• Journal of the Korean Applied Science and Technology
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• v.37 no.2
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• pp.224-231
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• 2020

The purpose of this study was to analyze the effect of ankle joint taping treatment on lower extremity joint and center of pressure(COP) factors during the Uchi-mata. Twenty college judo athletes (age, 20.9 ± 0.8 years; height, 168.6 ± 7.4cm; weight, 73.5 ± 11.6kg; body mass index, 25.7 ± 2.6kg/㎡) participated, and two types before and after ankle joint taping treatment when the during the Uchi-mata was exhibited under conditions, the angle and COP factors of the support leg joints were analyzed to show the following results. At the time of E2 (t = 2.411, p = .027) E4 (t = 2.388, p = .029), the ankle joint angle was statistically less after the treatment than before the taping treatment, and E2 (t = -2.343, p = .032) At E3 (t = -4.531, p = .000), the angle of the hip joint was statistically large. And after the ankle joint taping treatment, the medial/lateral COP movement after the ankle joint taping treatment was statistically large in the P3 phase of throwing the opponent (t = 2.670, p = .016), and the anterior/posterior COP movement showed a statistically small number in the P1 phase where the opponent was tilted (t = 2.846, p = .011). Therefore, it was suggested that judo athletes who use thighs as a special technique should be used considering the movement function of the support joint and the range of movement of the COP caused by tapping of the ankle joint.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.4
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• pp.2527-2536
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• 2015

This study of the data of the high school judo player is subject to induction leader leadership athletes to analyze the impact on the player satisfaction and performance - a man of 290 people 121 people (41.7%), female 169 people (58.3%) was used as a target sample of the study. Behavioral training and instruction to improve player satisfaction for the leadership of the induction leadership, democratic behavior, social support behavior, reward positive behaviors, and configure the survey on the leaders of the overall leadership behavior. The results showed that leadership is influencing the player satisfaction, appeared to reap good results in performance enhancement, the leader of the social support behavior, influenced by the order of the overall behavior of the leader, the higher the better player satisfaction will reap the results. In addition, the director of leadership training and instruction of the leaders in the impact on the play ability behavior, democratic behavior, social support act, the overall behavior was found to affect the performances. Therefore, if the progress is erected lead dozens of leaders exercise planning and career planning under an agreement rather than a coercive players and make a lot of good results to enhance the player experience and improve performances.

• Korean Journal of Applied Biomechanics
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• v.13 no.1
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• pp.73-94
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• 2003

The purpose of this investigation was to analyze A kinematic analysis of the Kuzushi-arm motion when performing Morote-Seoinage in judo who was 5 females university representative judokas of light weight category in judo, and filmed on video cameras(60field/s). The data of this study digitizied by KWON3D 2.1 program computed the average and standard deviation calculated individual 5 trials with Programing Lab view 6i. From the data analysis & discussion, the following conclusions were drawn : 1) distance variable of attacking hand arm in kuzushi motion Left right(X direction) displacement variable was all of A, B, C pattern with moving left to right and leaning. Strip of displacement variable was ordo. to C(55.6cm), A(53.3cm), B(43.9cm) pattern, C pattern largely leaned to left Front Rear(Y direction) displacement variable was different A($131.3cm{\pm}3.1cm$), B($128.7{\pm}4.0cm$) and C(111.0cm) on ready position, 3 pattern leaned to rear direction. Strip of displacement was order to B(43.4cm), A(41.1cm) and C pattern(28.3cm). Up down(Z direction) displacement variable was all of A, B, C pattern leaned to up in the Kuzushi-phase and leaned to down in the Kake-phase. Strip of displacement was order to A(83.9cm), B(80.4cm), C pattern(71.9cm). 2) Shoulder joint angle variable Flexion and extension Ready position' angle was A($138.3{\pm}4.9^{\circ}$), B($142.9{\pm}3.7^{\circ}$) and C($164.5^{\circ}$) pattern, strip of flexion extension was order to C($80.9^{\circ}$), A($79.9^{\circ}$) and B($39.0^{\circ}$) pattern, greatly C pattern had largely angle change. Adduction and abduction : B and C pattern's angle change were adduction and abduction in the Kuzushi-phase after adduction in the Kake phase, A pattern's angle change was abduction in the Kuzushi-phase after adduction in the Kake phase. internal and external rotation : 3 pattern were internal rotation in the Tsukuri phase and external rotation in the Kake phase. After B and C pattern were external rotation and A pattern was internal rotation. 3) Elbow joint angle variable Flexion and extension 3 pattern's ready position angle were A($142.0{\pm}4.4^{\circ}$), B($123.5{\pm}5.5^{\circ}$) and C($105.5^{\circ}$) and flexion. Strip of flexion extension were order to A($57.9^{\circ}$), C($34.6^{\circ}$) and B($25.2^{\circ}$) pattern.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2001.03a
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• pp.62-63
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• 2001

