• The Korean Journal of Physiology and Pharmacology
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• 제10권5호
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• pp.283-287
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• 2006

Although estrogen is known to playa role in fatty acid metabolism, it remains unclear whether fatty acid oxidation in mature female rats differs from fatty acid oxidation in peri-pubertal young rats. In this study, we measured fatty acid metabolism in the skeletal muscles and livers of 5 and 50 weeks old male and female rats. The rate of palmitate oxidation in the liver and gastrocnemius red in the 50-week-old female rats were elevated as compared to the 5-week-old females, whereas there were no differences in the male rats. The rate of palmitate oxidation in the gastrocnemius red was correlated inversely with intra-abdominal fat mass in the 5-week-old male and female rats, whereas the palmitate oxidation rate was positively correlated with fat mass in the liver and gastrocnemius red in the 50-week-old rats. HOMA-IR and plasma insulin levels were positively correlated with intra-abdominal fat mass in the pooled 50-week-old male and female rats, but this correlation was not apparent in 5-week-old rats. In summary, the rate of fatty acid oxidation measured in the middle-aged adult female rats was significantly higher than those measured in the peri-pubertal young female rats. This difference may be attributed to the influence of ovarian hormones.

• 센서학회지
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• 제25권1호
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• pp.20-26
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• 2016

The bioelectrical impedance (BI) for the young and the elderly was measured using bioelectrical impedance spectroscopy (BIS). First, while applying a current of $600{\mu}A$ to the foot and hand, BI was measured at 50 frequencies ranging from 5 to 1000 kHz. The BI for young subjects was considerably lower than that for old subjects since young subjects have more lean mass (hydration). The prediction marker was 0.74 for young subjects and 0.78 for old subjects. Second, a Cole-Cole diagram was obtained for young subjects and old subjects, indicating the different characteristic frequencies. At 50 kHz, the average phase angle was $7.8^{\circ}$ for young subjects whereas that was $6.1^{\circ}$ for old subjects. Third, BIVA was analyzed for young subjects and old subjects. The vector length was 210.89 [${\Omega}/m$] for young subjects and 326.12 [${\Omega}/m$] for old subjects. At 50 kHz, the resistance (R/H) and the reactance ($X_C/H$) divided by height were 208.94 [${\Omega}/m$] and 28.68 [${\Omega}/m$] for young subject, and 324.33 [${\Omega}/m$] and 34.09 [${\Omega}/m$] for old subjects.

• 대한간호학회지
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• 제40권3호
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• pp.400-410
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• 2010

Purpose: The purpose of this study was to investigate the factors that influenced the health-related quality of life of young-old (65-74 yr) men, old-old (75-84 yr) men, and oldest-old (85 yr or above) men in vulnerable aged received home care from public health center. Methods: The participants for this study were 318 aged Korean men living in D city. The data was collected from August to October, 2009 using structured questionnaires. Chi-square, One way ANOVA, Duncan test, Pearson's Correlation Coefficient and multiple regression with the SPSS WIN 14.0 program were used to analyze the data. Results: There were statistically significant differences among young-old, old-old, and oldest-old men regarding the health-related quality of life, health promoting behavior, IADL (Instrumental Activities of Daily Living), rehabilitation, depression, and social support. The model including variables related to physical, psychological, and social aspects of life, explained variance of the health-related quality of life of aged men differently, such as 39.6% of young-old, 35.4% of old-old, and 47.0% of oldest-old. Finally, IADL and social support were predictors in explaining the level of health-related quality of life among vulnerable old men regardless of age. Conclusion: Based on the findings of the study, nursing interventions should be developed to improve health-related quality of life of vulnerable aged men according to age differences.

• 보건행정학회지
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• 제33권2호
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• pp.141-156
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• 2023

Background: As the population rapidly ages, older adults are increasingly likely to experience mobility problems. This study aims to explore the characteristics related to an elderly person's willingness to live in a nursing home if they have mobility problems Methods: This study analyzed data from 9,917 older adults (5,976 young-old and 3,941 old-old) obtained from the 2020 National Survey of Older Koreans. The dependent variable was the intended place of residence for older adults with mobility problems. Independent variables included various characteristics: (1) sociodemographic and social support, (2) health and functional status, and (3) residential environment. Rao-Scott chi-square tests and survey logistic regression analyses were performed for the young-old and old-old, respectively. Results: The intention to live in a nursing home was significantly different between the young-old (30.4%) and the old-old (34.7%) (p=0.009). According to fully adjusted multivariable analyses, for the young-old, the odds ratio of intending to live in a nursing home was significantly higher in social security benefit recipients (1.45; 95% confidence interval [CI], 1.06-1.97) compared to other individuals. The odds ratio was higher in unmarried (divorced, separated, widowed, or never-married) individuals for both young-old (1.41; 95% CI, 1.22-1.63) and old-old (1.34; 95% CI, 1.09-1.65) age groups, compared to their respective married counterparts. Conclusion: The results of this study suggest that in an aging society, health and social policies should be designed considering the different characteristics of the elderly to improve their health, function, and quality of life.

