Wearer's Body Research Articles

Inverse Garment and Pattern Modeling with a Differentiable Simulator

AbstractThe capability to generate simulation‐ready garment models from 3D shapes of clothed people will significantly enhance the interpretability of captured geometry of real garments, as well as their faithful reproduction in the digital world. This will have notable impact on fields like shape capture in social VR, and virtual try‐on in the fashion industry. To align with the garment modeling process standardized by the fashion industry and cloth simulation software, it is required to recover 2D patterns, which are then placed around the wearer's body model and seamed prior to the draping simulation. This involves an inverse garment design problem, which is the focus of our work here: Starting with an arbitrary target garment geometry, our system estimates its animatable replica along with its corresponding 2D pattern. Built upon a differentiable cloth simulator, it runs an optimization process that is directed towards minimizing the deviation of the simulated garment shape from the target geometry, while maintaining desirable properties such as left‐to‐right symmetry. Experimental results on various real‐world and synthetic data show that our method outperforms state‐of‐the‐art methods in producing both high‐quality garment models and accurate 2D patterns.

Research and Design of A Multifunctional Heart Rate Detection System

Addressing the limitations of conventional heart rate detectors, which solely monitor heart rate without providing alerts during critical incidents, a multifunctional heart rate detection system has been developed. This system incorporates a GD32 as the main controller and utilizes a pulse sensor for heart rate monitoring, an MLX90614 infrared temperature sensor for body temperature measurements, an MPU6050 acceleration sensor for motion posture detection, and a SIM868 module for GPS positioning and server communication. This comprehensive setup allows for real-time monitoring of the wearer's heart rate and body temperature, assessment of fall incidents based on motion posture data, and regular uploading of health data to a server. Additionally, the system is equipped with a one-touch emergency call feature. In the event of abnormal heart rate readings or a fall, it triggers an alarm, acquires GPS coordinates, and automatically dials an emergency contact number. After thorough testing and verification, the system has demonstrated full functionality with heart rate data accuracy within the expected error range, offering a reliable safety mechanism for patients while on the move.

Solution-Processed Metallic Nanowire Network for Wearable Transparent Thermal Radiation Shield.

Heating requirements for residential and commercial dwellings result in significant energy consumption and deleterious environmental effects. Personal radiative thermal management textiles regulate the wearer's body temperature by controlling the material's intrinsic optical properties. Passive heating textiles suppress radiative heat losses and therefore significantly reduce the energy consumption required for building heating systems. Guided by an optical theoretical approach, a transparent radiation shield (TRS) is designed based on silver nanowires (AgNWs) that can suppress human body heat with simultaneous visible light transmittance anticipated for practical fabrics. We experimentally demonstrated a TRS with large infrared light reflectance (low emissivity of 35%) and a visible (VIS) transparency value of 75% (400-800 nm). The results are well corroborated by the Mie scattering theory and the wire-mesh equivalent sheet impedance model, which provide fundamental mechanism understanding and guidance toward higher performance. The TRS is fabricated by a simple, solution-processing method with thermoplastic elastomer protective layers, granting notable stretching capabilities, mechanical robustness, and conformability to any body shape or object. The rigorous theoretical strategy enables the scalable synthesis of low-emissivity and visibly transparent textiles for personal thermal comfort.

An intelligent self‐powered life jacket system integrating multiple triboelectric fiber sensors for drowning rescue

AbstractThe inherent unpredictability of the maritime environment leads to low rates of survival during accidents. Life jackets serve as a crucial safety measure in underwater environments. Nonetheless, most conventional life jackets lack the capability to monitor the wearer's underwater body movements, impeding their effectiveness in rescue operations. Here, we present an intelligent self‐powered life jacket system (SPLJ) composed of a wireless body area sensing network, a set of deep learning analytics, and a human condition detection platform. Six coaxial core‐shell structure triboelectric fiber sensors with high sensitivity, stretchability, and flexibility are integrated into this system. Additionally, a portable integrated circuit module is incorporated into the SPLJ to facilitate real‐time monitoring of the wearer's movement. Moreover, by leveraging the deep‐learning‐assisted data analytics and establishing a robust correlation between the wearer's movements and condition, we have developed a comprehensive system for monitoring drowning individuals, achieving an outstanding recognition accuracy of 100%. This groundbreaking work introduces a fresh approach to underwater intelligent survival devices, offering promising prospects for advancing underwater smart wearable devices in rescue operations and the development of ocean industry.image