• Journal of International Academy of Physical Therapy Research
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• v.1 no.1
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• pp.58-64
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• 2010

The purpose of this study was to investigate the distribution of trigger points(TrPs) on athletes with various sporting background. To achieve the purpose, a study was carried out through a survey from 180 athletes involved in 6 selected sports at Yong-In University. Selected sports included Judo, Taekwondo, Kendo, Ssi-reum(Korean traditional wrestling), Boxing, and Golf. An interview type survey and physical examination were conducted with each thirty athletes from each of the selected sports groups. Technical statistic(SPSS 15.0) was used to analyze the distribution of TrPs on these athletes. The most common TrPs observed in muscles of Trapezius, Quadratus Lumborum, Quadriceps in Judo. In Taekwondo, it was on the trapezius and triceps surae. Kendo athletes had TrPs at sites of trapezius, brachioradialis and triceps surae. Ssirem athletes were found to have TrPs on trapezius, deltoid and quadrates lumborum. In boxers, TrPs appearing at trapezius and brachioradialis were observed. Finally, Golf players were seen to have TrPs at trapezius, quadrates lumborum and brachioradialis. Hence, the analysis shows that there are significant differences of the distribution of TrPs according to the different sport items of the athlete.

• Journal of the Korean Society of School Health
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• v.33 no.1
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• pp.19-27
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• 2020

Purpose: This study is to confirm the effectiveness of the character education program applied to high school students. Methods: The study used a one-group pretest-posttest design with a sample of students aged 15 (n=263, male), the members of eleven 10th grade classes in a high school in Seoul, from March 1st, 2019 to February 28th, 2020. In order to confirm the effectiveness of the program, the Korean Educational Development Institute (KEDI) character questionnaire was used, and a paired t-test was performed using IBM SPSS statistics 25 statistical program. Results: In this study, character levels were significantly higher after the character education program than before. The pre-post differences in character levels were measured for Sincerity (t=5.63, p<.001), Self-respect (t=2.78, p=.011), Decorum (t=3.97, p<.001), Responsibility (t=5.35, p<.001), Consideration and communication (t=5.89, p<.001), Citizenship (t=5.28, p=p<.001), Self-regulation (t=6.25, p<.001), Justice (t=2.62, p=.011), Wisdom (t=5.75, p<.001), and Honesty and courage (t=7.11, p<.001). Conclusion: In this study, and were found to be significantly related to improvements in character.

• Biomedical Science Letters
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• v.18 no.1
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• pp.22-28
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• 2012

The purpose of this study was to investigate the effect of soybean peptide on antioxidant enzymes, cortisol hormone and inflammatory cytokine levels. 19 high school male judo athletes participated in the experiments. They were randomly divided into two groups, one group took soybean peptide (S-peptide, n=10) 4 g a day for 4 weeks and the other group placebo (placebo group, n=9) for the same time. Blood samples were collected before intake, after 2 weeks intake and 4 weeks intake and these were analyzed for total antioxidant status (TAS), catalase (CAT), levels of cortisol hormone, tumor necrosis factor-alpha (TNF-${\alpha}$) and interleukin-6 (IL-6). As a result, the S-peptide group was significantly increased in TAS and CAT (P<0.05). The malondialdehyde (MDA) levels showed decrease after soybean peptide intake but there was no significant difference. In the levels of plasma cortisol which reflect stress status, there was significantly decreased in the S-peptide and placebo group after 4 weeks (P<0.05). There were significant decreases of TNF-${\alpha}$ and IL-6 after 4 weeks in S-peptide group (P<0.05). These results suggest that the intake of soybean peptide can activate antioxidant defenses and decrease exercise-induced oxidative stress.

