• Journal of the Korean Applied Science and Technology
• /
• v.36 no.2
• /
• pp.507-523
• /
• 2019

This purpose of study was to Analysis on Location and Service Factors Affecting the Management and Use of Judo Gym. This study aims at providing fundamental data and information on Judo coach by studying what effects of location and use factor on trainee satisfaction. The survey was done through 350 copies and excluding 11 copies ran an analysis on the remaining 339(96.8%) copies. After question investigating the data which is collected used IBM SPSS statistics 21 program, frequency analysis, Exploratory factor analysis, Cronbach's ${\alpha}$, correlation analysis, multiple regression. The result of this study were as follows. First, management, location, coach, trainee value, facility, communication in Judo gym location and use factors showed (+) effects on trainee satisfaction. Second, Program operation, Gym quit use, Whether or not to insure in management factor showed (+) effects on trainee satisfaction. Third, Coach credibility in coach factor showed (+) effects on trainee satisfaction. Forth, Member communication in communication factor showed (+) effects on trainee satisfaction. Fifth, Wholesome leisure, Athletic ability improving in trainee value factor showed (+) effects on trainee satisfaction. Sixth, main facility level, additional facility level in facility factor showed (+) effects on trainee satisfaction. Seventh, Visibility in location factor showed (+) effects on trainee satisfaction. And location type(station area, residential district, commercial area) of Judo gym showed (+) effect on management, trainee value, location, communication, facility.

• Korean Journal of Applied Biomechanics
• /
• v.17 no.4
• /
• pp.209-219
• /
• 2007

The purpose of this study was to analyze biomechanical mechanism (posture, moment of back joint, EMG) when athletes (Judo, Ssirum) and lay people lifted a load according to two different lift methods; backlift and leglift. The number of subjects was 12; 8 athletes (4 for Judo, 4 for Ssirum) and 4 lay people. We recorded a lift motion in backlift and leglift using 7 real time infrared cameras (vicon) and analyzed EMG pattern of major muscles for a lift (lattisimus dorsi, erector spinae, biceps femoris). In a backlift Judo players showed a biggest range of back flexion and extension motion and lay people flexed more than other groups at phase 2 in which an interaction between groups and events was statistically significant (p=.024). In a leglift Ssirum players more flexed their back in a barbell lift and there was a statistical significance (p=.021) between groups and events. For moment of back joints, 1) in a backlift a larger loading on back joints in all three groups at phase 2 when lifting down a barbell, 2) in a leglift a larger loading on back joints when lifting down a barbell in two athlete groups but a larger loading when lifting up a barbell in lay people group, and all groups did not show any statistical significance. For EMG, right lattisimus dorsi muscle in a backlift was statistical significant (p=.006) in an interaction between groups and phase but left lattisimus dorsi muscle was insignicant, and there was not any significance in a leglift. Generally atheletes (Judo and Ssirum) used more their muscles of lower extremity in lifting up and down and lay people did more their ones of upper extremity.

• Korean Journal of Applied Biomechanics
• /
• v.16 no.2
• /
• pp.45-53
• /
• 2006

The purpose of this study was to analyze exercise related mechanical variables according to performance levels and Kumi-kata types in elite judo players (G1) and non-elite judo players, namely university players (G2). To achieve this purpose, three players in G1 whose main special skill was Morote-Seoinage and three university judo players(G2) was selected as comparative group. Then they were examined for distinguishing A and B types of Kumi-kata. Analyzed variables were the time required to show skills, knee degree, elbow degree. After analysing this study, conclusions were derived as follows. 1. In total necessary time of showing skills according to group of Kumi-kata type, G2 was longer than G1 in both A type (20.9%) and B type (23.7%). In necessary time of phase, in only 3P, G1 was shorter than G2 in A type (50%) and B type (75%). There was no difference in time required of 1P and 2P according to Kumi-kata type of group and in only 3P, B type was shorter than A type in both B type (75%) of G1 and B type (50%) of G2 2 There was no difference in elbow degree of offensive arm according to group of Kumi-kata type, however in A and B types, G1 could use skills by extending in kake phase, but G2 could use skills by bending. Elbow degree of offensive arm according to Kumi-kata type of group showed difference in E1. and F2 of G1. A and B types of G1 extended elbow degree in Kake phase, but G2 bent elbow degree so exercise program which could movable range extensively in Kake phase is needed.

• Journal of Korean Physical Therapy Science
• /
• v.30 no.4
• /
• pp.71-81
• /
• 2023

Background: The purpose of this study was to comparison and correlation between physical and psychological functions by gender in Judo athletes. Both the physical and psychological factors of athletes are important as factors influencing athletic performance, but there are few papers that have compared and studied the correlation between physical and psychological functions of judo players. Design: Cross sectional study Methods: The 134 participants; high school students, college students, and team players. They used physical functions to measure such as self-describing KOOS, FAOS, ODI, POMS, SCAT, ASMQ, and ACSI-28. Results: There was a significant difference in the physical function according to gender in the KOOS, but no significant difference in the FAOS and ODI. For psychological function, there was a significant difference in the vitality item in the POMS, and a significant difference in the body management, training management, life management, and unique behavior management items in the ASMQ. In the ACSI-28, there were significant differences in coping with adversity, stress repayment, concentration, freedom to worry about matches, and self-coaching behavior items. Physical function and psychological function showed a significant negative correlation. The POMS showed a negative correlation between the ASMQ and ACSI-28, whereas the SCAT showed a positive correlation. Conclusion: The results of this study are expected to be used as a basic data for sports training by gender of Judo athletes.

