• Journal of Physiology & Pathology in Korean Medicine
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• v.21 no.1
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• pp.126-135
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• 2007

This study was conducted to identify the effects of the oriental medicine Qigong Exercise on the brain power, HRV, pulsation, live blood condition among young boys and girls. The study was performed with two group(control group and experimental group) in a pre-test/post-test design. The subjects were 44 young boys and girls selected by a some middle school in Busan. The oriental medicine Qigong Exercise program consists of 80-minute sessions three times a week over 5 months. All of the subjects were examined on the congnition assessment tool, stress assessment tool, oriental medicine pulsation 3-D MAC, live blood condition analyzer Prior and post surveys were measured before and after the experiment. In the cognition assessment, the amplitude of ERS were increased afer Qigong Exercise. The Success and the Concentration were significantly increased afer Qigong Exercise, the Error was significantly decreased afer Qigong Exercise. The Cognition strength was significantly increased, but the Reponse time was not significantly decreased afer Qigong Exercise. And the Workload was not significantly decreased, the Total Score was not significantly increased afer Qigong Exercise. Among the stress assessment, RRV tachogram's ‘mean RR’ was significantly increased, ‘mean HRV’ was significantly decreased afer Qigong Exercise. SDNN was not significantly increased, Complexity was not significantly increased afer Qigong Exercise. And TP(RRV power's total power) was not significantly increased, VLF and HF was significantly increased, and LF was significantly decreased afer Qigong Exercise. ANS's norm LF was not significantly decreased, but norm HF was significantly increased afer Qigong Exercise. In the RRV's Phase Plot, RMSSD and SDSD were not significantly increased, pnn50 was not significantly decreased afer Qigong Exercise. On the whole, Parasympathetic Activity and Stress Endurance were significantly increased, but Cardiac Activity and Physical Arousal were not significantly increased afer Qigong Exercise. Cardiac Aging was not significantly decreased afer Qigong Exercise. Sympathetic Activity, Autonomic Nervous System Balance and Heart-load were not significantly decreased afer Qigong Exercise. In the pulsation, press power was increased(15%), and w/t(pressurization time / pulsation time) was decreased(20%) afer Oigong Exercise. And the live blood condition was not changed afer Qigong Exercise. As mentioned above; the oriental medicine Qigong Exercise program was identified the effects of the inspiration of the brain power, heart rate and anti-stress.

• Science of Emotion and Sensibility
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• v.12 no.2
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• pp.161-168
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• 2009

In this study, we have developed the patch type HAMS (Heart Activity Monitoring System) which is non-restricted, non-awarable and non-invasive. The module using wireless telecommunication to receive the ECG (electrocardiogram) signal at the computer has mobility which it easily monitors the heart activity of subjects in no time for long term at any time and places. We developed the small patch type electrode which can be attached on the chest. Also the reliability and moving artifact of ECG signal measured by this electrode have been verified. Using HAMS, we measured the HRV (Heart Rate Variability) parameters, the questionnaire evaluation for anxiety and stress and the amount of stress hormone (cotisol) to evaluate the stress effect in HRV on the same subject. As a result of comparing the values under non stressed and stressed condition, there was significant difference on many parameters. And the parameter highly related with stress on Pearson's Correlation Coefficient has been examined. These show that using HAMS is able to evaluate the function of autonomic nervous system. Therefore, we can predict heart problem in daily life by using HAMS. Also we expect that this module can be applied for more application as health monitoring system.

• Journal of Korean Society of Forest Science
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• v.113 no.1
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• pp.107-117
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• 2024

This study investigated temporal changes in forest physical variables and their effects on thermal comfort and physiological and psychological responses. Environmental factors (air temperature, mean radiant temperature, wind speed, and relative humidity), the predicted mean vote (PMV), and the predicted percentage of dissatisfied (PPD) visitors were continuously measured between 9:00 AM and 6:00 PM. We assessed the physiological and psychological responses (heart rate variability, heart rate, oral temperature, blood pressure, pulse rate, thermal sensation vote, comfort sensation vote, and subjective feelings) of 30 male university students (average age: 21.7±1.9 years), who closed their eyes and relaxed for 5 minutes every hour. Examination of correlations between environmental factors and physiological responses showed that ① the mean radiant temperature, wind speed, and relative humidity significantly changed with time; ② PMV and PPD also showed significant changes over time, and the thermal sensation vote corresponded with PMV; however, the comfort sensation vote did not correspond with PPD; ③ Among the physiological responses, parasympathetic nerve activity, sympathetic nerve activity, heart rate, and diastolic blood pressure significantly varied with time, with parasympathetic nerve activity having the lowest value and sympathetic nerve activity the highest at the highest air temperature (2:00-4:00 PM); and ④ Air temperature, mean radiant temperature, and wind speed showed a negative correlation with parasympathetic nerve activity and a positive correlation with sympathetic nerve activity. These findings indicate that the relaxation effects of the forest environment depend on what time of day people are exposed to it, and the changes occurring in forest environmental factors over time modulate these effects.

