PURPOSE: The purpose of this study was to investigate the effects of shift work and hours of sleep on metabolic syndrome in Korean workers. METHODS: This study used the Korean National Health and Nutrition Examination Survey data of 2014. The study included 1,579 Korean workers aged over 20. χ2 test, t-test, and hierarchical multiple logistic regression were used for statistical analysis of data. RESULTS: From the univariate analysis, hours of sleep, regular work, occupational group, sex, age, marital status, education, smoking, and self-rated health were significantly related to metabolic syndrome. After adjusting demographic, occupational, and health-related variables, workers with under 6 hours/day of sleep showed higher risk for metabolic syndrome (AOR: 1.56, 95% CI: 1.01~2.44), and shift work was not significantly related to metabolic syndrome. Male laborers and workers aged 40 or older also showed higher risk for metabolic syndrome. CONCLUSION: Results of this study suggest that workers with under 6 hours of sleep, male laborers and workers aged 40 or older are the risk groups of metabolic syndrome. Therefore, prevention and management program for metabolic syndrome should be implemented for this population.
Education ; Humans ; Logistic Models ; Male ; Marital Status ; Nutrition Surveys ; Occupational Groups ; Smoke ; Smoking

PURPOSE: This study was done to investigate differences in health behaviors by job stress level in male and female workers in a large-sized company. METHODS: Participants were 576 male and 228 female workers who completed questionnaires. Job stress was measured using the 'Short Form Korean Occupational Stress Scale (SF-KOSS)'. Health behaviors included smoking, alcohol consumption, regular exercise, and diet. Frequency, mean, SD, chi-square test, and multivariate logistic regression using SAS version 9.1 were used to analyze data. RESULTS: Smoking, drinking and regular exercise rates were not different by job stress level in male or female workers. Only regular diet was significantly different by job stress level in male and female workers. From multivariate analysis, the alcohol consumption rates for female workers differed by marital status. Regular exercise rate was significantly related to age for male workers and type of employment for female workers. After adjusting for demographic and work-related characteristics, regular diet significantly differed by shift work for male workers and marital status and shift work for female workers. CONCLUSION: The findings of the study indicate that nursing interventions should be developed to manage job stress to improve diet habits for male and female workers in large-sized companies.
Adult ; Alcohol Drinking ; Diet ; Employment ; Exercise ; Female ; *Health Behavior ; Humans ; Industry ; Male ; Middle Aged ; Occupational Health ; Questionnaires ; Smoking ; *Stress, Psychological ; Workplace/*psychology

PURPOSE: The purpose of the study was to identify factors influencing physical activity among community-dwelling older adults with type 2 diabetes. The study design was based on the Theory of Triadic Influence. METHODS: A total of 242 older adults with type 2 diabetes participated in this study. Six variables related to physical activity in older adults, including self-efficacy, social normative belief, attitudes, intention, experience, and level of physical activity, were measured using reliable instruments. Data were analyzed using descriptive statistics, Pearson's correlation analyses, and a path analysis. RESULTS: The mean physical activity score was 104.2, range from zero to 381.21. The path analysis showed that self-efficacy had the greatest total effect on physical activity. Also, experience had direct and total effects on physical activity as well as mediated the paths of social normative beliefs to attitudes and intention to physical activity. These factors accounted for 10% of the total variance, and the fit indices of the model satisfied the criteria of fitness. CONCLUSION: The findings of the study reveal the important role of self-efficacy and past experience in physical activity in older adults with type 2 diabetes.
Aged ; Aged, 80 and over ; Attitude ; Diabetes Mellitus, Type 2/*physiopathology/psychology ; Female ; Humans ; Male ; Motor Activity/*physiology ; Personal Satisfaction ; Residence Characteristics ; Self Efficacy ; Surveys and Questionnaires

PURPOSE: This study was to investigate the relationship between self-esteem and satisfaction with volunteer work in a population of health care center volunteers. Ultimately, the results from this study would help to find ways to keep volunteers continuing their work. METHODS: The participants of this study were 179 volunteers who were affiliated with three health care centers located in Gyeonggi-do. Descriptive statistics and multi-stage regression were conducted to analyze data. RESULTS: Self-esteem was significantly associated with the satisfaction with volunteer activity. In addition, the relationship with clients rather than volunteers' general characteristics was also significantly related to the satisfaction with volunteer work. CONCLUSION: Therefore, it is necessary to increase a volunteer's self-esteem so that the volunteer can keep continuing his or her volunteering activities. Also, in order to promote good relationships between the volunteers and the clients, it will be important to teach communication skills to volunteers.
Delivery of Health Care ; Public Health

