• Biomedical Science Letters
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• v.26 no.3
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• pp.186-191
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• 2020

This study was designed to investigate the median nerve cross-sectional area of the upper extremity which is the main cause of CTS in the 20s and 30s. The median nerve cross-sectional area (MNC-area) of each part of the upper limb was measured in healthy 20s and 30s females and males without neurological diseases or other diseases. This MNC-area was compared with the hand, wrist, finger, and other body indexes. The research group was divided into 20s female and male groups, and the 30s were also divided into female and male groups. In the comparison between the ages, the hand, and wrist configurations in the 30s were significantly higher than those of the 20s. The mean median nerve cross-sectional area was significantly larger in the male group than in the female group in both 20s and 30s, and it was larger in both men and women than in the 20s. Hand and wrist configurations were also positively correlated with the median nerve cross-sectional area in both 20s and 30s. The median values of hand ratio and wrist ratio were 2.26 and 0.65, respectively. This median value of hand ratio was inversely correlated with the median nerve cross-sectional area. The median nerve cross-area of the 20s was 6.88~7.38 ㎟ in the male group and 5.69~6.99 ㎟ in the female group, respectively. The median nerve cross-area of the 30s was 6.32~8.89 ㎟ in the male group and 6.15~7.17 ㎟ in the female group, respectively. The mean median nerve cross-sectional area was positively correlated with body mass index in both groups. Most of the variables were higher in their 30s than in their 20s.

• Journal of the Korean Society of Clothing and Textiles
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• v.40 no.6
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• pp.1134-1149
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• 2016

This study identified domestic and foreign golf clothing norms and extended recognition and attitude on golf clothing norms expressed in a golf wear style for golfer groups in their 20s-30s. Domestic golf clothing norms were derived from a theoretical research and case study; subsequently, golfers in their 20s-30s were classified into 4 groups. In-depth interviews were conducted using a serious leisure concept to analyze attitudes and stylistic expressions. Domestic golf clothing norms derived from stipulated and implicit norms varied as a type and situation of a golf course, gender of the golfer, and domestic golfers in their 20s-30s perceived such a point. For golfers in their 20s-30s, attitudes on golf clothing norms and their stylistic expressions showed differences according to gender and leisure type. As for gender characteristics, female golfers focused on 'look prettier' in stylistic expressions through experiences with a double-standard clothing norm; however, male golfers showed strict application and observance of a clothing norm in stylistic expressions compared to female golfers. However, male golfer groups in their 20s-30s as 'casual leisure participants' and those as 'serious leisure participants' showed differences becuase the former showed a tendency to observe clothing norms from other viewpoints and evaluations and the latter showed off their abilities and careers as a means of distinction. As for characteristic of stylistic expressions according to a leisure type, golfers in their 20s-30s showed distinction as serious leisure participants through forming new and independent clothing norms. Research findings are expected to provide an opportunity to reconsidering the influence of clothing norms in young people who have a strong tendency to express clothing style as a means to pursue individuality and taste.

• Fashion & Textile Research Journal
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• v.14 no.4
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• pp.554-566
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• 2012

The purpose of this study was to classify the consumption values of 20's and 30's female consumers, identify the differences among the consumption value groups, and analyze purchase behaviors of imported fashion luxury brands according to the consumption value types. The subjects were 518 women who purchased luxury bags. The results of the study were as follows. First, as a result of cluster analysis to classify the consumption values of 20's and 30's female consumers, 4 groups were identified as "rare and emotional pursuit group", "functional pursuit group", "fashion pursuit group", and "social and conspicuous pursuit group". Second, 4 groups showed different luxury bag purchase behaviors, such as purchase motivation, purchase selection criteria, information source, purchase frequency, purchase cost of one time, purchase cost of year, the number of possession, purchase place, and store selection criteria. Third, rare and emotional pursuit group ranked the first in terms of product, price, and store satisfaction. Therefore, consumption values were identified as the important factor suggesting purchase behaviors of female consumers in 20's and 30's.