• The Journal of Korean Society for School & Community Health Education
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• v.17 no.1
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• pp.101-112
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• 2016

Objectives: The purpose of this study was to examine the association between participation in physical activities (PA) and subjective well-being. Methods: We analyzed the data from Korean Youth Risk Behavior Web-based Survey, 2013 containing 36,655 and 35,780 for male and female students respectively. Study variables included PA, participation in physical education class, participation in team sports and subjective well-being. Control variables were school type, socio-economic status, level of parent education, living with parent, academic performance, delinquent behaviors, depression and perceived health. For this study, descriptive analysis, Chi-square test, and multivariate logistic regression analysis were performed. Results: Among boys, after adjusting for control variables, PA (past 7 days 0 time reference group vs. over 4 times: OR 1.306), physical education class (past 7 days 0 time reference group vs. over 3 times: OR 1.140), and team sports (no team reference group vs. 2 team: OR 1.206) were associated with subjective well-being. Among girls, control variables were adjusted. PA (past 7 days 0 time reference group vs over 4 times: OR 1.244), physical education class (past 7 days 0 time reference group vs. over 3 times: OR 1.161), and team sports (no team reference group vs. 2 team: OR 1.181) were associated with subjective well-being. Conclusions: Participation in physical activities may help adolescent promote their life satisfaction. Thus, education experts should develop various exercise curriculums to encourage participation in physical activities.

• Child Health Nursing Research
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• v.24 no.4
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• pp.496-505
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• 2018

Purpose: The purpose of this study was to examine changes in the self-rated health of adolescents and to identify its predictors using longitudinal data from the KCYPS. Methods: A sample of 2,351 adolescents who were in the first grade of middle school in 2010 was analyzed. The study employed latent growth analysis using data from 2010 to 2016. Results: Results indicated that self-rated health of adolescents increased, following the form of a linear function. The analyses revealed that adolescent self-perception of health were conceptualized not only by their health-related behaviors, but also by personal, socioeconomic and psychological factors. Specifically, physical activity, passive leisure time activities, gender (initial: b=-.060, slope: b=.030), place of residence (initial: b=-.079), self-rated economic condition (b=.098), working status of mother (b=.016), monthly family income (b=-.001), aggression (b=.061), depression (initial: b=-.104, slope: b=.012), stress (initial: b=-.172, slope: b=.014, ego-resiliency (initial: b=.197, slope: b=-.021), and self-esteem (initial: b=.106, slope: b=-.017) had significant effects on the overall linear change of self-rated health (p<.05 for all estimators above). Conclusion: The findings of this study suggest that adolescents' self evaluation of their health is shaped by their total sense of functioning, which includes individual, health-related behavioral, socioeconomic, and psychological factors.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.15 no.1
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• pp.67-76
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• 2011

Objectives: The purpose of this study was to examine the effect of cooking and art activities on cognitive function and depression of dementia patients. Methods: The study was carried out on 34 dementia patients (experimental group: 17 persons, control group: 17 persons) at 65 years old or more who correspond to a total MMSE-M, MMSE-K point between 15 and 23 points instituted in a specialized nursing facility in Busan from November 30, 2007 to February 20, 2008. The study used a nonequivalent pretest-posttest design. In previous survey, the study measured points of general characteristics, cognitive function and melancholy. To the experimental group, cooking art activities were carried out for 90 minutes every time and once every week for 12 weeks. Results: Analysis on data was performed using SPSS/WIN 14.0. In addition $x^2$-test, Fisher's exact test and t-test were used for testing of homogeneity and ANOVA was performed for testing of hypothesis. The results of this study are as follows. 1. Hypothesis 1 that 'The experimental group with cooking art activities will show a higher point of cognitive function than the control group without cooking art activities' was supported (F=65.497, p<0.001). 2. Hypothesis 2 that 'The experimental group with cooking art activities will show a lower point of melancholy than the control group without cooking art activities' was supported. (F=27.463, p<0.001) Conclusions: From the above results, cooking art activities showed a significant difference in the increase in cognitive function and reduction in melancholy of dementia patients.

• Journal of Digital Convergence
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• v.15 no.6
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• pp.283-295
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• 2017

The purpose of this study was to identify the effect of psychological health and physical health on health-related quality of life(HRQoL) in Korean Echo Generation by using Korea Health Panel Data 2013. The Korea Health Panel Data 2013 were collected from February to October 2013 and 2,261 respondents were analyzed. The data were analyzed by Independent t-test, ANOVA and multiple regression using SPSS WIN 24.0 program. he mean score of HRQoL was 0.98. The effect of unmet medical needs, psychological & physical stress, unmet basic needs, anxiety about the future, depression, suicidal ideation, smoking, sleeping time, hearing problem, eating problem, restriction of activity, and self-rated health status) were significant on HRQoL. Health care providers should consider the effect of psychological and physical health when they design program for the improvement of HRQoL for Korean echo generation in community.