Quantifying the Human Perception: Development and Characterization of Textile-Based Capacitive Strain and Pressure Sensors

In the research field of smart textiles, one main goal concerns quantifying environmental forces acting on the wearer's body since textiles, acting as the boundary between the two, are an excellent way of integrating sensors. Integrating strain and pressure sensors into wearables promises a simple way of monitoring a person's posture and forces acting on their body. Sensors relying on a capacitive measuring principle are highly suitable for this, as they are less sensitive to changes in temperature than resistive or inductive types. In this paper, textile-based capacitive sensors are produced by braiding conductive yarns with and without an electrically insulating TPU sheath. The produced sensors are analyzed in cyclic strain and compression tests. Moreover, their behavior under changing temperatures is tested to prove their resilience against environmental changes. To extend their capabilities from an integral measurement to a localized assessment of the strain, time-domain-reflectometry (TDR) is employed. Finally, the sensors are integrated into a flexible actuated bending beam, and their adoption for soft robotics is discussed. Strain is tested cyclically, showing good long-term stability. Pressure sensitivity is measured in a static compression test under increasing force. TDR is used to localize strain in two discreet sections of the sensor. Although strain could not be quantified through TDR, characteristic points in the measured response signal indicating the position of the strain were identified. Textile-based capacitive sensors are suitable for strain up to 10 % and pressure up to 8 N. The determined gauge factors are satisfactory, with strain sensors inherently having a higher gauge factor than pressure sensors. Furthermore, they display good long-term stability and no adverse reaction to changes in temperature. TDR is proven to provide localization of strain in flexible sensors.

산업용 전신 하네스 설계를 위한 치수 체계 제안

Background/Objectives: Industrial harness designs have traditionally prioritized safety and protection against physical impact while giving limited consideration to the wearer's body shape. To enhance the comfort of industrial harnesses, this study proposes domestic industrial harness sizing systems based on an analysis of Korean anthropometric measurements.
 Methods: Data from the 8th Size Korea anthropometric report(2020-2023) were utilized to propose sizing systems tailored to the Korean body type for industrial harness products. Dimensional analysis involved the direct measurement data of adult men and women aged 20 to 59. The sizing systems of commercially available industrial harnesses were also examined. The product from domestic brand with 3 sizes was selected as a representative design for further analysis.
 Results: Through an analysis of waist circumference frequency dis tribution, three sizes were determined: S (66- 161), M (81- 166), and L (96- 172).
 Conclusion/Implications: The industrial full body harness sizing system proposed in this study, based on Korean anthropometric measurements, is expected to enhance the fit of harnesses. Furthermore, this study is expected to offer essential data for establishing a rational sizing system from a producer's perspective. This research is significant as it represents the first effort to establish sizing systems for Koreans in full body harness design. Furthermore, it is anticipated that full body harness product designs using this system will not only improve user satisfaction with fit but also enhance ergonomic suitability.

Physical Noninvasive Attacks on Photoplethysmogram by Computer Controlled Blood Pressure Cuff.

Sensor data has been used in social security and welfare infrastructures such as insurance and medical care to provide personalized products and services; there is a risk that attackers can alter sensor data to obtain unfair benefits. We consider that one of the attack methods to modify sensor data is to attack the wearer's body to modify biometric information. In this study, we propose a noninvasive attack method to modify the sensor value of a photoplethysmogram. The proposed method can disappear pulse wave peaks by pressurizing the upper arm with air pressure to control blood volume. Seven subjects experiencing a rest environment and five subjects experiencing an after-exercise environment wore five different models of smartwatches, and three pressure patterns were performed. It was confirmed in both situations that the displayed heart rate decreased from the true heart rate.

