#hospitalpatientgown #3Dbodyscanning #usercenteredesign #productdevelopment #anthropometricfit #apparelindustry #textilescience

This intriguing topic served as my Master's Thesis. The ultimate goal of this research study is to offer a reference guide for the design of new hospital patient gown (HPG) by determining fit areas of concern and gauging acceptable ranges of size measurements for the HPGs that can be worn by men and women without excessively compromising the patients’ comfort and dignity. Specifically, the study focused on an independent predictor, namely gender, because it offers the most distinctive anthropometric body dimensions between the subgroups. The study adopted multi-dimensional fit and comfort evaluation protocol, among which was the use of a three-dimensional (3D) body scanning technology to measure anthropometric body dimensions of study participants and determine the garment fit problems of the HPG. This study collected subjective fit evaluation through surveys (quantitative), scenarios activities (quantitative), interviews (qualitative), and anthropometric fit assessment through 3D body scanning (quantitative).  Based on the characterizations of mixed-methods research proposed by scholars, the study presented quantitative-dominant mixed methods research with between-methods data/methodological triangulation.  

The hospital patient gown (HPG), also known as “one-size-fits-all” patient apparel, is the rare design case.  In modern society, this garment is worn by almost everyone at least once in their lifetime, and most likely multiple times. Diverse physical profiles of patients, along with their clinical needs, present a unique design challenge to satisfy HPG users with one universal design and one universal size.  While medical technology and facilities continually undergo revolutionary innovation, the standard hospital-issued gown has remained essentially unchanged since it was originally designed in the 1920s (Samson, Welsh, & Lamar, 2008). The 21st century users of the HPG are diverse in terms of age, gender, physical profiles and clinical needs, and the outdated design does not successfully meet the needs of patients and healthcare providers alike. For example, a high level of discomfort has been reported by many users of the conventional gown, due to its lack of fit (Park, Sarkar, & Cozza, 2012). In addition, a general misconception that patients are isolated from social interaction has led to a serious disregard of patients’ dignity for the expressive functions of the gown (Cho, 2006). Patients are all too familiar with the embarrassment of trying to hold together flimsy hanging pieces of fabric to avoid exposing their uncovered backsides while walking down a hospital corridor (Park, 2014).

Although some previous attention has been given to redesigning the conventional HPG, the products of these attempts have not yet been widely adopted by hospitals. This is because a satisfying alternative design has not been created based on the comprehension of the hospital’s and the patient’s needs for a new HPG. In any human-centered design process, a comprehensive understanding of the user’s needs and desires offers a critical component for the success of the final design outcomes; because it leads to more effective, efficient, and safer products that likely evoke user satisfaction (Norman, 2013).

Statistical analyses were performed using the IBM SPSS ver. 24.0 software package.  To test the normality of data, we conducted Shapiro-Wilk tests at the 95% confidence level and nonparametric Mann-Whitney U tests. Additionally, Pearson correlation and univariate linear regression analyses were performed to understand relationships between continuous variables. Principal component analysis (PCA) were also performed to reduce the dimensionality of variables when appropriate. Descriptive analyses calculated means, standard deviations, frequency and percentage. Additionally, we transcribed qualitative interview data verbatim and analyzed the data using the constant comparison approach (Corbin & Strauss, 2008). 

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#naturaldyes #sustainabledyes #textilescience #colorfastness #persimmonnaturaldye #colorquest #AATCC #FTIR

The textile industry is one of the most polluting in the world. With the rise of fast fashion, textile waste is filling our landfills. These textile materials are often made with harmful petroleum-based chemicals, which were left over from the dyeing process. The growing recognition of natural dyes have attracted a significant attention in the textile science field. Natural dyes tend to exhibit far better biodegradability than man made dyes. They are also non-toxic therefore, non-polluting and far less health hazardous. Natural dyes can be obtained from various sources such as plants, animals and microbes. Although microbial dyes have a slight advantage over plant and animal based dyes, microbial dyes are fast-growing and have the potential of being more easily standardized and mass produced. Although natural dyes are valued in the market, they are also known to lack colorfastness. Because natural dyes are more compatible with the environment, they are also more favored by environmentally friendly people across the world.

This preliminary research study was conducted during my first year of graduate studies at Colorado State University. For this study, I collaborated with one of the DM faculty and another graduate student. The purpose of this preliminary study was to investigate the effect of different pH concentrations (pH 3, pH 6, and pH 10) on cotton and wool fabrics using persimmon natural dye. This research used a concentration of 200% for both cotton and wool samples. A special perspiration solution was prepared to which all samples were soaked for 30 ± 2 minutes and then exposed to high temperature in a standard perspiration oven. The performance was characterized using grey scales, color strength and appearance analysis (ColorQuest), American Association of Textile Chemists and Colorists colorfastness tests, and Fourier transform infrared spectroscopy (FTIR). 


#mountainrescue #firstresponders #productdevelopment #functionality #accessibility #backpack

During my graduate studies, I worked on an independent research project with 2 other graduate students that explored common inhibiting issues such as, functionality and accessibility that mountain rescue first responders have with their backpacks. The study conducted several semi-structured focus group sessions with mountain rescue first responders over a 1-hour discussion using snowball sampling, limited to the Rocky Mountain Region.

A qualitative approach was applied where the focus group discussion data was transcribed verbatim and organized by common themes identified. Direct content analysis was used where codes derived from the discussion were defined before and during the data analysis process. 

This research study identified five major themes that incorporate the functionality and accessibility issues with the current backpacks, and they are the following: Durability, flexibility, visibility, modularity and usability. The five identified themes were analyzed using the FEA product attribute model as a need assessment of mountain rescue first responders’ backpacks. This was an exploratory study with potential global implications.