• Restorative Dentistry and Endodontics
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• v.41 no.4
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• pp.246-254
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• 2016

Objectives: The aim of this investigation was to give insights into the impact of carbohydrate-electrolyte drinks on the likely capacity of enamel surface dissolution and the influence of human saliva exposure as a biological protective factor. Materials and Methods: The pH, titratable acidity (TA) to pH 7.0, and buffer capacity (${\beta}$) of common beverages ingested by patients under physical activity were analyzed. Then, we randomly distributed 50 specimens of human enamel into 5 groups. Processed and natural coconut water served as controls for testing three carbohydrate-electrolyte drinks. In all specimens, we measured surface microhardness (Knoop hardness numbers) and enamel loss (profilometry, ${\mu}m$) for baseline and after simulated intake cycling exposure model. We also prepared areas of specimens to be exposed to human saliva overnight prior to the simulated intake cycling exposure. The cycles were performed by alternated immersions in beverages and artificial saliva. ANOVA two-way and Tukey HDS tests were used. Results: The range of pH, TA, and ${\beta}$ were 2.85 - 4.81, 8.33 - 46.66 mM/L and 3.48 - $10.25mM/L{\times}pH$, respectively. The highest capacity of enamel surface dissolution was found for commercially available sports drinks for all variables. Single time human saliva exposure failed to significantly promote protective effect for the acidic attack of beverages. Conclusions: In this study, carbohydrate-electrolyte drinks usually consumed during endurance training may have a greater capacity of dissolution of enamel surface depending on their physicochemical proprieties associated with pH and titratable acidity.

• Journal of Korean Academy of Nursing
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• v.29 no.1
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• pp.34-47
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• 1999

This study evaluated the Comparison of the Effectiveness of Pelvic Floor Muscle exercise and Biofeedback treatment for Genuine Stress Incontinence I assigned 60 participants to 2 groups : 30 to the pelvic floor muscle exercise group and 30 to the biofeedback group. Treatment protocol lasted for 6 weeks. Peak pressure, and duration time of pelvic muscle contraction were evaluated by a perineometer. Lower urinary symptoms, sexual matter and life style scores were achieved by using Jackson's scale. The treatment efficacy of the pelvic floor muscle exercise is compared with the biofeedback group and the main results of the comparison are as follows : 1. Pelvic muscle contraction 1) The peak pressure in the biofeedback group was significantly increased(P＝0.000). 2. The frequency and quantity of incontinence 1) The frequency of incontinence in the biofeedback group was significantly decreased(P＝0.000). 2) The quantity of incontinence in the biofeedback group was significantly decreased(P＝0.000). 3. The lower urinary symptoms Daily frequency(P＝0.000), nocturia(P＝0.000), urgency(P＝0.000), bladder pain(P＝0.000), unexplained incontinence(P＝0.048), wearing protection(P＝0.022), changing outer clothing(P＝0.005), hesitancy(P＝0.008), intermittent stream(P＝0.000), abnormal strength of stream(P＝0.004), retention(P＝0.000), incomplete emptying(P＝0.000), and inability to stop mid stream(P＝0.006) of the lower urinary symptoms in the biofeedbatk group were significantly decreased. 4. The sexual matters The dry vagina (P＝0.004) and pain during sexual Intercourse (P＝0.002) in the biofeedback group was significantly decreased. 5. The life style The fluid intake restriction(P＝0.007), affected daily task(P＝0.003), avoidance of places & situation(P＝0.003), interference in Physical activity (P＝0.002), interference in relationship with other people(P＝0.01), and feeling about the rest of life with urinary symptom(P＝0.000) in the biofeedback group were significantly decreased. In conclusion, the biofeedback treatment was more effective than the pelvic floor muscle exercise in genuine stress incontinence.

• Journal of Convergence for Information Technology
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• v.11 no.7
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• pp.307-317
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• 2021

This study was a secondary data analysis conducted to identify the factors affecting the health-related quality of life according to the stress perception level of middle-aged. Data from the 2014, 2016, and 2018 Korean National Health and Nutrition Examination Survey were used, and 7,995 people aged 40-64 who answered the level of stress perception were targeted. Data analysis was performed using IBM SPSS ver.25.0, and the significance level was set to .05. As a result of the study, in the feeling less stressed group, household income level, education level, frequency of dinning out, drinking amount at a time, smoking, subjective health, and depression were found to be significant influencing factors, and the explanatory power was 21.4% (p < .001). In the feeling a lot stressed group, household income level, education level, living with a spouse, weekly breakfast frequency, aerobic physical activity, smoking, subjective health, and depression were significant influencing factors, and the explanatory power was 38.7% (p < .001). Therefore, it is suggested to consider each influencing factor in the middle-aged stress reduction intervention.