• The Journal of the Acoustical Society of Korea
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• v.26 no.1E
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• pp.8-13
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• 2007

It has long been known that high-frequency sensorineural hearing loss (HFHL) can contribute to difficulty in speech understanding by elderly listeners. This study evaluated the relative contribution of HFHL and age to speech understanding. Subjects included adult middle-aged and old groups with normal hearing or with limited HFHL. The Hearing-in-Noise-Test (HINT) was used to measure speech perception performance in quiet and in noise. The middle-aged groups showed significant effects of HFHL for speech intelligibility in quiet and in noise, but the old groups showed the difference in quiet only due to high frequency hearing. The results suggest that HFHL may affect speech intelligibility differently with age and therefore hearing aid selection needs to take into account the influence of age.

• Clinical Nutrition Research
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• v.13 no.2
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• pp.96-107
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• 2024

Malnutrition affect clinical outcomes in hospitalized old age patients, but the data on the related outcomes on the basis of different age categories are still limited. We aimed to investigate the interplay of associations among body mass index (BMI), falls risk, and mortality rate in different older adult patient age categories. This retrospective study included hospitalized patients aged ≥ 65 years who received artificial nutrition. Demographic, biochemical, and survival data were collected. BMI was evaluated using the World Health Organization BMI cutoffs for Asians, and patients were classified into high (≥ 23.0 kg/m²), normal (18.5-22.9 kg/m²), and low (< 18.5 kg/m²) BMI groups. The Morse Fall Scale was used to assess falls risk. By age categories, all patients (n = 4,642) were divided into the 65-74 (n = 2,649) and ≥ 75 (n = 1,993) years age groups. We found that the proportion of low-BMI and high risk of falls increased with age. Further, low-BMI was associated with increased falls risk in both age groups. Overall survival rate tended to be lower in the low-BMI and ≥ 75 years group than that in other patient groups, but did not differ significantly compared with the low-BMI and 65-74 years group. Low-BMI was associated with increased falls risk and mortality; however, the association depended on specific patient age groups.

• BMB Reports
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• v.52 no.4
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• pp.259-264
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• 2019

Social requirements are needed for living in an aging society and individual longevity. Among them, improved health and medical cares, appropriate for an aging society are strongly demanded. Human cord blood-derived plasma (hUCP) has recently emerged for its unique anti-aging effects. In this study, we investigated brain rejuvenation, particularly olfactory function, that could be achieved by a systemic administration of young blood and its underlying mechanisms. Older than 24-month-old mice were used as an aged group and administered with intravenous injection of hUCP repetitively, eight times. Anti-aging effect of hUCP on olfactory function was evaluated by buried food finding test. To investigate the mode of action of hUCP, brain, serum and spleen of mice were collected for further ex vivo analyses. Systemic injection of hUCP improved aging-associated olfactory deficits, reducing time for finding food. In the brain, although an infiltration of activated microglia and its expression of cathepsin S remarkably decreased, significant changes of proinflammatory factors were not detected. Conversely, peripheral immune balance distinctly switched from predominance of Type 1 helper T (Th1) cells to alternative regulatory T cells (Tregs). These findings indicate that systemic administration of hUCP attenuates age-related neuroinflammation and subsequent olfactory dysfunction by modulating peripheral immune balance toward Treg cells, suggesting another therapeutic function and mechanism of hUCP administration.

• Journal of the Korea Fashion and Costume Design Association
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• v.20 no.3
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• pp.15-26
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• 2018

The purpose of this study is to understand the characteristics of body types of adult woman under 155cm in height. To do this, direct measurement data showed that only 660 women aged 20~69 years old and under 155cm tall were classified, and their body type characteristics were analyzed. There are 51 body measurement items used in the analysis. The results of the study are as follows: As a result of the comparison of the body size of all adult women and women under 155cm, it was seen that short women were smaller than the all women, and were flattened with a slightly plump and bendless body. Factor analysis was performed to classify the body type of short women. Six factors including body size, body height, shoulder length and width, waist back length, hip length, and shoulder angle were measured. The results of cluster analysis, using factor scores, were classified into three types. Type 1 is taller among short women and slightly slimmer, and is an A-shape. Type 2 has the largest BMI and was the middle stature among short women It is the most obese body type and is an H-shape. Type 3 is short and plump, with a poor hip and is a Y-shape. As a result of crossover analysis, there was a difference in the body type characteristics of each age group. After all, the body type of the short adult women under 155cm was clearly different from those of all adult women, there was also a difference in the body type among short adult women.

• Natural Product Sciences
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• v.8 no.2
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• pp.44-47
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• 2002

The effects of Eurycoma longifolia Jack on masculine copulatory behaviour were studied in the middle aged male Sprague-Dawley rats, 9 months old and retired breeders after dosing them with 500 mg/kg twice daily for 10 days prior to test. The test lasted for 30 minutes after a 20 minute adaptation period, was carried out on the 11th day during the dark phase of the light-dark cycle (2000-0700 hours) and in subdued light, using a modified copulation cage but with the presence of a piece of mirror of appropriate size to facilitate observation. Results showed that the mean values of EL-1, EL-2 and EL-3 of the control middle aged male rats were 103.20 sec, 91.21 sec and 80.00 sec but were significantly (p<0.05) increased to 118.40-120.20 sec, 101.24-171.28 sec and 100.42-110.21 sec respectively in the methanol-chloroform, methanol-butanol-water and methanol-butanol treated middle aged male rats. However, further results also showed that PEI-1 and PEI-2 of the control middle aged male rats were 182.30 sec and 257.2 sec but were significantly (p<0.05) decreased to 100.42-121.31 sec and 40.21-132.31 sec respectively in the methanol-chloroform-butanol-water and methanol-butanol treated middle aged male rats. In conclusion, this study showed that although E. longifolia Jack continued to enhance the sexual activity of the middle aged male rats by extending the duration of coitus and decreasing the refractory period between the different series of copulation, but to a smaller degree as compared to sexually active, adult male rats (Ang and Sim, 1997).