• Journal of the Korean Society of Clothing and Textiles
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• v.31 no.1 s.160
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• pp.44-56
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• 2007

The aim of this study is to provide fundamental data on the development of dress shirts pattern appropriate for the body types of athletes. The research subjects are 257 athletes from wrestling, bodybuilding, weight lifting, Judo, canoe, rowing. In regards to the category used in the measurement of bust somatotype, there are 48 types directly measured, 4 types indirectly measured, 7 types calculated and 1 bodyweight of type, making it 60 categories in total. The bust somatotype of a sports athlete and general person were compared together and after examining the characteristics of the bust somatotype, the somatotype of sports athlete was divided according to drop. The results of the study are as follows: 1. Questionnaire Results of the questionnaire showed that 63.4% of the respondents chose dress shirt as the most uncomfortable upper garment for athletes. And as for the result of the most uncomfortable body part turned out to be 'the neck is tight'. 2. Somatotype Analysis Results of direct, indirect measurement and the average somatotype of 97 National standard physique were compared. The characteristics of somatotype of athletes with well-developed upper body are that they are taller and have longer upper body and arms than the general person. And also the width of the trunk is wider, the girth bigger and the waist measure relatively slimmer. Looking at sports by category, it we could see that wrestlers were the largest neck parameter and width. Bodybuilders were the largest body parts for most categories. Weight lifting and Judo athletes were the largest waist and buttock. Canoe and rowing athletes were the largest height and arm parts. Dividing the somatotype of athletes according to drop, 72.8% of the research group belonged to the body type that resembled the letter Y.

• Korean Journal of Applied Biomechanics
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• v.20 no.4
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• pp.355-364
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• 2010

The purpose of this study was to investigate the kinematical analysis of T-stop motion by inline skate rolling speed. Six subjects were participated in the experiment(age: $35.0{\pm}3.3$ yrs, weight: $72.70{\pm}5.1\;kg$, height: $176.30{\pm}3.1\;cm$, career: $10.00{\pm}2.5$ yrs). The study method adopted 3-dimensional analysis and 2 cameras for filming to analyze the required displacement of center of mass, displacement of right and left hip joint, displacement of right and left knee joint, displacement of trunk tilt using by APAS. The results were as follows; In anterior-posterior displacement of COM, the faster rolling speed, the longer displacement at phase 2. In vertical displacement of COM, the faster rolling speed, the lower displacement. In medial-lateral displacement of COM, there was no significant on rolling speed. In angular displacement of right thigh segment, the faster rolling speed, the bigger displacement in X and Z axis. In angular displacement of left thigh segment, the faster rolling speed, the lower displacement in X axis. In angular displacement of right shank segment, the faster rolling speed, the bigger displacement in Z axis. In angular displacement of left shank segment, the faster rolling speed, the bigger displacement in X and Y axis. In angular displacement of trunk segment, the faster rolling speed, the bigger displacement in Z axis.

• Korean Journal of Applied Biomechanics
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• v.12 no.2
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• pp.143-157
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• 2002

This study was to analyze the kinematic variables when the subjects performing Uchi-mata(inner thigh reaping throw) by Kumi-kata types((How to grasp A or B?) and two different opponent's height in Judo. Kinematic variables were temporal, posture. Data analysis was collective comparison of two-way ANOVA, t-test by type A&B and two different opponent's height. There were significant difference of Kumi-kata types(p<.05) in the time elapsed on Kake phase(KP : throwing phase) and hip, knee, ankle-angle of the attacking foot in the 1st stage of KP and knee, ankle-angle of the attacking foot and hip, knee ankle-angle of the supporting foot in the 2nd stage of KP. There were significant difference of two opponent's(p<.05) in the time elapsed on KP and hip-angle of the supporting foot in 1st stage of KP. Therefore, the interaction effect(p<.05) were in the time elapsed on KP and hip-angle of the supporting foot in the 2nd stage of KP. So, It could be suggested that Judoka hold on the part-behind neck lapel(type A) at the sleeve with the other of Judogi jacked when opponent's height was short. Because the time elapsed on KP of type B was not so fast as type A(p<.05) during performed Uchi-mata, and also the bigger hip-angle of the supporting foot in the 2nd stage of KP grew, the faster the time elapsed on KP became.