• 한국환경과학회지
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• 제29권2호
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• pp.145-154
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• 2020

The purpose of this study is to examine the differences of use behavior and environmental perception of a park and to analyze the influence of environmental perception factors on park satisfaction among 7 parks in Suseong-gu, Daegu. The data from the 255 questionnaires of young adults (30-59) and old adults (more than 60) who use the park more than once a week were used for the analysis. In terms of park use behavior, young adults used the park for walking and jogging mainly on weekday evenings, while old adults used the park for walking and rest mainly during weekday daytimes. In addition, old adults used the park more times a week than young adults, and spent more time in the park. In the analysis of the environmental perception of the park, similar results were found in both age groups but overall, old adults were more satisfied with the park environment than the young adults. As a result of analyzing the influence of environmental perception factors, it was determined that park satisfaction in young adults has a significant influence on 'use amenity', 'use convenience', 'facility suitability', and 'landscape diversity' in this order. On the other hand, park satisfaction for old adults has an influence on 'use amenity', 'facility suitability', and 'use convenience' in this order. The findings of this study can be used as an effective basic data for future park planning considering age groups.

• 대한간호학회지
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• 제42권2호
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• pp.291-301
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• 2012

Purpose: The purpose of this study was to investigate homebound status and significant related factors for community-dwelling female elders according to age. Methods: The participants were female elders over 65 years of age registered in public health centers. Data were collected by interviewing the elders, who voluntarily completed the entire survey. For data analysis, descriptive statistics and multiple logistic regression were performed using SPSS version 18.0. Results: There were statistically significant differences in homeboundness and related factors between the young-old (65 to 74 years of age) and the old-old (75 years of age or older). The level of homeboundness of the old-old was higher than that of the young-old. Multiple logistic regression showed, timed "up and go", depression, and fear of falling as significantly associated with homebound status of the young-old, while hand grip strength (right), timed "up and go", static balance ability, severity of urinary incontinence, and fear of falling as significant for the old-old. Conclusion: The findings of this study indicate that homebound status and related factors for elders are different according to age, and therefore, interventions to prevent and help homebound elders get over being homebound should be developed according to age.

• 대한인간공학회지
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• 제23권3호
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• pp.111-119
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• 2004

In this study, we analyzed the old`s characteristics for depth perception in comparison with the young`s as a basic study for universal design in field of products or facilities. Twenty three of the old and twenty two of the young had participated and the depth perception apparatus was used in this experiment. Gender, viewing distance, and age were considered as factors and the differences of depth perception were analyzed for each experimental condition. In the result, a significant difference was not detected on gender, but significant differences were detected on age and viewing distance. That is, we can see that the old is remarkably worse than the young on depth perception task. Therefore, it means that these characteristics have to be absolutely considered in user interface design to improve the old`s accessibility for products or facilities.

• 대한음성학회지:말소리
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• 제25_26호
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• pp.52-64
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• 1993

This paper aims to explore the rhythmic phenomena of standard Korean by an experimental phonetic method. A total of 16 informants taking part in this experiment were divided into four groups : old males(OM) and old females(OF) in their fifties and young males(YM) and young females(YF) in their twenties. The informants were asked to read speech data consisting of two rhythmic units, each of which began with a stressed syllable with a long wowel. Starting with the frame / 'ma:1 'ma:nta /, the first rhythmic unit was expanded up to five syllables in all while keeping the second rhythmic unit constant with a view to investigate the pattern of increase in the interstress time interval. The results of this study are as follows: 1. There is a considerable difference between yen and old generations with respect to the duration of interstress interval . The young generation tends to speak faster than the old generation. This observation is supported by difference in the interstress intervals as exhibited by OM(389.66), OF(473), YM(275.55), YF(285.83) in the test frame '말 많다' ['ma:1 'ma:nta]. 2. Young and old generations showed a different tendency in the increase rate of duration between mono-syllables and polysyllables. In other words, the rhythm of young generation shows the tendency of syllable-timed language whereas that of old generation clearly leans towards the stressed-timed language.

