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Article
Publication date: 9 April 2020

Jinhee Park and Yun Ja Nam

Fracture experiments on real human bodies to examine the protected positions and protective devices for the development of protective clothing to manage fractures is exceedingly…

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Abstract

Purpose

Fracture experiments on real human bodies to examine the protected positions and protective devices for the development of protective clothing to manage fractures is exceedingly difficult. Thus, the experimental design will have limitations, more of which are imposed if subjects are elderly people. To circumvent these limitations, this study proposes a finite element model of the hip joint in elderly women with virtual impact simulations that can replace actual fall and impact tests, and examine the positions and characteristics of fractures resulting from taking a fall.

Design/methodology/approach

The hip joints were modeled after the average horizontal surface size and cross-sectional shapes of the lower extremities (waist to knee) in 439 elderly Korean women in that age group. The model was composed of bones, cartilages, and soft tissue.

Findings

The fracture was examined by comparing the maximum stress on the hip joint by applying a point force to its adjacent surface. The vulnerable part in the hip joint neck with a high risk of fracture risk on an impact could be determined and used to set the protective device attachment position.

Originality/value

It is significant that this study has developed a partial model of the human body that can be used for a relatively simple simulation by minimizing the highly complex human body as much as possible. Furthermore, the model is easily applicable to the designing of protected positions and protective devices for the development of special clothing, for hip joint fracture prevention.

Details

International Journal of Clothing Science and Technology, vol. 32 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 10 July 2009

Jaekyung Park, Yunja Nam, Kueng‐mi Choi, Yuri Lee and Kyu‐Hye Lee

The purpose of this paper is to identify the relationships between consumers' body types and characteristics such as shopping orientation, past experience with fit problems…

3682

Abstract

Purpose

The purpose of this paper is to identify the relationships between consumers' body types and characteristics such as shopping orientation, past experience with fit problems, attitudes toward internet shopping and attitudes toward 3‐D body scanning.

Design/methodology/approach

This study collected body data from 441 Korean females who participated in 3‐D body scanning. Using a hierarchical cluster analysis, the body scanning identified five body types. Then body types and shopping characteristics variables were analyzed.

Findings

Slim respondents showed significantly higher hedonic shopping orientation and their attitude to internet shopping was positive, since they evaluated using the internet as being “fun”. By contrast, respondents with larger body types considered the convenience of internet shopping to be the most important feature. Respondents, regardless of their body types, regarded 3‐D body scanning as an enjoyable, futuristic and interesting experience. Moreover, respondents showed a high inclination to spend more money for customization services which utilize the 3‐D scanning technique.

Originality/value

This study analyzed Korean females' body shapes using 3‐D scanned body measurements. This study can contribute to integrate knowledge in the body measurement sector and the consumer behavior sector.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 13 no. 3
Type: Research Article
ISSN: 1361-2026

Keywords

Article
Publication date: 5 October 2010

Hyunsook Han, Yunja Nam and Su‐Jeong Hwang Shin

The purpose of this paper is to provide algorithms of the automatic landmark extraction software program that are applicable for any torso shape.

Abstract

Purpose

The purpose of this paper is to provide algorithms of the automatic landmark extraction software program that are applicable for any torso shape.

Design/methodology/approach

In this study, Automatic Landmark Identification (AULID), an automatic landmark extraction software program, was developed to extract consistent landmark locations from any torso shape. A methodology of geometrical characteristics of the body surfaces around each landmark was used for the algorithms and implemented with C++. The accuracy of the AULID was tested on various torso shapes. The verification methodology consisted of mean difference (MD), mean absolute differences (MAD), and one‐way analysis of variance. Duncan test for multiple comparisons was used to evaluate the significant differences of MAD values among different torso groups. The MAD values were compared to the anthropometric survey allowable errors.

Findings

The algorithms of AULID provided both accuracy and consistency of identifying landmarks on any body torso types.

Originality/value

Most 3D body scanning systems often show landmark location errors when dealing with nonstandard body shapes. None of automatic landmark extraction software program provides consistency of identifying landmarks in various body shapes. However, algorithms of AULID, an automatic landmark extraction software program, in this study are only consistent definitions for identifying landmarks in any torso shape.

Details

International Journal of Clothing Science and Technology, vol. 22 no. 5
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 2 March 2015

Sunmi Park, Yunja Nam and Kuengmi Choi

The purpose of this paper is to develop a virtual body that resembles the customer’s body shape using only the minimum information provided by the customer and without requiring…

Abstract

Purpose

The purpose of this paper is to develop a virtual body that resembles the customer’s body shape using only the minimum information provided by the customer and without requiring individually scanned data.

Design/methodology/approach

The target of this study includes the three-dimensional scanned data of 91 senior women aged 60 or older and human body measurement data of 268 people. The parametric virtual body was generated in three steps: a basic virtual body, a trans-shaped virtual body, and a trans-sized virtual body.

Findings

Using organic relationships found in the body shape factors of the lower body, this study developed an algorithm to generate elderly women’s parametric virtual lower body that is quick and reproducible. Having tested the reproducibility of the algorithm, the parametric virtual body showed excellent reproducibility vis-à-vis the personal scanned data in both the shape acceptability and size acceptability.

Originality/value

Because virtual bodies in this study are based on the results of body shape analysis related to apparel design, those resembling customer body shapes can be quickly and accurately generated. In addition, because body shape information for target groups is provided to the clothing manufacturers, it will likely contribute significantly to enhancing clothes fitting.

Details

International Journal of Clothing Science and Technology, vol. 27 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 7 March 2016

Mi Kyung Yoon, Yun Ja Nam and Woong Kim

The purpose of this paper is to develop a method for defining and categorizing upper lateral somatotypes for clothing size systems used for clothing pattern creation based on…

Abstract

Purpose

The purpose of this paper is to develop a method for defining and categorizing upper lateral somatotypes for clothing size systems used for clothing pattern creation based on directional angles of 3D space vectors.

Design/methodology/approach

3D data for 317 men in their twenties obtained from the fifth Size Korea survey were used in this study. Standard landmarks and surfaces were set on the 3D shapes, and six space vector angles of the lateral form were defined and measured. Relationships among the measurement results were clarified, and the results were compared with those obtained using existing classifying methods.

Findings

The measurement of the defined directional angles indicated that the swayback type and bend-forward type had the two extreme values, and the straight type was between the two values. The analysis of the correlation between six directional angles indicated that some points in the lower area of the upper body had a high correlation with other points in the lower area.

Researchlimitations/implications

The subjects of this study were limited to lateral somatotypes, and there is a need for future studies that focus on frontal somatotypes. This research is confined to the upper lateral somatotypes of men in their twenties. Further study is needed to extend the results of this study to other body types such as those of elderly and overweight persons.

Practical implications

Major angle measurements quantified by the somatotypes can be specifically reflect in developing and revised to the right patterns which is spread body shell replica or individual pattern for MTM.

Social implications

This objective somatotype analysis method can be involved in determining individual body somatotype of ordermade clothes or can provided the accurate information interactively to MTM automatic customized pattern making system.

Originality/value

Accurate measurements of size, shape, and posture were applied and characterized to realize the process. Accuracy was improved compared to existing 2D analysis methods through three-dimensional analysis using directional space vector angles based on 3D forms.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

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