Objective: The aim of this study is to analyze the change characteristics of boys among the ages of 13 and 18 years. This study is based on the $4^{th}$ to the $6^{th}$ national anthropometric survey(Size Korea) data. Background: Many changes can affect the body characteristics compared withthe past. The significant changes were shown in Pepsi generation according to the report of national anthropometric survey of Korea 1997. Method: The subjects of the survey were 1,899 boys of the $4^{th}$ Size Korea, 1,587 boys of the $5^{th}$Size Korea and 2,317 boys of the $6^{th}$ Size Korea, who were from 13 to 18 years old. The change characteristics were analyzed withanthropometric measurements, height index value and proportion. Results: Stature was increased in 17~18 years old age group of the $5^{th}$ and the $6^{th}$ Size Korea and height items of the lower body showed the tendency to increase as the $6^{th}$ Size Korea over the time. In the case of circumference items, the tendency to increase in the $5^{th}$ and the $6^{th}$ Size Korea was observed. If the $5^{th}$ and the $6^{th}$ Size Korea were compared, there were no changes of other circumference items but chest circumference of the $6^{th}$ Size Korea was decreased in comparison with the $5^{th}$ Size Korea. Waist breadth(natural indentation) was increased in the $6^{th}$ Size Korea in spite of chest breadth was decreased in the $5^{th}$ and the $6^{th}$ Size Korea. And shoulder length, biacromion length and bishoulder length were decreased. The proportion of chest circumference, abdominal extension circumference and hip circumference to waist circumference and the proportion of chest breadth to waist breadth(natural indentation) showed the tendency to decrease as the $6^{th}$ Size Korea over the time. Conclusion: There was no change of stature excluding 17~18 years old. Circumference items showed tendency to increase as the $6^{th}$ Size Korea over the time. Shoulder and chest breadth became narrow. The somatotype changed to board chest with narrow waist in comparison with the previous. Application: In this way, the body size of 13~18 years' old boys changes. If these change characteristics reflects to the school uniform design, research for the pattern development, and etc., these will be able to improve fit and satisfaction of clothes.
This study analyzed the lower body type of 30's Korean men to develop a slim-fit pants pattern. As the analysis data, direct measurement data of anthropometric measured value in the 6th Size Korea(KATS, 2010) was used as basic data with 481 men in 30's as analysis objects. The result are as follows. First, the result of analyzing factors for the lower body type classification indicated five factors. Second, the result of executing group analysis (with the independent variable of 5 clusters extracted from the factor analysis)classified the following three types. Type 1(36.8%) displayed a medium height of lower body type, small waist and hip, slim and fit body type with a slim shape between the knee and ankle. The shape between the waist and hip had characteristics of a slight curve and short length. Type 2(35.6%) displayed lowest height of a lower body type that was large and thick between the waist and the hip. The drop value of the waist and the hip was small; therefore, the body type was flat with a minimal curve. The underpart type (below the knee) was the thickest and the length was short. Type 3(27.7%) displayed the highest lower body type, a medium level waist size, flat and narrow waist and belly. This body type had a curve with big drop value of the waist and the hip, lower part from the hip to the ankle (including the knee) and a thick calf with along leg.
The purpose of this study was to analyse the body sizes of $7{\sim}12$ years elementary school girls and also to categorize KS size dimensions by the detailed information of ages and body shapes. For the study, the data of SizeKorea(2004) was analysed. Height, bust, waist, hip, the ratio of waist to height and hip to height were significant between age groups, but the ratio of bust to height was not. Therefore, the increase of bust size was resulted in growth of bust circumference, instead of bust volume. In the same height group, over 11 year girls had smaller waist, while over 12 year girls had bigger hip. For Grouping girls by ages and body shapes, the ages were divided into 2 groups, under 10 years old and 11 to 12 years old. The body shapes classified into 3 groups 'Stout-shape', 'Middle-shape', and 'slim-shape', by the ratios of bust to height and hip to height. 'Stout-shape' was significantly big at the almost sizes, but 'Middle-shape' was significantly big at only circumferences, not lengths. In addition, drop(the difference between bust and hip) and lower-drop(the difference between waist and hip) were in inverse proportion to the ratios of bust to height and hip to height. It meant the increases of bust-ratio and hip-ratio of 'Stout-shape' were resulted in overweight, rather than female matureness. The distribution of sizes over 0.5% were grouped for grading system and the subtotal percentiles of each group were calculated for industrial data. The groups which covered more than 10% of consumers were 2 to 6 and the 1 or 2 groups for 'Stout-shape' were also observed, so that children's ready-to wear companies could use them efficiently for their own consumer target.
