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

Author(s):  
Sidney Grosprêtre ◽  
Pierre Ufland ◽  
Daniel Jecker

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.

2021 ◽  
pp. 1-8
Author(s):  
John R. Harry ◽  
John Krzyszkowski ◽  
Luke D. Chowning ◽  
Kristof Kipp

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.


2016 ◽  
Vol 9 (5) ◽  
pp. 115 ◽  
Author(s):  
Cengiz Taskin

<p class="apa">The purpose of this study was to determine the effect of core training program on speed, acceleration, vertical jump, and standing long jump in female soccer players. A total of 40 female soccer players volunteered to participate in this study. They were divided randomly into 1 of 2 groups: core training group (CTG; n = 20) and control group (CG; n = 20). The mean (SD) age was 19.05 ± 1.15 years, height was 160.60 ± 4.22 cm, weight was 56.45 ± 3.33 kg, and sport age was 4.50 ± 1.24 for the core training group; the mean (SD) age was 18.55 ± 0.76 years, height was 159.10 ± 3.86 cm, weight was 52.20 ± 3.60 kg, and sport age was 3.35 ± 0.75 years for the control group. Following randomization, the 2 groups did not differ significantly (p&gt;0.05) in any of the dependent variables. The subjects in the control group did not participate in the training and participated only in the pre- and posttest measurements. To evaluate the effect of core training over the functional performance, we applied a testing procedure that included measurements of speed, acceleration, vertical jump, and standing long jump. The core training group showed a 3.4%, 5.9%, 13.3%, 4.2% improvement in speed, acceleration, vertical jump, and standing long jump (respectively) (P&lt;0.05), whereas the control group did not change (P&gt;0.05). In conclusion, Core exercises were improved speed, acceleration, vertical jump, and standing long jump in 18-19 years-old female soccer players. Therefore, it is believed core training is necessary for optimal sport performance and should not be dismissed for all sport branches.</p>


Author(s):  
Marija Miletić ◽  
Hadži Saša Ilić ◽  
Miljan Jeremić ◽  
Milutin Parlić ◽  
Igor Ilić ◽  
...  

The aim of the research is to determine the effects of the arthistic gymnastics program on the Physical fitness of adolescents. The sample of participants consisted of 28 participants, males, aged 14 years ± 6 months, seventh grade of "Bubanjski Heroji" elementary school in Niš. The sample was divided into two subgroups. The experimental group (EG) consisted of 14 participants who, during the experimental period, realized the program of artistic gymnastics during the main phase of a physical education class, ten weeks in two classes of 45 minutes. The control group (CG) consisted of 14 participants who during the experimental period realized the program contents of regular physical education in the main phase of physical education. The sample of motorized measuring instruments consisted of three variables of explosive power (standing long jump, triple jump off the site and vertical jump) and three variants of sprint run (20m flat out with a flying start flat out with a flying start, 30m flat out with a flying start flat out with a flying start and 50m flat out with a flying start flat out with a flying start). The program "Statistica" 8.0 for Windows was used, for calculation of basic statistics, canonical discriminatory analysis and multivariate analysis of covariates. The results of the study showed that there are statistically significant effects of the use of the artistic gymnastics exercises in the main part of the physical education course on the Physical fitness of the adolescent of the EG at the end of the experimental period.


2018 ◽  
Vol 6 (12a) ◽  
pp. 7
Author(s):  
Songül Pektaş ◽  
Betül Akyol

The aim of this study was to investigate the effects of physical activity with music on motor development and performance in children with developmental deficiencies. The study includes twenty children with developmental deficiencies, aged between 10-15 years old. Children were classified into two groups randomly and both groups were given 1 hour of training 3 days a week for 20 weeks. Physical activity with English and Spanish verbal song was used for the first group and only physical activity for the second group. Each participant participated in shuttle, shuttle run, flexibility, standing long jump, vertical jump tests.  The fatigue parameter of children was evaluated using the Visual Analog Scale. As a result of this study, it has been shown that physical activity with music is more effective method to improve motor development and performance levels of children with developmental deficiencies.


