• International Journal of Advanced Culture Technology
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• 제10권1호
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• pp.265-273
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• 2022

The aim of this study is to investigate the relationship between the object ability, basic movement ability, and mathematical ability of young children. Next, through this study, the influence of young children's object manipulation ability and basic movement ability on mathematical ability was investigated. The subjects of this study were 80 children aged 5 years old. As a research tool, the non-mobile movement and mobile movement, the basic movement development test scale, and the young children's picture-mathematical ability test scale were used. This survey was conducted from October 2018 to January 2019. For data analysis, correlation analysis and hierarchical multiple regression analysis were performed using the spss program. As a result of the study, it was found that there was a significant positive correlation between the non-mobile ability, movement ability, object manipulation ability and mathematical ability of young children. It was found that young children's ability to manipulate objects and non-movement abilities had positive effect on their mathematical abilities. The movement ability of young children had both negative and positive effects on mathematical ability, but it was not found to be statistically significant. This study is meaningful in that it investigated the effects of non-mobile movement, mobile movement ability, and object manipulation ability, which are sub-capabilities of basic movement ability, which had not been investigated so far, on the mathematical ability of young children.

• The Journal of Korean Physical Therapy
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• 제26권5호
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• pp.324-330
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• 2014

Purpose: The aim of the current study was to compare the muscle architecture of lower extremity using rehabilitative ultrasound imaging (RUSI) in young adults in Seoul and Hanoi. Methods: The study design was a comparative study of muscle cross-sectional area of lower extremity. Sixty healthy young subjects (Seoul group: 30, Hanoi group: 30) participated in this study. Real-time B-mode RUSI with a 7.5MHz linear transducer was used for measurement of cross-sectional area, pennation angle, and muscle thickness of the rectus femoris, tibialis anterior, and medial gastrocnemius muscles. Independent t-test was used for statistical analysis. Results: Significant difference in cross sectional area of rectus femoris was observed between Korean young adults and Hanoi young adults (p<0.01). Muscle thickness and pennation angle of tibialis anterior in Korean young adults were greater than in Hanoi young adults (p<0.01). In addition, the muscle thickness and pennation angle of the medial part of gastrocnemius muscle were greater in Korean young adults than in Hanoi young adults (p<0.01). In addition, in the results for gender, men had larger muscle architectures than women in both groups (p<0.01). Conclusion: This study, using RUSI, showed significant difference in muscle architectures of lower extremity in a diverse group of young adults RUSI.

• 유통과학연구
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• 제17권12호
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• pp.95-103
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• 2019

Purpose : Promoting startups has increased in importance in labor market policies since the economic crisis. In Korea, the Ministry of SMEs and Startups is also seeking to revitalize youth startups and traditional markets by moving young stores into idle spaces in traditional markets through 'Project to Support the Activation of Youth Mall'. Research into startups in traditional markets is very limited. Therefore, this study looks at the differences between the management performance of young merchants and senior merchants, and looks at the impact of the business period. Research design, data and methodology : It was divided into youth startup and senior startup based on the age of 40 and startup and nonstartup. Based on these criteria, the company intends to compare and analyze sales and margin rates by setting the sales and margin rates with the management performance of the startup and senior startups. In particular, to look at the feasibility of government funded projects for young merchants, the company will look at the changes in sales and margin rates of young merchants and senior merchants over the period of operation. In this study, the analysis was based on the raw data of the Statistics of traditional market in 2017, and the ANCOVA was used. Results : First of all, the sales volume of stores operated by young merchants, was higher than those operated by senior merchants. Next, the margin ratio does not differ from that of stores that are for young people and those. These findings suggest that the profit structure of stores in traditional markets is similar between young merchants and senior merchants. Third, if you look at the performance of new startups based on one year of business period in more detail, it turns out that young startups have improved in sales and margin rates since startups, while senior startups have no difference. Conclusions : While it means that management performance can be improved through support for young startups, it suggests that there is a limit to supporting senior startups. Therefore, this research indicates that the government support projects centered on youth can contribute to the revitalization of traditional markets.

