• The Research Journal of the Costume Culture
• /
• v.20 no.4
• /
• pp.549-559
• /
• 2012

The purpose of this study was to analyze the comfort of sports bras by style and bra cup size. The comfort of wear was measured with compression level. The displacement of breast points (BP) after wearing a sports bra was measured. Study subjects evaluated the comfort level of the compression type and encapsulation type sports bras after walking and running. The results showed that all types of experimental sports bras provided more coverage than everyday bras. The compression type bra placed more pressure on the breast, chest, and under-bust than the encapsulation type bra. The BP distance decreased for all types. The C cup subjects' breasts were raised after wearing the sports bras. The B cup subjects had less comfort with the compression style bra than C cup subjects. The racer back style bra with high neckline and small band girth placed more pressure than others. They were difficult to don and doff and the least comfortable. These results imply that the racer back compression style sports bra was uncomfortable for women with large breast, while the encapsulation style bra with the compressing panel at upper chest was the most comfortable. The bras that shortened BP distance placed more pressure on the breast. But the bra that raised and shorted the distance of BP provided better comfort for large-breasted subjects.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.34 no.1
• /
• pp.67-78
• /
• 2010

This paper analyzes how to measure breast volume and the change in breast volume after wearing a brassiere. Measurement using a breast replica is used to measure the breast volume of 41 women in their twenties. The rate of persons having flat and hemispherical breast are high. The majority of subjects are size 75A, 80A, and 75B, and their under-bust size is 70. The current size specification should be refined for fitting according as the girth under bust decreases. The correlation between breast volume and the circumference of the breasts was high. It was more reliable to set up the cup size of a brassiere using the breast circumference. The mean breast volume is 263.68cc (nude) and the total volume wearing brassiere is 342.05cc. The volume difference according to wearing a brassiere is 78.37cc, which is less than the brassiere volume itself. The results show, the less breast volume of a subject, then the greater volume in wearing a brassiere.

• Journal of Sasang Constitutional Medicine
• /
• v.11 no.1
• /
• pp.281-293
• /
• 1999

1. The backdrop of the study. Accurate diagnasis of the constitution is very important Sasang constitution medicine. This study make research of man's penis and woman's breast, make observation these are significant or not in diagnosis of the constitution. 2. The process. The constitution of the people was diagnosed by QSCCII, specialist, (86 persons, men 39, women 47), the men was taken measure of atony and excited length, thickness of the penis with a rule, thread. the women have a personal interview about her height, weight, the girth of the breast, brassiere cup size. 3.The result. This study shows that Tae-eum-in Is 28 persons(32.6%), So-eum-in 37 persons (43%), So-yang-in 21 persons(24.4%). Man's observation is insignificant statistically, woman's observation is insignificant statistically too.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.38 no.6
• /
• pp.887-895
• /
• 2014

The study provides baseline data on developing ready-to-wear clothes for adult females in their twenties who have finished shaping their bodies and have realized an ideal shape. We analyzed the data from females aged from 20 to 29 in "The $5^{th}$ Size Korea Survey" and "The $6^{th}$ Size Korea Survey", and sorted body shapes into several types according to drop values before analyzing and comparing the characteristics among groups. We also referred to the change by year in the size of upper inner wear. To classify body shapes, three drop values were assigned for bust girth - waist girth, hip girth - waist girth, hip girth - bust girth; through cluster analysis all data were classified into three body types. Type 1 is more like normal body shapes with small drop values at the bust girth - waist girth and well-build lower body. Type 2 is X-shaped body shaped like a fiddle with big drop values at all parts. Type 3 is Y-shaped body with a big drop value at the bust girth - waist girth and well-build upper body. Type 2, X-shaped body, has the majority of distribution in every year, which proved to be the most idealistic body shape. There was a change in the brassiere cup size. Korean ladies in their twenties have larger breasts. The body shapes of Korean females in their twenties are increasingly like those of westerners. Bust girth is a very critical element to set measurements and design patterns for upper wear; consequently, a change in the size of breasts should be considered.