Author(s):  
Ivan Čillík ◽  
Miriam Karperová

The aim was to find out, compare and evaluate the eficiency of take-off preparation for selected indicators of motor performance in athletes in the category of younger pupils. The monitored group consisted of 5 girls (average age 12.4 ± 0.22 year) and 4 boys (average age 12.9 ± 0.12 year) regularly participating in the training process three times a week. During 8 weeks in the racing period, take-off preparation was applied in the training pro-cess, consisting of two different batteries of take-off drills. The take-off preparation took place two to three times a week, taking into account the participation of athletes in the race. We performed the following tests to determine the eficiency of the take-off preparation to change the level of motor performance in selected indicators: 50m run, 20m cursory run, standing long jump, vertical jump with countermovement without arm swing and repeated vertical take-off drills without arm swing in 10s. We found that in the output measurement, the athletes of monitored group achieved an improvement in motor performance in tests for explosive power of lower limbs and the maximum running speed tests.


2005 ◽  
Vol 05 (02) ◽  
pp. 203-215 ◽  
Author(s):  
KUANG-YOU B. CHENG ◽  
WEN-CHIEN CHEN

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.


2017 ◽  
Vol 14 (4) ◽  
pp. 4265
Author(s):  
Serdar Eler ◽  
Nebahat Eler

The aim of this study was to determine the relation between some motoric and physiological characteristics of 13-15-year-old female volleyball players regarding their positions on the field. A total of 120 volleyball players have participated voluntarily. 30 of the participants whose mean age value was 14±0,76 were setters; 30 of them were liberoes with mean age value of 13,8±0,45; 30 of them were middle blockers with the mean age value of 14±0,79; 30 of them were hitters with mean age value of 13.52±0,68. The age, height, body weight, right-left hand gripping strength, vertical jump, throwing medicine ball, standing long jump, 30-second speed and body fat percentage measurements of the volleyball players have been performed. In evaluating the data, the One Way ANOVA has been used. No statistically significant differences have been determined between the age, weight right hand gripping strength and body fat percentage measurement results concerning the positions of the volleyball players, who participated in the study (p>0.05). On the other hand, it has been identified that there is a difference between the height, left hand gripping strength, throwing medicine ball, standing long jump, and speed values in terms of their positions (p<0.05). The results of the study could be beneficial to evaluate the motoric and physiological characteristics of the volleyball players regarding their positions in establishing teams and in preparing training programs.


2018 ◽  
Vol 7 (1) ◽  
pp. 60
Author(s):  
Atakan Caglayan

The aim of this study is to examine the effect of soccer training on natural turfs on strength, speed, power and balance characteristics in prepubertal children. Twenty-two male athletes chosen from the 12-13 age group who play soccer in the youth team of an amateur soccer club from Istanbul, Turkey volunteered to participate in our study. In the study, 30 m sprint, Y-balance, standing long jump and vertical jump tests were done as pre- and post-tests. The same training program was assigned to the players, who were separated into two groups. One group was trained on synthetic grass turf (SG) while the other group was trained on natural grass turf (NG) for eight weeks. As a result of the statistical analyses, significant improvements were observed in all parameters between pre-and post-test measurements of both SG and NG groups (p<0.05). When the developmental differences of the groups were examined, statistical improvement was found in the standing long jump parameter in favor of the group that trained on Natural Grass turf (p=0.037). In conclusion, depending on the characteristics of the soccer game, enhancements were observed on both surfaces. However, the challenge effect of natural grass turf was more effective than that of synthetic grass turf on leg strength improvement. It is considered that as a result of continuing their soccer trainings on natural grass turfs, young players can improve their performance and can avoid possible injuries.


2021 ◽  
Vol 15 (6) ◽  
pp. 1578-1582
Author(s):  
Mine Gül ◽  
Doğukan Çelik

Aim: To examine the effects of coordination applied to 8-10 years old female athletes on tennis and some motor skills. Metodology: The athletes were randomly divided into experiment and control groups by applying Dewitt-Dugan tennis test, standing long jump, vertical jump, 20m speed, T test and square test. In the study, while the control group only participated in club training for 8 weeks, 5 days a week and 60 min.and the experimental group added coordination training education. Data was collected and entered in SPSS 22.0. Results: There was a significant difference (p<0.05) in the parameters of all measurements of the experimental group in the standing long jump, vertical jump, 20m speed, t test and Dewitt-Dugan parameters and no significant change in the square test results (p>0.05). Among the final measurement values of the experimental and control groups, significant differences were found in favor of the experimental group in the values of standing long jump, vertical jump, 20m speed and Dewitt-Dugan parameters, except for the T test and the square test (p<0.05). Conclusion: It can be said that the 8-week coordination training applied to the experimental group has a positive effect on the motor characteristics and tennis skill, and specific coordination movements added to each unit training can be beneficial for the athletes. Keywords:Racket Sports, coordination, skill development, training, drills.


Sign in / Sign up

Export Citation Format

Share Document