• 디자인학연구
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• 제21권
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• pp.195-204
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• 1997

현대 소비재의 조형 이미지를 한국과 일본의 양국 젊은 세대를 놓고 비교 분석하였다. 그 결과로 한국 젊은 남성과 여성들은 $\ulcorner$정치(精緻)-단순(單純)$\lrcorner$$\ulcorner$실질(實質)-비실질(非實質)$\lrcorner$$\ulcorner$경(輕)-중(重)$\lrcorner$$\ulcorner$화려-수수$\lrcorner$$\ulcorner$우미(優美)-투박$\lrcorner$의 3인자의 이미지로 설명할 수 있다. 현대 소비재에 대하여 한국의 남녀는 동일한 이미지 구조를 갖고 있으며 그에 반해 일본의 남.녀는 이미지 구조에 차이가 있다. 이것은 성별에 따라 중시하는 조형요소가 다르기 때문이라고 본다. 한국의 젊은 남녀는 현대 소비재에 있어 소비재 표면에 처리되어 있는 문양, 장식, 색상의 조형요소에 민감하게 반응하며, 일본의 젊은 여성들도 소비재의 조형의 이미지를 파악할 때 한국의 젊은 남녀와 동일하게 소비재 표면에 처리되어 있는 요소에 민감하게 반응한다. 한편 일본 젊은 남성들은 소비재 표면의 요소보다는 소비재의 가치에 의미를 두고 조형이미지를 파악하고 있다.

• 대한지역사회영양학회지
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• 제5권3호
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• pp.484-492
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• 2000

In an attempt to figure out the relationship between zinc status and taste acuity of old and young women, dietary zinc intake, urinary zinc excretion, and taste acuity were determined for 118 women. Zinc intake was measured by 2-day food records and food frequency method. Urinary zinc excretion was measured from urine samples collected for twenty four hours. Body fat, lean body mass (LBM), and total body water were measured by bio-impedence. Average dietary zinc intake by food record was 4.15$\pm$1.33mg (=35% if Korean RDA) for the old women and 5.41$\pm$2.76mg (=25% of RDA) for young women. When zinc intake was measured by a frequency method, the average intakes of the old and young women were 3.5$\pm$1.7mg 4.5$\pm$1.9mg, respectively. It appears that dietary zinc intake of young women was significantly higher than that of the old women. Average urinary zinc excretion of the subjects was 0.27$\pm$0.16mg in the elderly and 0.24$\pm$0.13mg in young women, which indicated a marginal zinc status. However, zinc status was not significantly different between old and young women. Correlation analysis indicated that zinc intake and urinary zinc excretion were positively related to BMI and LBM in young women. The old women (m=49) showed significantly higher taste detection thresholds than young subjects (n=47) for both sweet and salty tastes. Recognition thresholds for sodium chloride and sucrose were not significantly different between old and young women. The lower the taste thresholds for salty taste, the higher the average dietary zinc intake. However, taste perception concentration was not related to the urinary zinc excretion level.

• 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.

• 지역연구
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• 제35권2호
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• pp.49-57
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• 2019

생애주기단계에서 청년층은 그 사회적위치가 빠르게 변화하는 연령대로, 본 연구는 청년층의 인구이동에 주목하고 주택시장요인을 포함한 지역특성요인과 청년층 인구이동의 관계를 서울지역을 중심으로 실증 분석하였다. 분석결과, 청년층의 이동은 거리와 일자리는 중요한 이동의 원인이 되고 있다. 이외에 주택시장에서의 전세가격이나 주택공급이 청년층 이동에 유의한 영향 요인으로 작용하는 것으로 분석되었다. 또한 서울시내 개별 지역과 이동의 기원지간의 전세가격과 같은 가격의 차이가 커질수록, 주택공급 차이가 커질수록 서울시 청년층의 순전출이 지속될 수 있음을 유추할 수 있다. 분석 결과 일자리의 경우, 청년층 유입을 증가시키는 데 기여하고 있어 고용중심지 주변에서의 청년층 주거수요는 높아질 것으로 예상된다. 따라서 현재 서울시나 정부에서 추진하고 있는 일자리가 많은 지역주변이나 역세권 주변에서의 청년층을 대상으로 한 공공주택을 비롯한 민간의 주택공급이 원활하게 이루어질 필요가 있으며, 저렴한 가격으로 거주할 수 있는 공적 주택이나 민간임대 주택 공급이 지속된다면, 서울시 청년층 전출을 줄이는 데 기여할 수 있을 것으로 기대된다.

