• Science of Emotion and Sensibility
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• 제12권2호
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• pp.169-180
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• 2009

The present study have investigated the effect of the characteristics of stereoscopic images and viewing environment on visual fatigue. We manipulated the speed of stereo images with motion-in-depth and viewing distance, which were used as representative variables of the characteristics of stereo image and viewing environment, respectively. Visual fatigue was evaluated with use of a subjective questionnaire which is consisting of 5 different and independent factors: "Eye pain", "Visual stress," "Nauseousness", "Body stiffness", and "Blurriness". In general, when viewing time increased from 10 minutes to 20 and 40 minutes, observers felt severe visual fatigue. Among other factors, only the factor score of "Nauseousness" was significantly increased as the speed of object moving in depth became faster. When viewing distance was increased, the score of "Blurriness" was decreased. These results suggest that different kind of the visual fatigue might be induced depending on characteristics of the stereo images and viewing environment.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제15권5호
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• pp.2996-3006
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• 2014

The purpose of this study was to estimate self-esteem, social support and depressive symptoms among college students, as well as to reveal its related factors. The self-administered questionnaire was filled out by 471 students from university located in Daejon city and Chungnam during two weeks from April 23, 2013. As a results, lower the self-esteem is, the depression level comes out to be higher. Also weaker social support is the factor to give rise to depression. Self-esteem and social support showed negative correlation with depression. Social support showed positive correlation with self-esteem. According to hierarchical multiple regression analysis, following factors influence depression level with explanatory powers of 23.8%: sex, age, stress for body shape, perceived economical status, studying time, self-esteem, and social support. In the conclusion, this result imply that depression level of college students is closely related to self-esteem and social support. Especially, social support showed higher correlation with depression.

• The Journal of the Korea Contents Association
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• 제21권3호
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• pp.301-313
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• 2021

This study was conducted on 253 artists for a month from April 19, 2020 to study the influence and countermeasures of COVID-19. The analysis results are as follows. First, as a result of frequency analysis, the timing of the occurrence of COVID-19 and the period of the decrease in artist's artistic activities were consistent, and the subjective socioeconomic level perceived by the artist was degraded from COVID-19. Second, as a result of the multivariate variance analysis, the income level and employment environment of artists affected the variables associated with COVID-19. Third, as a result of the hierarchical analysis analysis, the income level and the socioeconomic level changes due to COVID-19, and concerns about COVID-19 infections, have been shown to have had a significant impact on the level of stress felt by artists. Fourth, as a result of qualitative research, the artist reported that he was experiencing economic and psychological difficulties due to the influence of COVID-19, and emphasized the need for policy support as a way to cope with them. We hope that the results of this study will be used as empirical data in the process of developing support systems and programs for artists experiencing economic constraints and social alienation due to COVID-19.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제17권7호
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• pp.666-676
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• 2016

This study was designed to examine the depressive symptoms of individuals who became visually impaired and identify factors associated with the symptom. For the analysis, data from the Korean National Survey of Individuals with Disability 2014 was used. Adults between the ages of 20 and 60 years who became visually impaired after the first year of birth were included with a total of 235 individuals in the final sample. To identify the determinants of their depressive symptoms, a multivariate logistic regression analysis was conducted. The results showed that about twenty percent of the respondents reported having depressive symptoms in the past year. Among the sociodemographic factors, age, gender, and marital status were identified as significant predictors, while smoking status, stress level, and self-reported health status were identified as important health-related predictors. Among the disability-related factors, the length of disability and activities of daily living level were found to be significantly associated with the likelihood of experiencing the symptom. The results indicate the need for practitioners working with visually impaired populations to be better aware of the risks of depression and develop a wide array of preventive measures and techniques to work with individuals suffering from depression.

• Journal of Digital Convergence
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• 제12권9호
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• pp.225-235
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• 2014

The purpose of this study is to examine the association between regular exercise habit, self-rated health status, health practice index, and health promotion lifestyle profile among 241 college male students from Gyeonggi-do. Subjects were divided into two groups: students majoring in physical education(PE) and students who are not majoring in PE. The average BMI were $22.77{\pm}2.74$ among PE majors and $21.57{\pm}4.30$ among the other group. PE majors showed higher results in all of physiological, subjective and social health conditions. Both groups showed low scores in health practice index, which were $2.86{\pm}1.10$ among PE majors and $2.97{\pm}1.46$ among non-PE majors, showing no difference in statistical significance. Index for health promoting lifestyle practices were somewhat higher among PE majors; however, there were no statistical significance with the results of $123.38{\pm}19.93$ among PE majors and $119.98{\pm}22.04$ among non-PE majors. The analysis on the index for health promoting lifestyle practices in sub-categories showed that PE majors showed significantly higher scores compared with non-PE majors in physical activities area and vice versa in nutrition area.

• Journal of the Korean Arthroscopy Society
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• 제3권2호
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• pp.102-108
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• 1999

Purpose : The purpose of this study was to evaluate the clinical results of bone-patellar tendon-bone(B-PTB) allograft for ACL reconstruction without mechanical tensioning device. Material and Method : Forty-six knees in 43 patients were reviewed and evaluated with subjective evaluation, objective evaluation, Telos stress arthrometer and modified Feagin Scoring System. The average age at the time of operation was 27 years(range, 18-42) and the average follow up period was 41 months(range, 22-79). Authors reconstructed ACL using B-PTB allograft which was prepared by rehydration preoperatively without tensioning by mechanical tensioning device. The tension for allograft was obtained by full flexion and extension intraoperatively. All operation were performed arthroscopically by two-tunnel method to avoid the mismatching of allograft tendon length. Result : The modified Feagin Scoring System revealed 39 cases(84.7%) with excellent or good results and 7 cases(15.3%) with fair or poor results. The mean follow-up Lysholm Knee Score was 84. Telos arthrometer revealed 41 cases had an injured-to-uninjured difference of 5 mm or less(mean 2.3mm). The range of motion of knee was nearly normal and there was no extension lag in any cases at last follow up. Conclusion : Clinical results using B-PTB allograft showed less morbidity than B-PTB autograft. The intraoperative tensioning method by full flexion and extension without mechanical tensioning device was not bad. Therefore, B-PTB allograft is a good substitute material in reconstruction of the ACL.