• 농촌의학ㆍ지역보건
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• 제36권4호
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• pp.207-217
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• 2011

본 연구는 노인이 하나의 동일한 성격을 가진 집단이 아니라 연령에 따라 다양한 경험과 세대 차이가 있는 하위 집단으로 이루어져 있다는 것을 전제로 하여 65~75세 미만의 전기노인과 75세 이상의 후기 노인들의 특성과 개인별 건강행태 특성, 그리고 현재의 건강상태 등을 비교하고자 하였다. 이를 위하여 상주시 관내 24개 읍 면 동 지역의 경로당 이용자 617명(전기노인 287명, 후기 노인 330명)을 대상으로 설문 조사를 실시하고 실태를 비교분석한 결과는 다음과 같다. 인구사회학적 특성에 따른 결과는 남 여 모두 학력과 직업, 결혼상태, 동거가족에서 전 후기노인간에 유의한 차이가 있었다. 주 3회 이상 10분 이상 걷기 횟수는 남자 후기 노인이 전기노인에 비해서 유의하게 높았고 수면 시간은 남자와 여자노인 모두 전기노인의 수면시간이 후기노인에 비해서 유의하게 많았다. 질병 이환율은 여자 후기노인이 전기노인에 비해서 유의하게 높았고 제시한 16가지 계통의 질병중에서 남자 노인은 신경통 관절염이, 여자노인은 고혈압이 전기노인에 비해 후기노인의 이환율이 유의하게 높았다. 대상자의 생활수행능력은 경로당을 이용하는 건강한 노인이라는 특성이 반영되어 ADL(일상생활수행능력) 6개 항목을 모두 스스로 실천하는 응답자는 96.4%, IADL(수단적 일상생활능력) 6개 항목을 모두 실천하는 응답자는 90.8%로 매우 높게 나타났다. 건강상태에서 여자는 스트레스와 자살을 생각해본 경험이 후기노인이 전기노인에 비해 유의하게 많았고, 구강건강 상태와 청력, 시력은 남자와 여자 모두 전기노인이 후기노인에 비해서 유의하게 좋은 것으로 나타났다. 전 후기 노인의 건강행태와 건강상태에 대한 비교에서 남자는 주 3회 이상 10분 이상 걷기, 수면시간, 구강건강, 청력이, 여자는 수면시간, 스트레스, 청력, IADL이 유의한 변수로 분석되었다. 이상의 연구에서 후기 노인은 전기 노인에 비해서 인구사회학적인 특성에서 취약하며 이환된 질환의 수는 많았으나 규칙적으로 운동을 하는 노인은 적었다. 또한 신체활동능력과 정신건강 그리고 구강건강, 청력, 시력이 전기 노인에 비해서 좋지 못하였다. 따라서 후기노인에게 나타나는 신체적 정신적 건강의 취약성을 노화과정의 하나로만 볼 것이 아니라 연령층에 따라 나타나는 다양한 특성중의 하나라고 받아들이고 전 후기 노인들의 건강행태와 건강상태의 특성에 맞춘 다양한 질병예방, 건강 증진프로그램을 개발하고 적용할 수 있는 국가적 차원의 관리와 지원이 요구된다.

• 한국농촌건축학회논문집
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• 제20권2호
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• pp.29-36
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• 2018

Even in modern times, we are accustomed to the lifestyle of floor heating system in which the floor is heated for warmth like Ondol, which is the traditional Korean heating system. So, this study was designed to understand the preferred floor temperature through the questionnaires targeting the local residents living in K region. This study would also find out the floor temperature which is preferred by young people and old people through the experiments. The findings are as follows; (1) the old people do not prefer the temperature higher than young people do. It was found that the old people prefer the floor temperature of $40^{\circ}C$ under the air temperature of $20^{\circ}C$ or the floor temperature of $41^{\circ}C$ under the air temperature of $20^{\circ}C$. (2) Both young people and old people tend to like the average skin temperature of $35.5^{\circ}C$. The skin temperature which both young and old people like was $35.2^{\circ}C$ under the air temperature of $24^{\circ}C$ and the skin temperature preferred by young people was $0.4^{\circ}C$ higher than that preferred by under the air temperature of $20^{\circ}C$ (p<0.01). (3) It was found in the questionnaires that the young people prefer the higher floor temperature in terms of age and that the people who get older in their 50s or higher tend to prefer the lower temperature.