PURPOSE: The purpose of this study was to investigate the influences of job insecurity on job related depression and anxiety in large- and small-sized company employees. METHODS: Data of the third Korean Working Condition Survey in 2011 were used. Subjects were 2,050 large-sized company employees and 18,924 small-sized company workers. χ² test and multiple logistic regression using SAS 9.2 were conducted. RESULTS: Large- and small-sized company employees showed significant differences in terms of demographic, health-related, and job-related characteristics. From the bivariate analysis, gender, income, self-rated health, occupation, working hours per week, job-related stress, workplace violence, and job insecurity were significantly related to job-related depression/anxiety in large-sized company employees. From the multivariate analysis, higher income (AOR: 0.22, 95%CI: 0.07~0.71), better health perception (AOR: 0.05, 95%CL: 0.01~0.18), 40 or more working hours per week (AOR: 0.20, 95%CI: 0.05~0.79) showed lower risk for job-related depression/anxiety. From the bivariate and multivariate analysis, better health perception (AOR: 0.32, 95%CI: 0.20~0.53), higher job-related stress (AOR: 2.57, 95%CI: 1.68~3.93, workplace violence experience (AOR: 4.26; 95%CI: 2.88~6.30), and job insecurity experience (AOR: 1.90, 95%CI: 1.18~3.05) were significantly related to job-related depression/anxiety in small-sized company employees. CONCLUSION: Results of this study suggest that job insecurity experience was significantly related to job-related depression/anxiety in small-sized company employees but not in large-sized company employees. Therefore, small-sized company workers who have experienced feeling of job insecurity are vulnerable population in terms of job-related depression/anxiety.
Anxiety* ; Depression* ; Humans ; Logistic Models ; Multivariate Analysis ; Occupations ; Vulnerable Populations ; Workplace Violence

PURPOSE: The purpose of this study was to investigate the influences of sarcopenic and non-sarcopenic obesity on the components of Metabolic Syndrome (MetS) in adolescents. METHODS: This study used the fifth Korean National Health and Nutrition Examination Survey data from 2010 to 2011. The study included 859 adolescents aged 12 to 18 years. Descriptive statistics and simple and multiple logistic regression analyses were conducted using SAS 9.2. RESULTS: Based on the results, adolescents with sarcopenic obesity had a higher risk of central obesity (AOR: 23.41, 95% CI: 12.76–43.97), high triglyceride (OR: 4.58, 95% CI: 2.69–7.79), low HDL-cholesterol (AOR: 2.66, 95% CI: 1.74–4.05), high blood pressure (AOR: 3.44, 95% CI: 1.37–8.68), and high fasting glucose (AOR: 2.37, 95% CI: 1.13–4.96) than their normal counterparts. Adolescents with non-sarcopenic obesity had a higher risk of central obesity (AOR: 19.75, 95% CI: 9.73–44.67), high triglyceride (OR: 3.09, 95% CI: 1.22–7.81), and low HDL-cholesterol (AOR: 2.73, 95% CI: 1.37–5.45) than normal youths, and these were not significantly related to high blood pressure and fasting glucose. CONCLUSION: Sarcopenic obesity was more related to the components of MetS than non-sarcopenic obesity. Since adolescents with sarcopenic obesity are a more vulnerable population, a prevention and management program for MetS and cardiovascular risk should be implemented in this population.
Adolescent* ; Fasting ; Glucose ; Humans ; Hypertension ; Logistic Models ; Nutrition Surveys ; Obesity* ; Obesity, Abdominal ; Sarcopenia ; Triglycerides ; Vulnerable Populations

PURPOSE: Previous studies focused on the negative effects of Internet use such as obesity, depression, and addiction. However, few studies investigated whether the Internet use for an appropriate time has positive effects on adolescents' health. Thus, the purpose of the study was to examine the dose-response relationship between Internet use for non-academic purposes (NAP) and happiness/stress in adolescents. METHODS: This study used data from the 2013 Korea Youth Risk Behavior Web-Based Survey. A total of 72,435 adolescents were included. Rao-Scott chi2 and multiple logistic regression were conducted. To test the dose-response relationship, this study examined how happiness/stress changed with increase in the time of Internet use for NAP. RESULTS: After controlling for general characteristics, the odds ratios for being unhappy and stressful were lowest in adolescents using the Internet for NAP for more than 0 hour and less than an hour a day. Interestingly, students who did not use the Internet for NAP had a significantly higher risk of being unhappy/stressful than those using for more than 0 hour and less than an hour a day. CONCLUSION: Internet use for NAP for more than 0 hour and less than an hour a day has positive effects on happiness/stress in adolescents.
Adolescent* ; Depression ; Happiness* ; Humans ; Internet* ; Korea ; Logistic Models ; Obesity ; Odds Ratio ; Risk-Taking ; Stress, Psychological