• The Research Journal of the Costume Culture
• /
• v.21 no.1
• /
• pp.81-92
• /
• 2013

Many women feel pain in their breasts while running due to an excessively large degree of breast movement. Therefore, most sports bras pursue a reduction in breast movement. The purpose of this study is to investigate the breast movement reduction effect of a selection of sports bra designs according to the intensity of the sport and the breast size of the wearer. The study measured differences in the vertical movement of the nipple with 4 types of sports bras and 3 exercise speeds(4km/h, 7km/h, and 10km/h). Subjects included women in their 20s with bra sizes of either B cup(n=3) or C cup(n=3). The results of the study are as follows. Breast movement differed according to running speed and breast size; breast movement significantly increased starting with jogging speed(7km/h), and the C-cup group had a larger degree of vertical movement than the B-cup group. A superior effect on breast movement during jogging(7km/h) and sprinting(10km/h) was observed differently by bra cup sizes. To C-cup group, encapsulation-style sports bra, which provides horizontal support across the upper breast and padding inside the shoulder strap and bra cup to ease impact was most effective and next effective style was the compression-style bra with a princess line to cover the breasts solidly. Most style sports bra were effective in the B-cup group. Besides aforementioned encapsulation-style sports bra, the compression-style bra with a band, which presses the breasts against the chest wall, reduced breast movement effectively.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2013.08a
• /
• pp.109-109
• /
• 2013

고주파 가속기의 전자선원의 설계 및 제작검증을 위한 hot-firing station을 설계하였다. 본 장치는 전자총의 빔 사이즈, 빔 전류 등을 측정할 수 있는 기기로 전원장치부, 고진공 챔버, 측정장치부 등 크게 세 부분으로 이루어져 있다. 특히 전원장치는 이중에너지 모드를 구현할 수 있도록 에너지의 크기가 다른 두개의 전자총 펄스를 생산해 낼 수 있도록 설계되었다. 고진공 챔버는 고전압 절연체를 이용하여 제작되었으며, 스크롤(건식) 펌프 와 터보 분자펌프를 이용하여 $10^{-7}$ torr 저/고진공 배기를 수행한 뒤, 이온 펌프를 이용하여 $10^{-8}$ torr까지 초고진공 배기를 수행할 수 있도록 설계하였다. 전자총으로 부터 나오는 전자들의 특성을 분석하기 위하여 패러데이 컵과 YAG 스크린을 설치하였다. 패러데이 컵은 전자빔의 인출 파형및 빔 전류를 측정하고, YAG 스크린은 CCD 카메라와 컴퓨터를 이용하여 전자빔의 균일도를 측정하여 정보를 얻도록 한다. 진공 쳄버의 최대 진공배기는 $10^{-9}$ torr이다.

• Journal of the Korean Home Economics Association
• /
• v.40 no.8
• /
• pp.13-21
• /
• 2002

본 연구의 목적은 유방절제수술을 받은 여성들을 위해 개발한 다섯 종류의 브래지어와 두 종류의 보정물 유형에 따른 착용감과 쾌적성을 검토하기 위한 것이다. 피험자로는 유방절제시술기간이 3년 이상이며 브래지어 사이즈 85에 컵사이즈 A컵인 여성 세 명을 선정하였다. 실험방법은 보정물을 삽입한 브래지어를 하루에 최소 15시간 이상 연속착용하도록 하고 실험복을 착용한 상태에서 피험자들의 일상과 그에 소요된 시간을 기록하도록 하였으며 이 때 착용한 브래지어와 보정물에 대한 느낌을 5점 척도로 표시하게 하였다. 실험기간은 다섯 종류의 브래지어를 하루에 한 가지씩 정해진 순서대로, 처음 5일은 옥보정물과 함께 착용하도록 하고 그 후 5일은 스펀지 보정물과 함께 착용하도록 하였으며 이러한 순서를 두 번 반복하게 하여 총 20일이 소요되었다. 각각의 피험자들에 대해서는 실험이 진행되는 동안 반복적인 면접을 통하여 진행상황을 기록하였으며 아울러 실험복에 대한 제언을 수렴하여 보다 나은 제품개발을 위한 기본 자료화하였다. 실험결과는 다음과 같다. 1. 브래지어에 있어서는 세 명의 피험자가 일치된 결과를 나타내어 일반적인 브래지어 형태와 가장 유사하면서 어깨 끈과 하변밴드 폭만 약간 넓혀준 실험복이 착용감에서 가장 높은 점수를 받았다. 착용자의 편의를 고려하여 앞트임으로 제작한 실험복의 경우에는 앞으로 구부렸을 때 밴드부분이 꺾이는 현상이 생겼으며 피험자들이 모두 뒤트임에 익숙하여 앞트임 브래지어 착용에 불편함을 나타내었다. 브래지어 착장평가에 있어서는 피험자들의 일상적인 행동이나 보정물의 종류가 영향을 미치지 않는 것으로 나타났다 2. 보정물 평가에 있어서는 모든 피험자가 옥가루 재질의 보정물만으로는 수술부위를 자극하는 느낌이 든다고 하였으나 3mm 두께의 스펀지와 함께 삽입했을 때는 아무런 문제가 없는 것으로 나타났다. 또한 보정물의 무게 조절이 가능하므로 실리콘재질의 보정물에서 쉽게 찾아볼 수 있는 무게에 대한 문제를 제기한 피험자는 없었다. 그러나 스펀지로 제작된 보정물에 대해서는 무게가 너무 가벼워 모든 피험자들이 양 쪽 가슴의 균형이 잘 맞지 않는다고 답하였으며 특히, 운동을 즐기고 활동이 많은 피험자의 경우 스펀지로 제작된 보정물에 대해 큰불만을 표시하였다.

