Customized Body Mapping to Facilitate the Ergonomic Design of Sportswear

Cao, Maoyong; Li, Yang; Guo, Yueping; Yao, Lei; Pan, Zhigeng

doi:10.1109/mcg.2016.110

Cited by 12 publications

(9 citation statements)

References 5 publications

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“…54 To quantitatively demonstrate the excellent water-vapor permeability of our silkbased electrodes, we measured the water-vapor transmission rates (WVTRs) at 20 and 37 °C, which mimic the comfortable and heavy sweating conditions of human bodies, respectively. Under both conditions, the WVTRs of our silk-based electrodes (∼53 and ∼117 g•m −2 •h −1 at 20 and 37 °C, respectively) are higher than the transepidermal water loss (TEWL) of the skin of adults under normal (TEWL skin = ∼ 5− 10 g•m −2 •h −1 ) and exercise states (TEWL skin = ∼ 6−66 g•m −2 • h −1 ), 16,55,56 definitely exceeding those of commercial and SEBS polymer electrodes (Figure 3d). This indicates that watervapor loss and sweat evaporation by skin would not be blocked by our electrodes under calm and even sweaty situations.…”

Section: Resultsmentioning

confidence: 83%

Highly Thermal-Wet Comfortable and Conformal Silk-Based Electrodes for On-Skin Sensors with Sweat Tolerance

et al. 2021

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Noninvasive and seamless interfacing between the sensors and human skin is highly desired for wearable healthcare. Thin-film-based soft and stretchable sensors can to some extent form conformal contact with skin even under dynamic movements for high-fidelity signals acquisition. However, sweat accumulation underneath these sensors for long-term monitoring would compromise the thermal-wet comfort, electrode adherence to the skin, and signal fidelity. Here, we report the fabrication of a highly thermal-wet comfortable and conformal silk-based electrode, which can be used for on-skin electrophysiological measurement under sweaty conditions. It is realized through incorporating conducting polymers poly(3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT:PSS) into glycerol-plasticized silk fiber mats. Glycerol plays the role of tuning the mechanical properties of silk fiber mats and enhancing the conductivity of PEDOT:PSS. Our silk-based electrodes show high stretchability (>250%), low thermal insulation (∼0.13 °C·m2·W–1), low evaporative resistance (∼23 Pa·m2·W–1, 10 times lower than ∼1.3 mm thick commercial gel electrodes), and high water-vapor transmission rate (∼117 g·m–2·h–1 under sweaty conditions, 2 times higher than skin water loss). These features enable a better electrocardiography signal quality than that of commercial gel electrodes without disturbing the heat dissipation during sweat evaporation and provide possibilities for textile integration to monitor the muscle activities under large deformation. Our glycerol-plasticized silk-based electrodes possessing superior physiological comfortability may further engage progress in on-skin electronics with sweat tolerance.

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Section: Resultsmentioning

confidence: 83%

Highly Thermal-Wet Comfortable and Conformal Silk-Based Electrodes for On-Skin Sensors with Sweat Tolerance

et al. 2021

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“…This PDF file includes: Materials and Methods Figs. S1 to S30 Tables S1 to S3 References (67)(68)(69)(70)(71)(72)(73)(74)(75)(76)(77)(78)(79)(80) Other Supplementary Material for this manuscript includes the following: Movies S1 to S4 Data files S1 to S4 MDAR Reproducibility Checklist View/request a protocol for this paper from Bio-protocol.…”

Section: Supplementary Materialsmentioning

confidence: 99%

On-skin biosensors for noninvasive monitoring of postoperative free flaps and replanted digits

Zhao

et al. 2023

Sci. Transl. Med.

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Severe soft tissue defects and amputated digits are clinically common injuries. Primary treatments include surgical free flap transfer and digit replantation, but these can fail because of vascular compromise. Postoperative monitoring is therefore crucial for timely detection of vessel obstruction and survival of replanted digits and free flaps. However, current postoperative clinical monitoring methods are labor intensive and highly dependent on the experience of nurses and surgeons. Here, we developed on-skin biosensors for noninvasive and wireless postoperative monitoring based on pulse oximetry. The on-skin biosensor was made of polydimethylsiloxane with gradient cross-linking to create a self-adhesive and mechanically robust substrate that interfaces with skin. The substrate was shown to exhibit appropriate adhesion on one side for both high-fidelity measurements of the sensor and low risk of peeling injury to delicate tissues. The other side demonstrated mechanical integrity to facilitate flexible hybrid integration of the sensor. Validation studies using a model of vascular obstruction in rats demonstrated the effectiveness of the sensor in vivo. Clinical studies indicated that the on-skin biosensor was accurate and more responsive than current clinical monitoring methods in identifying microvascular conditions. Comparisons with existing monitoring techniques, including laser Doppler flowmetry and micro-lightguide spectrophotometry, further verified the sensor’s accuracy and ability to identify both arterial and venous insufficiency. These findings suggest that this on-skin biosensor may improve postoperative outcomes in free flap and replanted digit surgeries by providing sensitive and unbiased data directly from the surgical site that can be remotely monitored.

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“…This enables increase in user comfort, as the article of clothing is highly wearable. The making of clothing to which aesthetically appreciable curvature is applied inspires people to buy the product [15,[65][66][67].…”

Section: IIImentioning

confidence: 99%

A Review of Contemporary Techniques for Measuring Ergonomic Wear Comfort of Protective and Sport Clothing

Teyeme

Malengier

Tesfaye

et al. 2021

Autex Research Journal

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Protective and sport clothing is governed by protection requirements, performance, and comfort of the user. The comfort and impact performance of protective and sport clothing are typically subjectively measured, and this is a multifactorial and dynamic process. The aim of this review paper is to review the contemporary methodologies and approaches for measuring ergonomic wear comfort, including objective and subjective techniques. Special emphasis is given to the discussion of different methods, such as objective techniques, subjective techniques, and a combination of techniques, as well as a new biomechanical approach called modeling of skin. Literature indicates that there are four main techniques to measure wear comfort: subjective evaluation, objective measurements, a combination of subjective and objective techniques, and computer modeling of human–textile interaction. In objective measurement methods, the repeatability of results is excellent, and quantified results are obtained, but in some cases, such quantified results are quite different from the real perception of human comfort. Studies indicate that subjective analysis of comfort is less reliable than objective analysis because human subjects vary among themselves. Therefore, it can be concluded that a combination of objective and subjective measuring techniques could be the valid approach to model the comfort of textile materials.

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Customized Body Mapping to Facilitate the Ergonomic Design of Sportswear

Cited by 12 publications

References 5 publications

Highly Thermal-Wet Comfortable and Conformal Silk-Based Electrodes for On-Skin Sensors with Sweat Tolerance

Highly Thermal-Wet Comfortable and Conformal Silk-Based Electrodes for On-Skin Sensors with Sweat Tolerance

On-skin biosensors for noninvasive monitoring of postoperative free flaps and replanted digits

A Review of Contemporary Techniques for Measuring Ergonomic Wear Comfort of Protective and Sport Clothing

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