower limb amputations choose to take off from their prosthetic limb. It is not yet known what difference in technique, if any, this requires, or which is more advantageous. Objectives: To investigate kinematic differences in long jump technique in athletes with a unilateral transtibial ampution (TT) who take off from their prosthetic limb versus those who take off from their intact limb. Study Design: Naturalistic, field-based, observational; independent group, nonparametric comparison. Methods: Two-dimensional sagittal plane kinematic analysis was performed on all athletes competing in the men’s Paralympic TT long jump finals. Five athletes took off from their prosthetic limb (TOprosth) and five from their intact limb (TOintact). Results: No differences were seen between the two groups in terms of jump distance, approach speed or vertical velocity at touch down. While in contact with the take-off board, the two groups gained a similar amount of vertical velocity. However, the TOprosth group appeared to conserve horizontal velocity by using the prosthesis as a ‘springboard’, minimizing the large hip and knee range of motion displayed by the TOintact group and athletes in previous studies. Conclusions: While differences in technique were observed, no difference was found for jump distance. Clinical relevance Athletes choosing to take-off from their prosthetic limb in long jump require a different technique to those who choose to take-off from their intact limb. Knowledge of the correct technique can help reduce excessive training which can lead to injury, particularly in the residual limb.

Is Increased Residual Shank Length a Competitive Advantage for Elite Transtibial Amputee Long Jumpers?

2011 ◽  
Vol 28 (3) ◽  
pp. 267-276 ◽  
Author(s):  
Lee Nolan ◽  
Benjamin L. Patritti ◽  
Laura Stana ◽  
Sean M. Tweedy
Keyword(s):  
Vertical Velocity ◽  
Important Determinant ◽  
Elite Athletes ◽  
Center Of Mass ◽  
Transtibial Amputation ◽  
Jump Performance ◽  
Performance Variables ◽  
Jump Distance ◽  
Long Jump ◽  
The Relationship

The purpose of this study was to evaluate the extent to which residual shank length affects long jump performance of elite athletes with a unilateral transtibial amputation. Sixteen elite, male, long jumpers with a transtibial amputation were videoed while competing in major championships (World Championships 1998, 2002 and Paralympic Games, 2004). The approach, take-off, and landing of each athlete’s best jump was digitized to determine residual and intact shank lengths, jump distance, and horizontal and vertical velocity of center of mass at touchdown. Residual shank length ranged from 15 cm to 38 cm. There were weak, nonsignificant relationships between residual shank length and (a) distance jumped (r = 0.30), (b) horizontal velocity (r = 0.31), and vertical velocity (r = 0.05). Based on these results, residual shank length is not an important determinant of long jump performance, and it is therefore appropriate that all long jumpers with transtibial amputation compete in the same class. The relationship between residual shank length and key performance variables was stronger among athletes that jumped off their prosthetic leg (N = 5), and although this result must be interpreted cautiously, it indicates the need for further research.

OPTIMAL STANDING LONG JUMP SIMULATION FROM DIFFERENT STARTING POSTURES

2005 ◽  
Vol 05 (02) ◽  
pp. 203-215 ◽  
Author(s):  
KUANG-YOU B. CHENG ◽  
WEN-CHIEN CHEN
Keyword(s):  
Center Of Mass ◽  
Joint Torque ◽  
Horizontal Distance ◽  
Human Body Model ◽  
Body Model ◽  
Standing Long Jump ◽  
Jump Distance ◽  
Torque Generation ◽  
Long Jump ◽  
Simulation Results

A planar 4-segment human body model is used to simulate and study the effects of starting posture on standing long jumping performance. The model consists of frictionless hinge joints and is driven by joint torque actuators. The four segments represent feet, shanks, thighs, and trunk with head and arms. Movement simulations start from three different postures: high squat, squat, and low squat. The control variables are the joint torque activation levels and takeoff time. The objective function is the maximum horizontal distance from the toe point at takeoff to the center of mass (c.m.) position at landing. Optimal simulation results agree reasonably well with measurements. Different from previous high jump simulation study, slight dependence of initial posture on jump distance is found. Longer jump distance from a higher initial posture is probably due to greater range of countermovement that results in larger extension joint torque generation.

scholarly journals Comparative Overview of Functional and Motor Preparedness of First- and Second-Year College Students

2019 ◽  
Vol 19 (1) ◽  
pp. 14-22
Author(s):  
M. G. Barylko
Keyword(s):  
College Students ◽  
Discriminant Function ◽  
Male Students ◽  
First Year ◽  
Practical Application ◽  
Study Objective ◽  
Standing Long Jump ◽  
Male College ◽  
Long Jump ◽  
Second Year

