• Journal of the Korean Society of Industry Convergence
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• v.27 no.1
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• pp.239-248
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• 2024

In this study, we examined changes in the food consumption patterns of Korean adults due to COVID-19 using the results of the 2019 and 2021 adult household member food consumption behavior surveys. In the weight and BMI analysis results, both men and women showed a significant increase in 2021 compared to 2019 (male; p<0.01 female; p<0.001). The frequency of breakfast skipping was found to increase with none and over 5 times. As for interest in domestic agricultural products, the proportion of 'not interested' and 'average' responses decreased, while the proportion of those who responded 'interested' increased (p<0.01). The rate of eating out was found to have significantly decreased in 2021 compared to 2019. As a result of the eating lifestyle analysis, the taste seeking type, quality safety seeking type, and health seeking type also showed an increase in 2021 compared to 2019, and a significant level was confirmed. In the purchasing competency index, the use of labeling for agricultural products, use of agricultural food information, and agricultural food purchasing environment items all showed significantly improved results in 2021 compared to 2019, and the eating competency index showed a significant increase in healthy eating and traditional eating habits. Through this study, we aim to suggest directions for establishing food marketing strategies and dietary education for adults in the event of a future pandemic.

• Journal of Nutrition and Health
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• v.49 no.6
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• pp.459-470
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• 2016

Purpose: The purpose of the present study is to identify the relationship between practicing healthy diet and metabolic syndrome indicators in Koreans. Methods: This research is a cross-sectional study based on the 2013~2014 Korea National Health and Nutritional Examination Survey. This study investigated 6,748 adults aged 19 to 64 yr (19~49 yr: n = 4,230, 50~64 yr: n = 2,518) to examine practice of healthy diet and metabolic syndrome indicators. In this study, according to practicing healthy diet, we classified subjects into the "Practicing healthy diet (PHD)" group (19~49 yr: n = 1,782, 50~64 yr: n = 937) and "Non-practicing healthy diet (NPHD)" group (19~49 yr: n = 2,448, 50~64 yr: n = 1,581). PHD score was determined by adding the number of practicing factors: adequate fat intake, sodium intake ${\leq}2,000mg/day$, fruit & vegetable intake ${\geq}500g/day$, and using nutrition label information in food selection. Results: Female adults had a larger proportion of subjects who practiced a healthy diet compared to male adults (p < 0.001), and the percentages of 19~49 yr and 50~64 yr were 40.46% and 37.07%, respectively. The PHD group consumed significantly more calcium, vitamin $B_1$, $B_2$, and vitamin C density compared to the NPHD group. In 50~64 yr females, the subjects practicing healthy diet (PHD score ${\geq}2$) was inversely associated with risk of abdominal obesity (OR: 0.71, 95% CI: 0.54~0.93, p value = 0.0131) and metabolic syndrome (OR: 0.70, 95% CI: 0.52~0.94, p value = 0.0166) after adjustments for multiple confounding factors, compared with the lower PHD score (PHD score ${\leq}1$). Conclusion: Good dietary practice such as adequate fat intake, sodium intake ${\leq}2,000mg/day$, sufficient fruit & vegetable intake, and using nutrition label information in food selection could be useful in decreasing metabolic syndrome risk of Korean adults.

• Journal of Nutrition and Health
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• v.34 no.3
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• pp.306-312
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• 2001

We investigated the effect of physical exercise on the intakes and plasma levels of vitamin C and E in young male adults. The study population were divided into two groups: small-amount exercisers($\leq$ 30min/day, n=29) and moderate-amount exercisers(> 30min/day, n=32) according to their physical exercise habits measured by a questionnaire. Dietary intakes of vitamin C and E of the subjects were estimated by the 24 hour recall method. Plasma lipid profiles, vitamin C, $\alpha$-tocopherol and ${\gamma}$-tocopherol levels were analyzed. No significant differences were observed in total cholesterol, TG, HDL-C and LDL-C of plasma between two groups. Plasma vitamin C and $\alpha$-tocopherol levels in moderate-amount exercisers were significantly higher than those in small-amount exercisers, although dietary intakes of vitamin C and vitamin E were not significantly different between two groups. However, plasma ${\gamma}$-tocopherol level of moderate-amount exercisers did not significantly differ from small-amount exercisers. There was a positive correlation between the amount of exercise and plasma $\alpha$-tocopherol level. These results suggest that moderate amount of exercise over 30 min per day would lead to a healthy life with an activated antioxidant defence system against oxidative stress.(Korean J Nutrition 34(3) : 306~312, 2001)