The Pad, the ‘Fat’ Belly, and the Politics of Female Appetite

Abstract1793 saw the emergence, vogue, and decline of ‘the pad’, a fashionable false belly worn by women under their outer garments. At the time, the pad was most explicitly condemned as a disguise for illegitimate pregnancy and as a distorter of the ‘natural’ female shape — the slender waist. However, as this article will uncover, underpinning these more common critiques of the pad was the suspicion that it concealed and imitated the ‘fat’ female belly. Indeed, as I argue, the unsettling effect of the pad was notably due to the way in which it rendered the female wearer's body illegible, particularly to those who wished to police it.

Transparent core-sheath composite fibers as flexible temperature sensor based on liquid crystal color change for smart sportswear

The characteristic of color changes in response to external temperature stimuli has made thermochromic fibers a subject of widespread research interest. However, for practical applications, improvements are still needed in terms of color rendering and the prevention of temperature-sensitive material leakage. This study utilized an optimized thermally induced coaxial dry spinning process to prepare a transparent temperature sensing fiber (PCCF) with a core-sheath structure. The sheath layer and the core layer of the PCCF were polydimethylsiloxane (PDMS) and cholesteric liquid crystal (CLC), respectively. The high transmittance exhibited by PCCF was attributed to the pellucid PDMS, which quickly cured in oil bath to form a complete core-sheath structure. The research results indicated that PCCF displayed uniform morphology (average diameter ∼539 μm), excellent tensile properties (elongation at break up to 183 %), as well as good mechanical, thermal, and sweat resistance stability. In addition, the PCCF showed a colorful variation of hues including yellow, green, blue and purple at a very narrow temperature change from 34 °C to 38 °C, attributing to that the molecular pitch was altered to selectively reflect visible light when the CLC was stimulated by temperature. Meanwhile, high sensitivity and short response time were obtained. When the PCCF was directly integrated into sportswear, the remarkable color changes could be observed as the wearer's body temperature increases. PCCF demonstrates a great potential application in smart sportswear and healthcare area.

MoCaPose

We present MoCaPose, a novel wearable motion capturing (MoCap) approach to continuously track the wearer's upper body's dynamic poses through multi-channel capacitive sensing integrated in fashionable, loose-fitting jackets. Unlike conventional wearable IMU MoCap based on inverse dynamics, MoCaPose decouples the sensor position from the pose system. MoCaPose uses a deep regressor to continuously predict the 3D upper body joints coordinates from 16-channel textile capacitive sensors, unbound by specific applications. The concept is implemented through two prototyping iterations to first solve the technical challenges, then establish the textile integration through fashion-technology co-design towards a design-centric smart garment. A 38-hour dataset of synchronized video and capacitive data from 21 participants was recorded for validation. The motion tracking result was validated on multiple levels from statistics (R2 ~ 0.91) and motion tracking metrics (MP JPE ~ 86mm) to the usability in pose and motion recognition (0.9 F1 for 10-class classification with unsupervised class discovery). The design guidelines impose few technical constraints, allowing the wearable system to be design-centric and usecase-specific. Overall, MoCaPose demonstrates that textile-based capacitive sensing with its unique advantages, can be a promising alternative for wearable motion tracking and other relevant wearable motion recognition applications.

Jeans and their Fashionable Meanings: Revisiting Beverly Gordon's Cultural Conceptual Framework

Jeans and their Fashionable Meanings: Revisiting Beverly Gordon's Cultural Conceptual Framework

Role of opsins and light or heat activated transient receptor potential ion channels in the mechanisms of photobiomodulation and infrared therapy