The purpose of this study was (1) to classify the lower body of young women, (2) to investigate the three-dimensional characteristics of each lower body type. The subjects for direct anthrophometric measurements were 330 female college students aged from 18 to 25. Thirty variables(16 directly obtained from the anthropometric data and 14 indices) were used for lower body classification. The data were statintically analyzed by the principal factor analysis and the cluster analysis. Factors extracted were used as variables for the cluster analysis. To detect three-dimensional characteristics of each lower body type, horizontally sectioned overlap maps were obtained by the moire photography. The results obtained from this study were as follows: The lower body of Korean young women into five groups according to their lower body shapes. 1) Group 1(18.9% of the total) is characterized by a shorter and thinner lower body, no dropped hip with a close size between hip and waist. 2) Group 2(21.3% of the total) is characterized by longer lower body and average dropped hip with the most differences between hip and waist size. 3) Group 3(18.6% of the total) is characterized by their average hip and waist sizes but with the most dropped hip. 4) Group 4(22.9% of the total) is characterized by their comparatively fat lower body, almost average dropped hip and more differences between hip and waist size. 5) Group 5(19.2% of total) is characterized by the fattest and relatively longer lower body, least dropped hip with less differences between hip and waist sizes.
This paper presents a waist pressure evaluation method in human sensibility using a electroencephalogram(EEG) signal. For this objective, a size-controllable waist-belt is used. First of all, EEG signals for relaxed state are acquired. Then, the waist-belt of the subject is tightened about 90% of normal state. After a few minutes, the belt of the subject is released. Some necessary preprocessing is performed on the acquired signals, Linear Prediction (LP) coefficients are utilized as the feature parameters extracting the characteristics of EEG signal, and a multi-layer neural network is used for indicating the state of body pressure. The results of the method showed 77.2% of coincidence with body pressure states. This may be compromising results for ssubject-independent sensibility evaluation using EEG signal.
This study initiated research aligned with the body positivity movement, aiming to explore size diversity for groups facing relative size discrimination due to their deviation from average body types. Using KS adult women's apparel dimensions as a reference, jackets were developed for women in their 20s to 30s who belong to the small petite-size (S[P]) category, which is characterized by a height under 155cm (petite) and a bust-circumference from 72cm to less than 82cm (small). Using 3D virtual-fitting, we conducted experiment-pattern production and refinement and subsequent real-fitting evaluations by participants to objectively validate aesthetics and comfort. The study's findings are as follows: First, utilizing a 3D virtual-fitting program by identifying 'creases' and 'garment pressure points' in the jacket appearance, experiment patterns were refined and real jackets were produced. This approach addressed challenges in recruiting participants with specific body types and allowed for efficient research in terms of cost and time. Second, through real-fitting evaluations, basic-fit and slim-fit jackets labeled as <79-88-150> were developed for the S(P) size. we presented 'size spec' and 'ease allowance' for jackets by waist fit. Both fits received positive evaluations with approximately 53.5cm sleeve length, and 11.7cm shoulder length. The ease allowances for the basic-fit jacket were approximately 9.2cm at the bust circumference, 12.8cm at the waist circumference, and 6cm at the hip circumference. Similarly, the slim-fit jacket exhibited ease allowances of about 4.8cm at the bust circumference, 4cm at the waist circumference, and 4cm at the hip circumference, receiving positive evaluations for aesthetics and comfort.