• Journal of Industrial Convergence
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• v.22 no.2
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• pp.135-141
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• 2024

This study aimed to analyze the characteristics of health check-up recipients in their 20s and 30s in Korea and identify factors influencing the participation rate in order to enhance the rate of health check-ups. The study population and methods utilized data from the 8th year of the Korea National Health and Nutrition Examination Survey, specifically the 2nd year (2020), and targeted 1,453 Korean residents aged between 20 and 30. The factors affecting health check-up participation were divided into sociodemographic factors, health behavior factors, mental health factors, and medical utilization factors, and both simple logistic regression analysis and multiple logistic regression analysis were conducted. The analysis results showed that educational level, marital status, type of health insurance, employment status, and subjective level of health were the factors influencing health check-up participation among Korean individuals in their 20s and 30s. These research findings can serve as foundational data for improving the health check-up participation rate among individuals in their 20s and 30s.

• Fashion & Textile Research Journal
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• v.13 no.1
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• pp.82-90
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• 2011

This study examines if men in the 20's and 30's have different preference for bag types according to their age and gender-role identity types in order to provide foundational data for the male bag market to segment its customers and establish marketing strategies. Total 288 questionnaire sheets were distributed to 186 men in the 20's and 102 men in the 30's residing in Busan. First, according to the result of analyzing their preference for bag types, adult men in the 20's and 30's preferred cross bags the most. It was also shown that men who are feminine or androgynous prefer back packs, shoulder bags, and tote bags to the other two types. Second, about cross bags, men in the 20's showed a higher rate of having two or three than those in the 30's. Men in the 20's possessed back packs more than those in the 30's. And men tend to show a lower rate of having shoulder bags compared with that of cross bags or back packs. Men in the 30's possessed briefcases more than those in the 20's. Masculine men had more briefcases than the other types of bags, and androgynous men tend to have more tote bags than the other types of bags. Third, men in the 20's and 30's all deemed that back packs go well with the casual style. Men in the 20's regarded shoulder bags are the type of bags that harmoniously matches all styles including casual or semi-suit; however, men in the 30's think they only suit casual or semi-suit. And it was also found that men in the 20's think briefcases are the type of bags that goes well with various styles of clothes while men in the 20's consider they are the type of bags only matching suits.

• The Korean Journal of Food And Nutrition
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• v.33 no.3
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• pp.237-250
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• 2020

In this study, the Korea National Health and Nutrition Examination Survey in 2016 examined the nutrient and food intake of women in their 20s and 30s according to the number of meals a day, and the results were as follows: The study included 256 women in their 20s and 474 women in their 30s. Women in their 20s and 30s ate two meals a day, indicating that the notion of three meals a day was gradually changing to two to three meals a day. Those in their 20s and 30s who eat one, two or three meals a day were consuming less than the estimated energy requirement of the DRI for Koreans 2015. The vitamin A and C were eating less than the recommended intake in all meals. In the case of minerals, calcium was taken less than the recommended intake in all meals, but sodium was taken above the goal intake in all groups. Women in their 20s and 30s must reduce their intake of saturated fatty acids and sodium, and increase their intake of vitamins A, C, calcium, and potassium. Women in their 20s and 30s drank a lot of coffee, ate baechu-kimchi and rice frequently per week.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.3
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• pp.201-217
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• 2014

There is likely to be a fit problem when women aged in their 30s-40s purchase down-age clothing from brands that target women in their 20s. To identify the part of the lower body that causes the fit problem, the sizes and types of lower body of women in their 30s-40s were compared with those of women in their 20s. The data for this study was from the 2010 Size Korea survey of body measurements of 1675 female adults in their 20s-40s. To examine differences in the average sizes of the lower body between women in their 20s and 30s-40s, descriptive statistics and t-tests were conducted. Factor and cluster analysis were used to classify body types by age groups. On the whole, compared to women in their 30s-40s, women in their 20s were found to be higher for all height items and smaller for size, thickness and width items. The result of the Glycemic index analysis showed that the body type of women in their 20s was generally larger than that of women in their 30s-40s. In addition, women in their 20s had a large drop value compared to those in their 30s-40s, whereas flatness of body cross section was bigger in the group of women in their 30s-40s. Four factors related to the lower body type of female adults in their 20s-40s were identified in the factor analysis, and three categories of body type were identified by cluster analysis. A Type 1 individual had abdominal obesity and chubby lower limbs, Type 2 had short legs and slightly chubby lower limbs, and Type 3 had long legs and a skinny lower body. A significant number of women in their 30s-40s were included in the Type 1 group, which was the least common category for women in their 20s.