• Journal of Korean Academy of Fundamentals of Nursing
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• v.18 no.1
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• pp.79-86
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• 2011

Purpose: The purpose of this study was to investigate the relationship of fatigue and Yangsaeng in Korea. Yangsaeng as a traditional health care regimen for the promotion of health and prevention of illness by means specific principles and methods, whose purpose was to improve longevity and healthy life. Method: The subjects of this study were 196 male adults in Korea. Data were collected by using a self-reported questionnaire and analyzed through descriptive statistics, Pearson's correlation coefficient, t-test, ANOVA and multiple linear regression. Results: There was statistically significant difference in Yangsaeng and fatigue according to age and education. The relationship between Yangsaeng and fatigue had a significant negative correlation. Exercise, sleep, mind Yangsaeng were found to be significant predictors (28%) of fatigue. Conclusion: To prevent fatigue of adults, nurse should focus on the factors identified in this study when she develop nursing intervention programs for health promotion.

• Nutrition Research and Practice
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• v.8 no.1
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• pp.59-65
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• 2014

There is currently no reference for intake of lysine for Chinese people; therefore, the present study was conducted to determine the lysine requirement of Chinese young male adults on a habitual Chinese mixed diet based on the modified indicator amino acid oxidation method. Seven young men with a mean age of $23.7{\pm}2.2$ years that were healthy based on questionnaire, physical examinations and screening tests were evaluated. Subjects were evaluated over five consecutive 7 day periods, during which time they were administered decreasing amounts of lysine via the diet (65, 55, 45, 35, $25mg{\cdot}kg^{-1}{\cdot}d^{-1}$). Subjects were allowed to adapt from day 1 to 6 and the isotopes were measured on day 7 in each period. The subjects' body weights, body compositions and plasma proteins were also examined during the study. Amino acid kinetics were measured based on the indicator amino acid oxidation technique using the $^{13}CO_2$ release rate and phenylalanine oxidation rate to estimate lysine requirements. Body weights, body compositions, and plasma proteins of subjects did not change significantly relative to those at baseline. The mean and the upper 95% CI of lysine requirements of Chinese habitual diets were determined to be 58.41 and $70.09mg{\cdot}kg^{-1}{\cdot}d^{-1}$, respectively, based on the $^{13}CO_2$ release rate and 54.28 and $65.14mg{\cdot}kg^{-1}{\cdot}d^{-1}$, respectively, based on the phenylalanine oxidation rate.

• The Journal of Korean Physical Therapy
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• v.26 no.2
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• pp.97-103
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• 2014

Purpose: The aim of this study was to clarify the gender difference during standing balance in accordance with recruitment of abdominal muscles against sudden support surface translation. Methods: Twenty healthy males (n = 10, $26.50{\pm}3.54$ years, $170.60{\pm}6.30cm$, $72.80{\pm}5.69kg$) and females (n = 10, $24.40{\pm}2.63$ years, $163.00{\pm}4.97cm$, $52.10{\pm}4.41kg$) participated in the study. Each subject performed standing balance task on a platform, which moved in the anterior and posterior direction, with a total of 18 trials in three abdominal conditions (resting, hollowing, and bracing). We analyzed angular displacement of thoracic and lumbar spine and linear displacement of center of mass for evaluatione of spinal stability and standing balance, respectively. Results: Angular displacement of thoracic and lumbar spine and linear displacement of center of mass did not differ significantly between female and male in all conditions. Conclusion: Our results indicate that the ability to maintain spinal stability and standing balance were similar between male and female regardless of the abdominal contractile conditions and the direction of support surface translation.

• Clinical and Experimental Vaccine Research
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• v.12 no.1
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• pp.82-84
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• 2023

There were growing reports of herpes zoster reactivation after the coronavirus disease 2019 (COVID-19) vaccination, including a more severe form, herpes zoster ophthalmicus (HZO). A 35-year-old male presented HZO in his left V1 dermatome 10 days after his COVID-19 vaccine booster with Moderna (messenger RNA-1273). He had no history of chronic disease, immunocompromised, autoimmune, malignancy, or long-term immunosuppressive drug use. The rash improved without any further complications after being treated with oral valacyclovir for 7 days. This was a unique case of HZO after the COVID-19 vaccine in a booster setting in healthy younger adults. The association of herpes zoster after a COVID vaccine remained inconclusive and potentially coincidental, especially without the known risk factor. However, we would like to add a report to increase awareness among physicians and the general population, for early recognition and treatment with an antiviral.