• Korean Journal of Psychosomatic Medicine
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• 제9권2호
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• pp.164-173
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• 2001

Objectives : Fatigue is a common symptom in primary medical care and has nonspecific and highly subjective features. So it has been difficult to define and measure fatigue, especially those present without any organic diseases. This study was conducted to evaluate the validity of the Fatigue severity scale(FSS) in patients with persistent fatigue who were free of any organic diseases or psychiatric disorders of depression or anxiety. Methods : Subjects consisted of 45 controls, 44 fatigued patients and 43 psychiatric patients with depression or anxiety. They all completed the fatigue severity, modified Bepsi stress, and Hospital anxiety and depression scales. Chalder fatigue scale was administrated randomly in 30 of them. Data were analyzed for reliability and validity of the FSS. Results: Cronbach's a coeffient of FSS was 0.929, and the Pearson correlation coefficient for test-retest was 0.916(p<0.01). ANCOVA for discriminant validity revealed that there were significant differences in mean FSS values among the three groups. The fatigue group had significantly higher FSS value than the other two groups. The psychiatric group also had significantly higher FSS value than the control group. The Pearson correlation coefficient for convergent validity by comparing FSS with Chalder fatigue scale was 0.782(p<0.01). Using FSS index 3.22 as the cut-off point, sensitivity was 84.1% and specificity was 85.7% for the fatigue and control groups, respectively. Conclusion : Results suggested the clinical application of the FSS to be a useful measurement for distinguishing fatigue between patients with physiologic fatigue and psychiatric patients with depression or anxiety.

• Journal of the Korean Arthroscopy Society
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• 제4권2호
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• pp.105-110
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• 2000

Purpose : The purpose of this study was to evaluate the clinical results of fresh-frozen achilles allograft PCL reconstruction. Materials and Methods : 34 patients(35 cases) who was reconstructed PCL arthroscopically using achilles allograft were analyzed subjective and objective parameters, Telos stress arthrometer and Modified Feagin Scoring System. The average age was 36.2 years old($16\~57$ year) and average follow up period was 18.5 months($12\~27$ months). Result : The mean Lysholm Knee Scoring was improved from 47.5 to 87.4. Posterior translation by Telos arthrometer decreased to 2.3mm from 7.1mm. The modified Feagin scoring system showed 32 cases$(91.5\%)$ with excellent and good result. Conclusion : Clinical results of PCL reconstruction by Achilles allograft revealed good result as to scales. Achilles allograft provided enough initial tension with length and minimized the complication of using autograft. Therefore achilles fresh-frozen allograft in PCL reconstruction is a good substitute material for autograft.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제15권7호
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• pp.4361-4369
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• 2014

This study examined the gender role identity within the Korean context with particular focus on how the changes within Korean society may have impacted on the gender role identities of middle-aged men. This research adapting Q methodology created a sampling distribution of P with 40 middle-aged men aged between 40-59 years old. Each of 40 Q samples were placed in a forced distribution of 9 scales. Secondary analysis of the results was then conducted by principal component factor analysis using the QUANL PC program. Middle-aged men are likely to have traditional masculinity and newly developed femininity, such as caring for others and sensitivity. This means that a consideration of these characteristics needs to understand the gender role identity of middle-aged men.

• Journal of Oral Medicine and Pain
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• 제33권3호
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• pp.257-267
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• 2008

The mentophysical disease causes diseases in digestive, respiratory, circulating systems, including chronic pain, through combined reactions from different individual characteristics, mental stress and temperamental factors. The most common symptom related to orofacial area is pain and the contributive factors include biological, behavioral, environmental, social, emotional, recognitive factors. These factors affect the course of the symptom according to individual's character and human nature. In pain, sleep acts as a contributive factor, and pain could bring about sleep disturbance and vice versa. Deterioration of sleep quality would act as a factor that aggravates mental stress. Therefore, relatively accurate and simple mental examinations and sleep quality test should be carried out for the patients with symptoms related to orofacial area. This study evaluated the mental state in relation to the sleep quality which could affect orofacial pain. The number of poor sleeper was 18 in male subjects, and 1 in female subjects and PSQI global index was higher in male($6.11{\pm}2.38$) than female($4.67{\pm}2.18$). SCL-90-R index showed no sex difference. Poor sleeper showed significantly high value in SOM, O-C, I-S, ANX, PHOB, PSY, GSI, PST. When SCL-90-R T scores were compared according to sleep quality, higher the subjective sleep quality score, O-C and I-S showed significant increase. As sleep disturbances score increased, PAR, PSY, PST showed statistically significant increase. In comparison of SCL-90-R T score according to daytime dysfunction, statistically significant increase in DEP, ANX, HOS, PHOB, PAR, GSI was observed. Therefore, the quality of sleep and psychological status have a high correlation. This is likely to influence chronic pain in the orofacial field. As a result, clinicians treating orofacial pain should evaluate the sleep quality and psychological status of the patient. Further studies of larger sample sizes including various age, occupation, and pain groups are necessary in order to apply the results to clinical practice.