The effects of C-phycocyanin (C-pc), a phycobiliprotein, on the expression of pro-fibrotic mediators in hyper-tropic scarring such as connective tissue growth factor (CTGF) and α-smooth muscle actins (α-SMA) were investigated in relation to trans-differentiation of fibroblast to myo-fibroblast, an icon of scar formation. C-pc was isolated from Spirulina Platensis extract using sonication method and C-pc concentration was determined by Bennet and Bogorad equation. α-SMA and CTGF levels in wounded primary human dermal fibroblasts were determined by western blot analysis and immuno-fluorescence confocal microscope was employed. Fibroblast contractility was examined by three-dimensional collagen lattice contraction assay. There was an elevation of α-SMA (121%) and CTGF (143%) levels in wound cells as compared with non-wound cells. The does-response profiles of down regulation demonstrated that the maximum inhibitions of α-SMA by 63% (p<0.05) and CTGF by 50% (p<0.1) were achieved by C-pc (6 nM) treated cells. In confocal assay, non-wound fibroblasts exhibited basal level of α-SMA staining, while wounded cells without C-pc treatment showed strong up-regulation of α-SMA by 147% (p<0.05). C-pc (6 nM) inhibited α-SMA expression by 70% (p<0.05) and reduced collagen contraction by 29% (p<0.05). C-pc seemed to lessen the over expression of CTGF, α-SMA, subsequently alleviating the fibrotic contracture. This study suggests the potential application of C-pc to regulation of the expression of pro-fibrotic mediators in scarring process and its potential usage as an efficient means for anti-fibrosis therapy.
Actins* ; Blotting, Western ; Cicatrix ; Collagen ; Connective Tissue Growth Factor* ; Connective Tissue* ; Contracture ; Down-Regulation ; Fibroblasts ; Humans ; Methods ; Myofibroblasts ; Phycocyanin* ; Sonication ; Spirulina ; Up-Regulation ; Wound Healing ; Wounds and Injuries

Purpose: This study aimed to investigate the evidence that therapeutic horseback riding can improve balance, muscle, ADL, equivalenc, GMFM, gait, emotion with developmental disabilities and neural patients. Methods: To conduct meta-analysis, the search focused on studies that employed therapeutic horseback riding for developmental disabilities and neural patients for which eight databases (KIS, RISS, DBpia, National Assembly Library, Pubmed, Embase, Google scholar and Cochrane Library) were used to extract literature published from 2002 to September 2019. The data were analyzed the RevMan 3.5.3 program. Results: As a result of meta-analysis, therapeutic horseback riding total effect size is 0.552 for children with developmental disabilities and neural patients. And effect size result of according to assessment type variable first, balance effect size is 0.594. Second, muscle activities effect size is 0.425. Third, ADL effect size is 0.430. Fourth, equivalance effect size is 0.640. Fifth, GMFM effect size is 0.482. Sixth, gait effect size is 0.400 and seventh emotion effect size is 0.876. Conclusion These findings is horseback riding is effective The effect size by outcome was observed to be the effective for children with developmental disabilities and neural patients. and also the horseback riding provided the positive effects of balance, muscle activities, ADL, equivalance, GMFM, gait, emotion for children with developmental disabilities and neural patients. It is hoped that this study will contribute to the development of effective treatments for children with developmental disabilities and neural patients therapeutic horseback riding and the development of study.

Purpose: This study examined the effects of changes in the intensity of Functional Electrical Stimulation (FES) on CorticoMuscular Coherence (CMC) during action observation. This paper presents a neurophysiological basis for the effective intensity of FES. Methods: Twenty-seven healthy volunteers were asked to observed a video with FES. The FES was provided with a sensory stimulation level, nerve stimulation level, and motor stimulation level. Simultaneously, an electroencephalogram (EEG) of the sensorimotor cortex and electromyogram (EMG) from the wrist extensor muscle were recorded. The peak CMC and average CMC were analyzed to compare the differences caused by the FES intensity. Results: The peak CMC showed a significant increase in the alpha band during motor stimulation (p<0.05). The average CMC showed a significant increase in the beta band during motor stimulation (p<0.05). Conclusion The intensity of FES, which causes actual movement, increased the CMC during action observation. These results show that the intensity of the FES can affect the functional connection between the sensorimotor cortex and muscle.