• The Korean Journal of Community Living Science
• /
• v.28 no.1
• /
• pp.69-79
• /
• 2017

The purpose of this study was to compare fitting of the upper garment by brassiere cup size and types of bodice block. This study conducted a 3D virtual garment system by applying three types of bodice block (I, II, III) and experimental pattern of the bodice block to 3D avatars of four individuals with the following measurements: under bust circumference of 73.5 cm and bust circumferences of 83.5 cm, 86.0 cm, 88.5 cm, and 91.0cm. The results of the study were as follows. First, for 83.5 cm bust circumference (A Cup), appearance of the three types of bodice block (I, II, III) was appropriate. However, as bust circumference increased in size, shape became inappropriate. The depth and width of the armhole, within 15 cm and 11 cm, respectively, were found to be appropriate. In case of 91.0 cm bust circumference (D Cup), all three bodices (I, II, III) were inappropriate. Second, the results of the draft of the experimental patterns of the bodice block of bust circumference measuring 83.5 cm, 86.0 cm, 88.5 cm, and 91.0 cm in the 3D avatars of the four individuals revealed similarities in the frontal view of the silhouette in the four avatars; in the case of the lateral view of the silhouette, lateral width grew wider as bust circumference of the silhouette became larger, but the shape of armhole showed no changes. The depth of the armhole showed little changes from 15.1 cm to 15.22 cm, and the height of sleeve (armscye depth 13.6 cm within +2 cm) remained similar. The difference in width of the armhole from 11.26 cm to 11.37 cm was rather small. The width of the upper sleeve (8.97 cm) seemed to be appropriate as it remained within the 2-3 cm boundary.

• Journal of the Korea Convergence Society
• /
• v.11 no.1
• /
• pp.285-291
• /
• 2020

There is a growing interest in breast augmentation surgery, which can most effectively maximize femininity, among modern women around the world. However, breast augmentation surgery is considered one of the most terrifying surgeries many women are afraid of, as many cases of its side effects have been reported. As a way to provide a complementary method to deal with it, this study investigated the effects of a non-surgical breast enhancement program by stretching soft tissue of the breast. According to the results, there was no change in body weight and breast elasticity, but there were marked increases in breast cup size, breast diameter and volume of the women who used this program. The external soft tissue expansion system was found to be effective in Korean women's change of breast shape. On the other hand, users should use this system regularly for some period of time, and this would limit their social activities. Therefore, for the effective use of this system, its users should make individual efforts.

• Journal of the Korean Society of Costume
• /
• v.66 no.4
• /
• pp.146-165
• /
• 2016

The aim of the study is to propose ways to improve the break line fit of women's tailored collar vests by modifying the patternmaking process. The study explored the fit effects of experimental vests with a focus on 3 different breast sizes, A, B, and C cups. Women in the ages between 20 and 24 in South Korea were targeted. In order to carry out the objective, the study implemented separate girth measurements for the front and the back of the tailored collar vests, and also allocated different dart amounts on the lapel through the break line according to the different breast cup sizes. The study adopted a 5-point rating scale to perform evaluation of the different fit effects caused by the varying dart amounts given on the experimental vests' break lines. This evaluation was carried out by apparel pattern experts. The results derived from the study were as follows: first, the implementation of separate girth measurements provided originality to the study, as the application of different measurements for the waist back length and the neck shoulder point-to-breast point-to-waist line led to the front panels of the experimental vests having varying slack amounts. Second, break line dart was applied in three different amounts, 0.5, 1.0, and 1.5cm respectively according to A, B and C breast sizes, and as the dart amount increased, extra ease on the break lines was reduced. The dart was applied on the edge lines of the lapel and it was applied from a point which was 6cm above the breast point to the end of the princess line for all the breast cup sizes.