This study investigates and analyzes the amount and shape of the front waist dart of the bodice and investigates the dart division method by bust size. Measurements at 5 arm positions were taken from 15 subjects. Clothing tests were given to 6 of the subjects. The conclusions were as follows: 1) Front Body surface changes were occurred around armpit and they were caused by the wrinkles of the armpit 2) The curved dart line was more appropriate for use with C cup, the large bust body, than the linear line. The changes of the dart amount at arm movements had different types by bust size. 3) Patterns for A & C cup body were adequate to divide the dart amount by 3 darts such as under the B.P., under the anterior armpit and side line, or to aggregate to 1 dart under the B.P. For the B cup body, however, the suitable pattern to use was the total dart amount divided by 1~2 darts and decreasing the waist line at the side line should be avoided.
The study purpose was to investigate the jacket-fit satisfaction level of men in their 20s and 30s, using body-scanning data and a questionnaire. Thirty-five men were scanned using a 3D body scanner. The participants were divided into three groups (Small, Medium, and Large) based on their chest-circumference measurement. Their levels of satisfaction with the fit of their tailored jacket were compared by group. Chest, waist, and hip circumferences increased substantially as group size increased. The M-group was mostly satisfied with all body-site views. The S-group was especially dissatisfied with height, back width, waist circumference, and upper-arm circumference. The L-group was especially dissatisfied with waist circumference and hip circumference. The majority of the participants preferred the jacket closely fitted to their body. More than half of the participants thought finding a jacket of suitable size was difficult. When purchasing ready-to-wear jackets, the S-group and the M-group considered shoulder width important, while the L-group considered chest circumference the most important area. When evaluating the fit of ready-to-wear jackets, the L-group evaluated chest circumference, back width, and waist circumference as poor fits. The M-group evaluated sleeve length and shoulder width as poor fits, and the S-group agreed with respect to sleeve length. Body-satisfaction levels and matching jacket-satisfaction levels differed by body-size group, as did areas that need improvement. The conclusion is that size-group analysis using 3D body scanning can be utilized effectively for jacket-fit analysis. The findings of the current study can be applied to improving jacket fit among young male consumers.
This study provides information on how to improve the wearing sensation and the fit of slim-fit jeans through an analysis of actual wearing conditions and dissatisfaction. The study is based on a questionnaire survey. A survey was conducted on 296 women in their 20s living in Korea to analyze wearing dissatisfaction with slim-fit jeans. The study used descriptive statistics for analysis using SPSS Statistics Ver.23. Surveys on the actual situation of wearing jeans and level of dissatisfaction indicated that most women in their 20s mainly wore slim-fit jeans and were aware of the size of their jeans. Most tended to double-check the size of the jeans, indicating that the inaccurate sizing system of slim-fit jeans caused confusion for consumers. In addition, the results of the survey on the most considered parts of the body when consumers buy jeans are waist, thigh and leg length. They insisted that their waists were thin and their thighs were thicker than their waists; so their pants would not fit and they were obese. There is a problem between waist size and thigh size; therefore, it is necessary to develop new patterns for slim-fit jeans with improved fit around the waist area that can improve the negative results of surveys on the level of dissatisfaction, indicating discomfort in the waist, belly, and thigh areas while wearing slim-fit jeans.
This study analyzed the reality of avatar size when it was automatically changed by different height and waist circumference inputs. This study focused on analyzing 22 of 28 avatar parts created by the 3D Clo virtual fitting program, based on the height and 'waist circumference of 2,247 woman samples from the $6^{th}$ Size Korea survey data. The 'waist back L'. and 'bishoulder L'. of the avatars were shorter than the bodies; however, the avatars' 'waist H'. and 'arm L'. were longer. Differences between the avatar and body increased in the taller groups. The body proportion of tall avatars was more distorted than small avatars. There were also some exaggerations in some circumferences. The 'bust C'. of the avatar was larger in the group with thin upper torsos; however, the 'hip C'. and 'upper arm C'. were larger in the group with thick upper torsos. The avatar torso silhouette of each somatotype was not representative of the real body silhouette as the 'hip C'. and 'bust C'. always increased together.
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