Photobiomodulation (otherwise known as low level light therapy) is an emerging approach for treating many diseases and conditions such as pain, inflammation, wound healing, brain disorders, hair regrowth etc. The light used in this therapy generally lies in the red and near-infrared spectral regions. Despite many positive studies for treating different conditions, this therapy still faces some skepticism, which has prevented its widespread adoption in clinics. The main reasons behind this skepticism are the lack of comprehensive information about the molecular, cellular, and tissular mechanisms of action, which underpin the positive effects of photobiomodulation. Moreover, there is also another therapeutic application using longer wavelength infrared radiation, involving either infrared saunas or heat lamps which are powered by electricity, as well as infrared emitting textiles and garments which are solely powered by the wearer's own body heat. In recent years, much knowledge has been gained about the mechanism of action underlying these treatments, which will be summarized in this review. There are three broad classes of primary chromophores, which have so far been identified. One is mitochondrial cytochromes (including cytochrome c oxidase), another is opsins and light or heat-sensitive calcium ion channels, and a third is nanostructured water clusters. Light sensitive ion channels are activated by the absorption of light by the chromophore proteins, opsin-3 and opsin-4, while mitochondrial chromophores are activated by red or near-infra red (NIR) light up to about 850 nm. However NIR light at 980 nm or longer wavelengths can activate transient receptor potential (TRP) ion channels, probably after being absorbed by nanostructured water clusters. Heat-activated TRP channels undergo a conformational change triggered by only small temperature changes. Here we will discuss the role of opsins and light or heat activated TRP channels in the mechanism of photobiomodulation and infrared therapy.

VCFN: Virtual Cloth Fitting Try-On Network

Virtual cloth fitting network has an increasing demand with a growing online shopping trend to map target clothes on reference subject. Previous research depicts limitations in the generation of promising deformed clothes on the wearer's body while retaining the design features of cloth-like logo, text, and wrinkles. The proposed model first learns thin-plate spline transformations to warp images according to body shape, followed by a try-on module. The former model combines deformed cloth with a rendered image to generate a composition mask and outputs target body without blurry clothes while preserving critical requirements of the wearer. Experiments are performed on the Zalando dataset and the model produces fine richer details and promised generalized results.

Oxygen Consumption and Blood Pressure Are Not Influenced by Use of a Backpack Hip Strap.

Several studies have explored the effect of backpack carriage on physiologic responses while walking, but few have focused specifically on the influence of the use of a hip strap on these responses. The aim of this study was to investigate the effect of a backpack hip strap on physiologic responses when walking at a moderate intensity while carrying a backpack with a standardized relative load of 30% of the wearer's body mass. Twenty-three healthy, active participants carrying backpacks walked on a treadmill at a speed and grade that elicited 40-50% of their heart rate reserve. Participants completed 2 counterbalanced 30-min trials, one with the hip strap in the strapped condition and one with the hip strap unfastened. Metabolic, heart rate, blood pressure, and muscle oxygen saturation (SmO2) responses were recorded during both trials. For each variable, 5-min intervals were averaged at baseline, 5, 10, 15, 20, 25, and 30 min. A repeated measures ANOVA test was used to evaluate the differences between the conditions at each time point. Data reported are the values from the final 5-min interval (30 min) and are reported as mean±SD. No differences were found between strapped and unstrapped trials for oxygen consumption (strapped 21.9±4.2 mL·kg-1·min-1; unstrapped 22.0±4.4 mL·kg-1·min-1, P=0.842), Δmean arterial pressure (strapped+5±17 Δmm Hg; unstrapped+12±14 Δmm Hg, P=0.128) or muscle oxygen saturation of the quadriceps (strapped 86±15%; unstrapped 90±12%, P=0.359) and calf (strapped 73±19%; unstrapped 81±12%, P=0.888). These results suggest that wearing a hip strap does not influence physiologic responses up to 30 min of moderate intensity walking while carrying 30% of the wearer's mass.

Block pattern design system using 3D zoning method on digital environment for fitted garment

The 2D pattern-making methods which are entirely based on body measurements are widely used and practiced to design garments in today’s digital environment. Such a method is highly criticized due to a lack of consideration for the body's different morphological and anthropometric data. However, such a method would be effective with many precise and repetitive adjustments and with the help of manual expert know-how. For the last few decades, designers have also used a garment designing technique that is carried out directly on a physical mannequin or fashion model, called the draping technique. The current study is devising and implementing a digital garment design technique in the 3D pattern-making process to create and fit the human body morphology in a 3D digital environment. This technique is based on the analysis of 2D pattern-making methods used by model makers. It also highlights the morphological contour and anthropometric links that have been used to develop a similar method in a 3D environment. However, the proposed methods are performed directly on the 3D wearer's morphology as in the manual 3D draping techniques, which avoids morphological interpretation errors. Such a process helps to control the fit of the 3D garment by determining the ease allowance. Besides, the methods integrated a 3D zoning technique to improve the 3D modelling and to ensure the best possible drape and analysis between the garment and the wearer's body. Further work is required to validate the block pattern for general application based on various parameters including fabric, garment style, body position, etc.