• Human Ecology Research
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• v.54 no.3
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• pp.227-238
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• 2016

This study investigates the mediation effects of adult children's ambivalence for elderly parents in the relation of psychological well-being of middle aged children with dependence and the intrusiveness of elderly parents that examines the difference of mediation effects by children's gender. We collected data from 659 middle aged children of 40 to 59 years old who have living mother or father. The main findings are as follows. First, there were mediation effects of ambivalence for elderly parents in the relation between psychological well-being of middle aged children and dependency and intrusiveness of elderly parents. The perceived dependence and intrusiveness of elderly parents had a positive influence on the ambivalence of middle aged childen for their elderly parents. Ambivalence for elderly parents had a negative effect on the psychological well-being of middle aged children. In addition, the dependence and intrusiveness of elderly parents did not directly influence the psychological well-being of middle aged children. Second, the mediation effect of ambivalence for elderly parents indicated a gender difference of middle aged children. The dependence of elderly parents affected the ambivalence for elderly parents in the woman group and the intrusiveness of elderly parents only affected ambivalence for elderly parents in the man group. The results were discussed in terms of gender difference.

• Journal of Fashion Business
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• v.4 no.3
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• pp.35-45
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• 2000

The purpose of this research is to offer basic data for the study of men's suit by investigating the wearing conditions of men’s suit. For data collection, a questionnaire was composed of the number of times and the reason of wearing the suit and the number of suits they possessed etc. The subjects were male who aged 25-39 and resided in Seoul, kyunggi and Chungnam region. The results of the research are summarized as the following : 1. The mean age of wearing the suit for the first time is 22.3 years old. 2. A number of times of suit wearing for a week is less than 2 days mostly. In the case of job, office men is wearing suit many times more than others. Most of the adult men is wearing the suit as a ceremonial costume. 3. As a general rule, men have about 1.5 business suits for spring/fall/winter, and few character suit.. Korean adult men like character suit more than business suit. Also their favorite suit brand is Gallaxy and Intermezo.

• Korean Journal of Veterinary Research
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• v.33 no.2
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• pp.321-326
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• 1993

Sixty eight wild rats were caught from Seoul, Kyonggi, Kangwon, Cholla, and Kyongsang provinces in Korea. All of them were confirmed in the same species, Rattus norvigicus. All of sera from wild rats were examined by indirect immunofluorescent test against Hantaan-related virus. Detection of anti-body to Hantaan-related virus were 4 out of 68 rats(5.9%), including 2 of 8(25.0%) rats in Kangwon and 2 of 20 rats(10.0%) in Kyongsang province. No difference of the sero-positive rates between sex of rats tested to Hantaan-related virus was recognized. According to age, four rats with antibodies(1:320~640) to Hantaan-related virus belonged one subadult, one young adult, one middle aged adult, and one old adult, respectively.

• Korean Journal of Veterinary Research
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• v.35 no.3
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• pp.505-513
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• 1995

Seventy wild rats were caught from Seoul city, Kyonggi, Kangwon, Honam, and yongnam provinces. All of them were in same species, Rattus norvegicus, except two R rattus from Kyonggi province. Seventy sera from wild rats were studied by immunofluorescent antibody assay for evidence of infection by spotted fever group rickettsia. The antidody prevalance was 37.14%(26/70) for spotted fever group rickettsia. The sero-prevalence rates for spotted fever group rickettsia antibody was the hightest in Kyonggi province with 55.56%(10/18), yongnam province with 50.00%(10/20), Kangwon province with 25.00%(2/8), Seoul city with 18.75%(3/16), and Honam province with 12.50%(1/8). The sero-positive rates difference between sexes were higher in female with 46.15%(12/26) than in male with 31.81%(14/44) for spotted fever group rickettsia. Twenty six of 68 Rattus norvegicus with antibody for spotted fever group rickettsia were in subadult with 50.00%(6/12), young adult with 38.89%(7/18), middle-aged adult with 35.29%(6/17), and old adult with 33.33%(7/21). No antibody was detected from R rattus.

• Korean Journal of Adult Nursing
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• v.28 no.4
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• pp.424-435
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• 2016

Purpose: This study examined knowledge about cardio-cerebrovascular disease (CVD) and its relationship to health behaviors among middle-aged postmenopausal women with CVD risk factors. Methods: The study was a cross-sectional descriptive study. One hundred and thirty-six postmenopausal women were recruited from outpatient departments of four hospitals. The women were $60.69{\pm}6.5$ years old. Self-reported questionnaires were administered, and waist-hip ratios (WHR) were measured. Results: Among the women, 72.8% reported hypertension, 19.1% reported diabetes, 33.8% reported hypercholesterolemia, and 24.2% reported angina pectoris. Moreover, 73.9% of the women reported not knowing of CVD prevention, and only 26.1% reported exercising regularly. A majority of the women (80.9%) had a WHR > 0.85. Multiple linear regression analysis after adjusting for age and marital status indicated that the risk of myocardial infarction and stroke increased (p<.001). Waist-hip ratio${\leq}0.85$ (p=.022) and living with family members (p=.006) were significant predictors of healthier behaviors ($R^2$=0.21, p<.001). Knowledge of CVD and health behaviors were not correlated. Conclusion: Obese women and women who live alone are no more likely to practice health behaviors aimed at CVD prevention than their counterparts in the sample. Education and exercise interventions are needed, especially for obese women, to promote healthy behaviors among middle-aged postmenopausal women with CVD risk factors.