Biomechanical Analysis of Standing Long Jump -Elementary School`s Children-

This retrospective epidemiological study investigated the relationship between physical fitness testing and locomotive disorder screening results among elementary school children in Japan. The test and screening results of 1033 children from a single elementary school between 2016 and 2018 were examined. Multiple regression analysis was performed for each gender of children of grades third and fourth to generate receiver-operating characteristic curves. Of the 69 children with parent-identified locomotor problems, 29 (42%) had physical fitness test score of mean ± 2 SD. For the standing long jump test in fourth grade girls, the results differed significantly ( P < .001; cut-off, 127 cm) for children whose parents did (n = 7) and did not (n = 84) suspect a possible locomotive disorder. Physical fitness testing in combination with school-based screening for locomotive disorders may be useful for identifying and accurately diagnosing these disorders in children.

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A Biomechanical Analysis of the Relationship between the Joint Powers during the Standing Long Jump and Maximum Isokinetic Strength of the Lower Limb Joints*

International Journal of Sport and Health Science ◽

10.5432/ijshs.201827 ◽

2019 ◽

Vol 17 (0) ◽

pp. 13-24

Author(s):

Toshiharu Yokozawa ◽

Daisuke Kumagawa ◽

Hiroshi Arakawa ◽

Yoichi Katsumata ◽

Ryota Akagi

Keyword(s):

Lower Limb ◽

Biomechanical Analysis ◽

Isokinetic Strength ◽

Standing Long Jump ◽

Long Jump ◽

The Relationship

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Eye Color and Motor Performance in Physical Education Activities in Elementary School Children

Perceptual and Motor Skills ◽

10.2466/pms.1987.64.3.963 ◽

1987 ◽

Vol 64 (3) ◽

pp. 963-967 ◽

Cited By ~ 13

Author(s):

John Beer ◽

Paula Fleming

Keyword(s):

Elementary School ◽

Physical Education ◽

School Children ◽

Elementary School Children ◽

Older Children ◽

Motor Tasks ◽

Eye Color ◽

Standing Long Jump ◽

Long Jump ◽

Better Than

251 elementary school children in Grades 1 to 6 performed a variety of motor tasks in physical education classes to investigate whether eye color was associated with performance on the expectation that dark-eyed individuals generally perform better at reactive type tasks (boxing, hitting a baseball, defensive football) while light-eyed individuals perform better at self-paced tasks (bowling, golf, pitching baseballs). Eye color was not associated with standing-long jump, soft-ball throw, or 50-, 75-, 100-yd. dashes. Boys generally performed better than girls and older children in upper grades generally performed better than younger children in lower grades. As measured, all motor performances cannot be classified as either self-paced or reactive.

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Problem: Jump as Far as You Can

Teaching Children Mathematics ◽

10.5951/teacchilmath.20.5.0282 ◽

2013 ◽

Vol 20 (5) ◽

pp. 282-286

Author(s):

Laura Bofferding ◽

Melike Yigit

Keyword(s):

Elementary School ◽

Standing Position ◽

Standing Long Jump ◽

School Classroom ◽

Long Jump ◽

Good Problem

This month's problem examines the standing long jump, an Olympic event until 1912. Students will jump as far as they can from a standing position and measure the distance by using different units, such as cubes, feet, and inches. A good problem can capture students' curiosity and can serve many functions in the elementary school classroom: to introduce specific concepts the teacher can build on after students recognize the need for additional mathematics or to help students see where to apply already-learned concepts. We encourage teachers to use the monthly problem and suggested instructional notes in their classrooms and report solutions, strategies, reflections, and misconceptions to the journal audience.

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Inter-Limb Jump Asymmetries and Their Association with Sport-Specific Performance in Young Male and Female Swimmers

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18147324 ◽

2021 ◽

Vol 18 (14) ◽

pp. 7324

Author(s):

Max I. Phukan ◽

Rohit K. Thapa ◽

Gopal Kumar ◽

Chris Bishop ◽

Helmi Chaabene ◽

...

Keyword(s):

National Level ◽

Young Male ◽

Front Crawl ◽

Male And Female ◽

Standing Long Jump ◽

Significant Difference ◽

Specific Performance ◽

Long Jump ◽

Males And Females ◽

Level Of Agreement

This study aimed to examine inter-limb jump asymmetries and their association with sport-specific performance in young swimmers. Thirty-eight (male, n = 19; female, n = 19) regional/national level young swimmers (age: 12.3 ± 1.2 years; height: 159.6 ± 8.2 cm; body mass: 52.5 ± 9.2 kg) participated in this study. Inter-limb asymmetries were assessed for single-leg countermovement jump (SLCMJ) and single-leg standing long jump (SLSLJ). Sport-specific performance was evaluated using front crawl (i.e., 50 m and 25 m) and front crawl kick (i.e., 50 m and 25 m). The kappa coefficient revealed a “slight” level of agreement (Κ = 0.156, 0.184, and 0.197 for female, male, and all, respectively) between the direction of asymmetry for SLCMJ and SLSLJ, indicating that asymmetries rarely favored the same limb during both tests. A paired sample t-test showed a significant difference (p = 0.025) between asymmetry scores obtained in SLCMJ and SLSLJ. No significant difference was found in asymmetry scores between males and females (p = 0.099 to 0.977). Additionally, no association between asymmetry scores and sport-specific performance was observed (p > 0.05). Our findings highlight the independent nature of inter-limb asymmetries derived from SLCMJ and SLSLJ among young male and female swimmers. Further, our results suggest no association between jumping asymmetries and sport-specific performance.

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BIOMECHANICAL ANALYSIS OF THE STANDING LONG JUMP

Biomedical Engineering Applications Basis and Communications ◽

10.4015/s1016237203000286 ◽

2003 ◽

Vol 15 (05) ◽

pp. 186-192 ◽

Cited By ~ 12

Author(s):

WEN-LAN WU ◽

JIA-HROUNG WU ◽

HWAI-TING LIN ◽

GWO-JAW WANG

Keyword(s):

Knee Joint ◽

Motion Analysis ◽

Joint Angle ◽

Three Dimensional ◽

The Body ◽

Initial Angle ◽

Knee Joint Angle ◽

Standing Long Jump ◽

Long Jump ◽

Arm Motion

The purposes of the present study were to (1) investigate the effects of the arm movement and initial knee joint angle employed in standing long jump by the ground reaction force analysis and three-dimensional motion analysis; and (2) investigate how the jump performance of the female gender related to the body configuration. Thirty-four healthy adult females performed standing long jump on a force platform with full effort. Body segment and joint angles were analyzed by three-dimensional motion analysis system. Using kinetic and kinematic data, the trajectories on mass center of body, knee joint angle, magnitude of peak takeoff force, and impulse generation in preparing phase were calculated. Average standing long jump performances with free arm motion were +1.5 times above performance with restricted arm motion in both knee initial angles. The performances with knee 90° initial flexion were +1.2 times above performance with knee 45° initial flexion in free and restricted arm motions. Judging by trajectories of the center mass of body (COM), free arm motion improves jump distance by anterior displacement of the COM in starting position. The takeoff velocity with 90° knee initial angle was as much as 11% higher than in with 45° knee initial angle. However, the takeoff angles on the COM trajectory showed no significant differences between each other. It was found that starting jump from 90° bend knee relatively extended the time that the force is applied by the leg muscles. To compare the body configurations and the jumping scores, there were no significant correlations between jump scores and anthropometry data. The greater muscle mass or longer leg did not correlated well with the superior jumping performance.

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