Selectively Stiffening Garments Enabled by Cellular Composites

AbstractRecent efforts on wearable robots have focused on augmenting the motor performance and/or protecting the wearer's body with lightweight structures. However, providing human‐scale force and structural stiffness usually conflicts with the wearability. Inspired by sandwich‐structured composites with high structural strengths, widely employed in both nature and man‐made structures, a mechanism of selectively stiffening garments (SSGs) utilizing anisotropic cellular cores and rubber‐laminated face sheets is proposed. While the proposed mechanism shows a high compliance allowing for conformity to the wearer's body when unjammed, it provides a significantly high force density when jammed, compared to conventional jamming methods, allowing for the ability to adjust mechanical properties based on the designs and materials. In this paper, various designs of the sandwich jamming structures for the SSGs with analytical characterizations and experimental validations are introduced. Potential applications for force and motion assistance are also demonstrated and impacted mitigation.

A case study on change of body measurements and silhouette after wearing early 19th century corsets

The purpose of this study was to analyze changes to body measurements and silhouettes after wearing an early 19th century women’s corset. Two types of corsets were tested. Changes in body size and silhouette were compared based on the levels of tightening strength of the corset. The tightening strength was adjusted in 4 steps by making the length of back fastening string 10-40 cm shorter than the standard. The silhouette was compared with the front silhouette and the side silhouette. The results were as follows. After wearing the experimental 19th century corsets, the chest circumference and front interscye length increased. However, the chest circumference did not increase proportionally to the tightening strength. The underbust circumference, waist circumference, and back interscye length also decreased. The waist width was decreased to create a slim front silhouette. The change in the body silhouette differed depending on the style of the experimental corset. The experimental corset made with the six-piece torso pattern changed the posture so that the shoulders were pulled back and the chest was pushed forward. The experimental corset with the side bodice pattern resulted in the subject’s shoulders reclining backward and the chest and abdomen extending forward. The results of this study show that women’s body sizes and silhouettes could be changed by wearing the early 19th century corsets, but the changes in body size and silhouette vary depending on the wearer's individual body type or corset style.