• Journal of muscle and joint health
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• v.30 no.2
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• pp.138-146
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• 2023

Purpose: The purpose of this study was to examine knowledge, health beliefs and health promoting behavior about osteoporosis in working women in their 20s and 30s. Methods: A survey was conducted among working women in their 20s and 30s who visited the health promotion center of B Medical Center in B Metropolitan City. The data were collected from December 2021 to March 2022 using structured self-reported questionnaires. SPSS/WIN 25.0 program was used to analyze the data. Results: Factors influencing health promoting behavior about osteoporosis in women in their 20s and 30s were in the order of "good" subjective health status (β=.47, p<.001), "moderate" subjective health status (β=.36, p<.001) and knowledge (β=.18, p=.015). These factors explained 12.4% of health promoting behaviors about osteoporosis. Conclusion: The results indicate the need to develop and implement healthcare programs that can improve the health status and provide knowledge to improve health promoting behavior about osteoporosis in women in their 20s and 30s.

• Fashion & Textile Research Journal
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• v.20 no.6
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• pp.733-743
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• 2018

This study aimed to investigate whether women's wear brands' sizing systems for pants item are reflecting body size and shape of their target age customers. This study classified 17 women's wear brands into three target age groups (20-30s, 30-40s, and 40-50s) and surveyed their body sizing systems of pants item. Distribution of waist circumference and hip circumference of brands' sizing systems were compared with size distribution of women in the 7th Size Korea data. The sizing systems of brands targeting 20-30s covered 28.3% and those of brands targeting 40-50s covered 27.3%, while those of brands targeting 30-40s covers 46.6%. Regarding the body types, 80% of 20-30s target brands reflected normal type which is the average body type. However, all 40-50s target brands reflected normal type while 57.8% of women aged 40-50s had large waist shape. The 30-40s target brands reflected body types the best among target age groups since the body shape distribution of the brands was similar to that of 30-40 year old woman in Size Korea. For each age group, 6 sizes with 25.2~27.8% coverage rates were proposed. The 70-91, 73-91, 73-94 sizes were overlapped between the 20-30s and the 30-40s groups. The 76-91, 76-94, 79-94 sizes were overlapped between the 30-40s and 40-50s groups. Pants size has been found to increase in waist circumference compared to hip circumference as age increased.

• Fashion & Textile Research Journal
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• v.13 no.4
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• pp.487-498
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• 2011

The purpose of this study was to classify the lifestyles of 20's and 30's male consumers, identify the differences among the lifestyle groups, and analyze clothing values and buying behaviors according to the lifestyle types. The results of the study were as follows. First, as a result of cluster analysis to classify the lifestyles of 20's and 30's male consumers, 4 groups were identified as "adventurous and self-accomplishing type", "positive and socially active type", "active and trend seeking type", and "practical and information-oriented type". Second, 4 factors of Utilitarian Value were classified as "symbolism", "diversity of wearing purpose", "convenience of management", and "physical activeness". Third, 4 factors of Hedonic Value were extracted as "pursuit for confidence", "pursuit for sexual sensitivity", "pursuit for trend", and "pursuit for personality". Fourth, upon analyzing the differences of clothing values based on lifestyles, 4 groups considered the most important value as the pursuit of sexual sensibility. Fifth, the male consumers in 20's and 30's purchased to express individuality and made their own decision on buying the casual wear. Based on these results, adventurous and self-actualizing type and active and trend seeking type were 518 of 684 and represented male consumer in 20's and 30's.