The study objective is to determine the possibility of recognizing the state of functional and motor preparedness of first- and second-year male college students, using multidimensional statistical methods. Materials and methods. The study involved first-year (n = 10) and second-year (n = 10) male students of Novomoskovsk College of Dnipro State Agrarian and Economic University. To achieve the objective set, the study relied on the following research methods: analysis of scientific and methodological literature, pedagogical testing, and methods of mathematical statistics for processing research results. Results. For practical application of discriminant analysis results, unstandardized canonical discriminant function coefficients are used. The probability of a case belonging to the predicted group is calculated based on substitution of values of variables for the corresponding case into the discriminant function. A comparison of the obtained results with centroid values makes it possible to determine the group the result belongs to. Conclusions. Discriminant function structure coefficients are most closely related to variables that characterize functional preparedness (No. 3, 4, 5 “Serkin’s test”), coordination and strength preparedness (No. 15 “Evaluation of perception of motion strength parameters, 1/3”, No. 8 “Arms’ bending and straightening in a hanging position”, 9 “Bent-arm hang”, 10 “Standing long jump”). The division of boys into groups by functional and motor preparedness is carried out on the basis of unstandardized coefficients.

scholarly journals Fitness Ability, Skills and Body Measurements for Selecting Elite Handball Players in Jordan

2013 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Taiysir Mansi ◽  
Abedesalam Jaber ◽  
Rami Halaweh
Keyword(s):  
Standard Deviation ◽  
Arithmetic Mean ◽  
Male Students ◽  
Body Measurements ◽  
Explosive Strength ◽  
Standing Long Jump ◽  
Percentile Rank ◽  
Long Jump ◽  
Physical Tests ◽  
Physical Abilities

The purpose of the study is to construct standards for some fitness ability, skills and body measurements for selecting talented boys on handball centers in Jordan. The study samples were randomly selected and consisted of 152 male students (mean age = 15,82). Four physical tests were used: Speed (Sprint dash: 30-m), legs explosive strength (standing long jump), arms explosive strength (ball throw), flexibility, skills of passing and receiving coordination, and zig zag dribbling. Body measurements: height, weight and breadth of the palm and arms width were taken. Data were analyzed using arithmetic mean, standard deviation, percentage, percentile rank and coefficient of warping degree (means). The results revealed that physical abilities, skill abilities, and body and anthropometry measurements were not high. The research recommended that there is a need to adopt and use the standards produced by this study. Such standards would help in selecting handball players in Jordan. 

scholarly journals The adaptation to standing long jump distance in parkour is performed by the modulation of specific variables prior and during take-off

2017 ◽  
pp. 27-37
Author(s):  
Sidney Grosprêtre ◽  
Pierre Ufland ◽  
Daniel Jecker
Keyword(s):  
Center Of Pressure ◽  
Vertical Jump ◽  
Standing Long Jump ◽  
Jump Distance ◽  
Long Jump ◽  
Reaction Forces ◽  
Similar Distance ◽  
Force Time ◽  
Jump Trajectory ◽  
Curvilinear Trajectory

The present study aimed at investigating different variables that can be manipulated prior to and during take-off, to execute a specific standing long jump (SLJ) distance, according to jump expertise in parkour practitioners (= traceurs). Fourteen healthy young traceurs were included and separated into two groups: beginners (BEG) and experts (EXP). Firstly, classical vertical jump battery was used to characterize participants arm use and leg efficiency. Secondly, standing long jump (SLJ) performances were analyzed at four distances: 70, 80, 90, and 100% of each participant’s maximal SLJ distance. The force-time curves of the ground reaction forces (GRF) and the center of pressure (CoP) trajectory were measured with a force platform during the jump impulses. Take-off speed, angle and jump trajectory were estimated. For all of the participants, take-off speed and angle, power output, and vertical GRF during jump preparation (counter movement) varied with distance. The EXP group exhibited greater backward CoP excursion, greater arm participation, greater take-off velocity and a greater modulation of take-off angle than BEG group. When comparing jumps of similar distance, EXP exhibited a more curvilinear trajectory with a higher peak than BEG. To conclude, different motor strategies can be adopted based on the jump distance, and these strategies can evolve as parkour experience increases.

scholarly journals Pengaruh Latihan Lompat Kotak Kardus terhadap Hasil Lompat Jauh Gaya Jongkok Siswa Putra Kelas V SD Negeri 152 Palembang

1970 ◽  
Vol 5 (2) ◽  
pp. 142-148
Author(s):  
Muhsana El Cintami Lanos
Keyword(s):  
Male Students ◽  
Control Group ◽  
Test Statistics ◽  
Test Results ◽  
Final Test ◽  
Class V ◽  
Jump Training ◽  
Long Jump ◽  
Experimental Group ◽  
Initial Jump

The aim of this study was to determine the effect of cardboard box jumping exercises on squat-style long jump results in male students of SD Negeri 152 Palembang. The method in this study is pure experiment (experimental tru). Data obtained from test results were analyzed with data normality, homogeneity tests, and hypothesis testing using t test statistics. The results of data analysis and discussion can be concluded that: the average initial jump pretest squat style test in the experimental group students was 2.23, while the control group was 2.24 while the average final test (posttest) squat style long jump on the experimental group students were 2.51 while the control group was 2.27 and the results of testing the hypotheses obtained tcount> ttable or 17.5> 1.68 this meant that the hypothesis that there was an influence of the cardboard box jump training on the results of the long jump in class V male students The truth of Palembang 152 Public Elementary School is acceptable

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