• 한국운동역학회지
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• 제29권3호
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• pp.145-155
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• 2019

Objective: The purpose of this study was to compare the physical characteristics (bone mineral density, joint muscle strength) and running biomechanics between older adults and young adult runners to understand the changes of running strategy by aging. Method: Bone mineral density (Dual Energy X-ray Absorptiometry, USA) of lower lower extremity and muscle strength (Cybex Humac Norm [DEXA], CSMI, USA) were measured to identify the physical characteristics of 10 elderly (age: $67.70{\pm}3.30yrs$, height: $1.68{\pm}0.04m$, mass: $67.70{\pm}3.80kg$) and 10 young adults (age: $21.20{\pm}0.42yrs$, height: $1.73{\pm}0.06m$, mass: $72.11{\pm}4.15kg$). Running data was collected by using an instrumented treadmill (Bertec, USA) and 7 infrared cameras (Oqus 300, Qualisys, Sweden). Two-way repeated ANOVA analysis was used to analyze results at a significant level of .05 with Bonferroni post hoc analysis. Results: Compared to the young adult group, the elderly group showed statistically significant difference in physical characteristics and in running characteristics. Elderly runners showed lower BMD and muscle strength compared with young runners (p<.05). In the running parameters, elderly runners tend to show shorter contact time and stride length compared with young runners (p<.05). In the joint angles, elderly runners showed smaller range of ankle motion compared with young runners (p<.05). Finally, elderly runners showed lower level of joint moment, joint power, and GRF compared with young runners in each running speed (p<.05). Conclusion: The running behavior of the elderly performed periodic running was similar to many variables of young adults. However, there were noticeable differences found in the ankle joints and most kinetic variables compared with young adult runners. This discrepancy may propose that elderly runners should consider appropriate running distance and intensity in the program.

• 한국가족관계학회지
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• 제21권4호
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• pp.75-98
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• 2017

Objectives: The purpose of this study was to examine the effects of parent-young adult relationship and self-differentiation on interpersonal problems among 20s. Method: The subjects were 504(195 male, 309 female) young adults in their twenties. The questionnaire was consisted of measures on the Parent-Child Relationship Instrument, Self-Differentiation Inventory, and Short form of Korean Inventory of Interpersonal Problems Circumplex. Descriptive, t-test, correlation, and hierarchical regression analyses were conducted with SPSS 23.0. Results: The major findings are as follow. First, the result showed that there were gender differences in the level of self-differentiation and interpersonal problems, while there were no differences between male and female in parent-young adult relationship. Second, correlational analyses results indicated that parent-young adult relationship was positively related with the level of self-differentiation. However parent-young adult relationship and the level of self-differentiation were negatively related with the interpersonal problems. Third, hierarchical regression analyses showed that parent-young adult relationship and the level of self-differentiation had significant influences on the interpersonal problems(moving toward people, moving against people and moving away from people among 20s). Conclusions: The results indicate that both parent-young adult relationship and the level of self-differentiation need to be considered to reduce young adults' interpersonal problems in counseling situations.

• 운동영양학회지
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• 제23권2호
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• pp.16-21
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• 2019

[Purpose] The purpose of this study was to comparatively investigate the correlation among body composition, resting metabolic rate (RMR), and physical activity (PA) between young and middle-aged Korean adults. [Methods] A total of 53 [male n=23, female n=30] subjects were included in this study, among whom 34 subjects were healthy young adults [male n=18, female n=16] and 19 were middle-aged adults [male n=5, female n=14]. The body composition and RMR of all the participants were measured after overnight fasting (≥8 h). The Korean version of the WHO Global Physical Activity Questionnaire (GPAQ) was used to assess physical activity. [Results] Body composition was not significantly different between young adults and middle-aged adults. Whole-body bone mineral density and bone mineral contents (BMC) were significantly lower in middle-aged adults than in young adults. Total blood cholesterol (TC) and blood glucose levels were significantly higher in middle-aged adults (TC; 195.21 ± 43.34, glucose; 103.57 ± 12.61 mg/dL) than in young adults. RMR was significantly lower in middle-aged adults (1619.57 ± 290.28 kcal/day) than in young adults (1894.37 ± 405.00 kcal/day). In middle-aged adults physical activity (PA). PA (METs, min, EE) was inversely correlated with fat mass (FM, kg, and %) and blood triglyceride (TG) level in young adults. In middle-aged adults, PA showed a significant positive correlation with lean body mass (LBM), FM (%), and RMR. Furthermore, PA EE showed significant interrelatedness with BMC among middle-aged adults. [Conclusion] These results demonstrated that high PA levels enable LBM and RMR maintenance in middle-aged adults. Furthermore, in young adults, more PA is required to induce change in body composition.