• Journal of Industrial Convergence
• /
• v.22 no.3
• /
• pp.27-37
• /
• 2024

The purpose of this study was to analyze the impact of community characteristics of induced participants on values, attitudes, and behaviors (VAB) and intention to continue participation. Convenience sampling (n=192) was used to sample the research subjects, and confirmatory factor analysis, correlation analysis, and structural equation modeling were conducted using SPSS 26.0 and AMOS 26.0. The results of this study are as follows. 1) Among the community attributes of the participants, reputation, enjoyment, interaction, and social connection had a significant impact. 2) Value-Attitude-Behavior (VAB) was found to have a significant hierarchical impact. 3) Behavioral intention was found to have a significant effect on continuation intention. Through this, the Judo community needs to build a participant-centered organizational culture that can create positive value in order to increase participants' participation in Judo.

• Korean Journal of Applied Biomechanics
• /
• v.12 no.2
• /
• pp.131-142
• /
• 2002

The purpose of this study was to analyze kinematic variables of a Mae-ukemi (forward breakfall :MU) in Judo through 3-D image analysis with five Judoka with over 2 years' career (2nd dan, 3rd dan). The kinematic variables include posture, and distance variables; the mean values and the standard deviations for each variable were obtained to analyze kinematic variables of a MU in Judo. From the data analysis and discussion, the following conclusions were drawn : 1) Posture variables : The angles of wrists during right before Mae-ukemi (RBU) were extended from the just MU position(MUP) and flexed from in the right after MU(RAU), and there was a difference in the displacement between the angles of the right and left wrists. The angles of elbows were flexed in the ready position from in the RAU. The angles of ankles were flexed from the ready position to that down position, extended from the down position to that transition, and flexed from the transition positiont to that RAU. 2) Distance variables : The distance height between the mat and shoulders in the RBU(32.2cm) to in the MUP(18.3cm) and in the RAU(20.5cm). during that height between the mat and hips in the RBU(48.0cm) to in the MUP(23.4cm), and in the RAU(30.6cm).

• 대한족부족관절학회:학술대회논문집
• /
• 2009.04a
• /
• pp.13-13
• /
• 2009

• Clinics in Shoulder and Elbow
• /
• v.9 no.1
• /
• pp.119-123
• /
• 2006

Isolated avulsion of the lesser tuberosity of the humerus in adolescent is rare injury. The mechanism of injury is acute forced external rotation and with the arm in abduction which has been reported in children participating in sports such as football, hockey, volleyball, wrestling and skateboarding. The diagnosis is often delayed despite chronic pain and disability. Authors report the unique case of a skeletally immature adolescent Judo player who had an isolated avulsion of the lesser tuberosity of the humerus with the references.

• Journal of International Academy of Physical Therapy Research
• /
• v.1 no.1
• /
• pp.65-72
• /
• 2010

Supposing that somatotype evaluation results would have significant differences between the public group with less amounts of exercises and the special group with intensive exercises for three to four times a day, this study aimed at comparing the mutual consistency between the results determined by somatotype evaluation tools such as visually calculated index(VCI), R$\ddot{o}$hrer's Index(RI) and Body Mass Index(BMI). The public, taekwondo players and judo players groups were composed of fifty persons, taekwondo players and judo players passed through VCI determination, respectively. Their height and weight were examined and analyzed with somatotype evaluation tools. Comparison of somatotype dispersion of RI and VCI showed that most women were determined by VCI as lean type but were determined by RI as normal type. And that women were determined by VCI as fat type but were determined by RI as normal type. Therefore both men and women showed significant differences in VCI and RI. Comparison of somatotype dispersion of VCI and BMI showed that both men and women were overestimated or underestimated by VCI rather than by BMI. Comparison of somatotype dispersion of RI and BMI showed that men were less determined by BMI as lean type compared with women; both men and women less determined by BMI rather than by RI as normal type; and both men and women, in particular, were more determined by BMI as fat type but men were more determined by BMI rather than by RI as fat type. Total somatotype consistency by tools showed that VCI has the greatest possibility of determining the public group, compared with other groups as lean type and that the consistency of the three tools were relatively higher for the taekwondo players and judo players groups, compared with the public.

• Journal of the Korea Convergence Society
• /
• v.11 no.4
• /
• pp.49-54
• /
• 2020

The purpose of this study was to investigate the correlation between sports incidence and heart rate variability in nationa lfemale judo athletes. Participants measured heart rate variability using the Autonomic Nervous System(SA-6000). Based on the average incidence of injury, sports injury incidence was classified into upper and lower groups. In addition, Pearson's Product Moment Correlation was performed to examine the correlation between the independent T-test, the number of sports injuries, and the heart rate variability. Heart rate variability was significantly different in total power and low frequency, and there was also significant difference in otal power and low frequency in the correlation analysis of heart rate variability according to the number of sports injuries. These data are expected to be useful as basic data for developing prevention injury programs.