• Journal of Nutrition and Health
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• v.48 no.5
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• pp.398-406
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• 2015

Purpose: In the present study, we aimed to evaluate the effect of sucrose containing 2 different levels of xylooligosaccharide on the glycemic index (GI) and blood glucose response in healthy adults. Methods: Healthy adults (4 male participants and 6 female participants, n = 10) were randomized to receive glucose, sucrose, sucrose containing 7% xylooligosaccharide active elements (Xylo 7), or sucrose containing 10% xylooligosaccharide active elements (Xylo 10). Each participant was administrated one of these materials once a week for 8 weeks and an oral glucose tolerance test was performed. Results: We found a reduction in the glycemic response to sucrose that included xylooligosaccharide active elements (Xylo 7 and Xylo 10). The glycemic indices of sucrose, Xylo 7 and Xylo 10 were 68.9, 54.7, and 52.5, respectively. The GI values of Xylo 7 and Xylo 10 were similar to that of foods with low GI. The percentage reduction of GI value caused by sucrose containing xylooligosaccharide active elements was significantly different and dose-dependent as compared to that caused by sucrose alone (p < 0.05). The reduction in the glycemic response to Xylo 7 and Xylo 10 was 21% and 24%, respectively, as compared to the glycemic response to sucrose. The attenuation of the glycemic response to Xylo 10 tended to be higher than that for Xylo 7 when the percentage of body fat was increased. Conclusion: These results demonstrated that xylooligosaccharide active elements may be effective in protecting humans against overconsumption of sucrose.

• Journal of Nutrition and Health
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• v.49 no.5
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• pp.295-303
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• 2016

Purpose: The objective of this study was to compare the effects of three different levels of xylobiose containing sucrose on glycemic indices based on oral glucose tolerance test (OGTT) and blood glucose response in healthy adults. Methods: Healthy adults (six male and five female participants, n = 11) underwent 14~16 hr of fasting. Subsequently, all participants took 50 g of available carbohydrates from glucose, sucrose containing 7% xylobiose (XB 7), sucrose containing 10% xylobiose (XB 10), or sucrose containing 14% xylobiose (XB 14) every week on the same day for 8 weeks. Finger prick blood was taken before and 15, 30, 45, 60, 90, and 120 min after starting to eat. Results: We observed reduction of the glycemic response to sucrose containing xylobiose. The glycemic indices of XB 7, XB 10, and XB 14 were 57.0, 53.6, and 49.7, respectively. The GI values of XB 7 were similar to those of foods with medium GI, and the GI values of XB 10 and XB 14 were similar to those of foods with low GI. The postprandial maximum blood glucose rise (Cmax) of XB 14 was the lowest among the test foods. XB 7, XB 10, and XB 14 showed significantly lower areas under the glucose curve (AUC) for 0~30 min, 0~60 min, 0~90 min and 0~120 min compared to glucose. Conclusion: The results of this study suggest that sucrose containing xylobiose has an acute suppressive effect on GI and postprandial maximum blood glucose rise. In addition, levels of xylobiose in sugar may allow more precise assessment of carbohydrate tolerance despite lower glycemic responses in a dose-dependent manner.

• Journal of Korean Institute of Industrial Engineers
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• v.41 no.2
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• pp.121-127
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• 2015

A reduction of motor performance due to brain disorders can be screened by evaluating force tracking capabilities (FTCs). Existing studies have examined FTCs mainly using simple sinusoidal waves, of which repeated profiles have a critical limitation due to a learning effect in force tracking. The present study examined the effects of personal factors (age and gender) and sinusoidal wave factors (central force and complexity) on FTCs of healthy adults using composite sinusoidal wave profiles (CSWPs). FTCs were measured using Finger $Touch^{TM}$ for 30 seconds and quantified in terms of time within the target range (TWR, accuracy measure) and relative RMSE (RRMSE, variability measure). A total of 90 healthy adults in 20s to 70s with the equal gender ratio participated in the experiment consisting of combinations of 2 central force levels (6 N and 10 N) and 2 complexity levels (approximate entropy, ApEn = 0.03 and 0.06) of CSWPs. Significantly decreased FTCs (lower TWR and higher RRMSE) were found in aged adults, females, the low central force, and the high complexity. The detailed FTC decrements include a 43% reduced TWR and a 85% increased RRMSE of older adults in 70s as compared to those in 20s, a 17% reduced TWR and a 17% increased RRMSE of female as compared to those of male, a 30% reduced TWR and a 108% increased RRMSE at central force = 6N when compared to those at central force = 10N, and a 19% reduced TWR and a 30% increased RRMSE at ApEn = 0.06 as compared to those at ApEn = 0.03. The characteristics of FTCs for CSWPs can be of use in establishing an assessment protocol of motor performance for screening brain disorders.