METHOD OF TREATMENT AND MAINTENANCE THERAPY OF PROSTHETIC STOMATITIS IN PATIENT WITH DIABETES MELLITUS

Relevance. Adaptation to prostheses and their further wearing is often associated with traumatic injuries of the oral mucosa. Mechanical traumas of the oral mucosa with removable laminar dentures, toxic effects of plastic components, the allergic effects of the prosthesis on the oral mucosa and the prosthesis wearer's body as a whole, as well as a stress factor considerably contribute to the occurrence of prosthetic stomatitis. Most often, a removable laminar denture acts as a combined stimulus. The manifestations of diabetic microangiopathies in the oral mucosa enhance the severity of prosthetic stomatitis in individuals with diabetes mellitus. The clinical picture of prosthetic stomatitis also depends on the size and condition of denture supporting area, for instance, atrophy of the edentulous jaws, conditions for anatomical retention of dentures. Therefore, the treatment of stomatitis in patients who wear removable laminar dentures is still a challenging problem in orthopaedic and therapeutic dentistry.
 Purpose and objective: to investigate available treatment approaches and maintenance therapy for managing prosthetic stomatitis in patients with diabetes mellitus who wear removable acrylic laminar dentures; to offer our newly developed treatment and maintenance therapy of prosthetic stomatitis in diabetic patients.
 Material and methods. The existing approaches and methods of treatment and maintenance therapy for prosthetic stomatitis in patients with diabetes mellitus were thoroughly investigated with clear focus on their advantages and disadvantages. The available methods to manage the complications caused by laminar denture wearing in patients with diabetes mellitus include topical remedies and oral hygiene products. The treatment of prosthetic stomatitis in patients who wear dentures is often reported as ineffective. Therefore, at present, it is relevant to search for new methods of treating prosthetic stomatitis under diabetes mellitus with the use of agents that boost the body antioxidant protection, stimulate tissue regeneration and epithelialisation.
 Results. The method we have developed for the treatment of prosthetic stomatitis in individuals with diabetes mellitus includes the application of 2% Thiotriazolin ointment for local treatment, and Thiotriazolin preparation for systemic therapy. Thiotriazoline is a domestic drug of polytropic action. It has membrane-stabilizing, antioxidant and reparative properties. Thiotriazoline stimulates tissue regeneration and epithelialisation processes, somewhat reduces the intensity of the inflammatory process. In dental practice, 2% Thiotriazolin ointment is recommended to treat ulcerative lesions of the oral mucosa and periodontal tissues. Our treatment method includes the following steps: after the denture adjustment and sanitation of the oral cavity done, patients are prescribed to apply 2% Thiotriazolin ointment onto the denture supporting areas, which are the most often traumatized, in particularly, onto the maxillary tubercles, along the transitional fold, in the sublingual, retromolar and retroalveolar spaces, daily for 7-10 days. The patients are also recommended to apply 2% Thiotriazolin ointment onto the inner surface of the prosthesis base. For systemic therapy, “Thiotriazolin” is prescribed to be taken by mouth in a dosage of 1 tablet of 100 mg per day for 30 day course.
 Supportive therapy involves Quvertin, while Lizak tablets are used for local prophylaxis. Following the oral sanitation, patients are prescribed to Lizak tablets (should be held in the mouth until dissolved slowly) 3-4 times a day for 5-7 day course. As part of a comprehensive supportive therapy, patients are prescribed Quvertin tablets, 1 tablet twice a day 30 minutes before meals (chew the tablet) for 30 day course.
 Conclusion. The proposed method of the therapy of prosthetic stomatitis in people with diabetes mellitus is quite easy to use, causes no side effects, produces a positive effect on the clinical course of the conditions, and enabled to achieve a stable remission after the disease, and, thus, can be recommended for implementing into dental practice. The described maintenance therapy for diabetic patients with prosthetic stomatitis is clinically effective, has no side effects, and can increase the periods of remission after the disease. This combination therapy can be recommended as an effective treatment option in therapeutic and orthopaedic dentistry.

Dirty Laundry: Caring for Clothing in Early Modern Italy

Personal linens were key components of early modern health regimens. When they were visibly clean and bright white, linen shirtsleeves, collars and cuffs communicated the cleanliness of the wearer's body, as well as the state of their mind, morals and spirit. These functional garments and accessories could also be fashionable, especially when decorated with ruffles, lace and embroidery. Linens thus communicated hygienic, social, moral and financial information, which was generated by and reliant upon processes of laundry. This article explores some of these processes, especially as they pertain to linen shirts, cuffs and ruffs owned by non-elite people living in northern Italian cities. It brings archival, visual and material sources together with evidence generated through the re-creation of early modern processes of caring for clothing to show how ‘doing the laundry’ imparted linens with social and financial meanings and values.

REKONSTRUKSI POLA BUSTE HOUDER UNTUK PEMBELAJARAN LINSERI

The basic Buste Houder pattern can be the basis for making patterns for various Buste Houder models, but also forms the basis for making other liner clothing patterns. Based on observations on the Buste Houder basic pattern making practicum, it is known that respondents often find it difficult, because the making of the Buste Houder basic pattern has a high level of difficulty with complex size comparison provisions formulas. In general, this study aims to develop the material for making Buste Houder's basic patterns, to increase competence in making liner clothing patterns. This study uses a descriptive method with a Research and Development approach. This reconstruction study will be carried out in three stages, namely: (1) preliminary study, (2) pattern development, and (3) pattern testing. Preliminary study activities: (a) literature study, (b) identification of the characteristics of the basic pattern making material Buste Houder (c) Study the learning of lining pattern making. The model development stage: (a) Designing the reconstruction of the Buste Houder archetype, (b) Testing the Buste Houder archetype, (d) Evaluating and completing the pattern. Produce a basic pattern of Buste Houder's Practical System by using the type of size for the Buste Houder pattern with structured and simpler formulas for size comparison provisions, in order to obtain the proper Buste Houder basic pattern making technique, easy to learn and understand and fit the wearer's body.