Elastic Cloth Research Articles

Optimal surface clothing with elastic nets

The clothing problem aims at identifying the shape of a planar fabric for covering a target surface in the three-dimensional space. It poses significant challenges in various applications, ranging from fashion industry to digital manufacturing. Here, we propose a novel inverse design approach to the elastic clothing problem that is formulated as a constrained optimization problem. We assume that the textile behaves as an orthotropic, nonlinear elastic surface with fibers distributed along its warp and weft threads, and we enforce mechanical equilibrium as a variational problem. The target surface is frictionless, except at its boundary where the textile is pinned, imposing a unilateral obstacle condition for the reactive forces at the target surface. The constrained optimization problem also accounts for an elongation condition of the warp and weft fibers, possibly with bounded shearing angle. We numerically solve the resulting constrained optimization problem by means of a gradient descent algorithm. The numerical results are first validated against known clothing solutions for Chebyshev nets, taking the limit of inextensible fibers. We later unravel the interplay between thread and shear stiffness for driving the optimal cloth shape covering the hemisphere and the hemicatenoid. We show how the metric of these target surfaces strongly affects the resulting distribution of the reaction forces. When considering the limit of covering the full sphere, we show how clothing with elastic nets allows to avoid the onset of singularities in the corresponding Chebyshev net, by developing corners at the cloth boundary.

DiffXPBD

We present DiffXPBD, a novel and efficient analytical formulation for the differentiable position-based simulation of compliant constrained dynamics (XPBD). Our proposed method allows computation of gradients of numerous parameters with respect to a goal function simultaneously leveraging a performant simulation model. The method is efficient, thus enabling differentiable simulations of high resolution geometries and degrees of freedom (DoFs). Collisions are naturally included in the framework. Our differentiable model allows a user to easily add additional optimization variables. Every control variable gradient requires the computation of only a few partial derivatives which can be computed using automatic differentiation code. We demonstrate the efficacy of the method with examples such as elastic cloth and volumetric material parameter estimation, initial value optimization, optimizing for underlying body shape and pose by only observing the clothing, and optimizing a time-varying external force sequence to match sparse keyframe shapes at specific times. Our approach demonstrates excellent efficiency and we demonstrate this on high resolution meshes with optimizations involving over 26 million degrees of freedom. Making an existing solver differentiable requires only a few modifications and the model is compatible with both modern CPU and GPU multi-core hardware.

Gastric functional monitoring by gastric electrical impedance tomography (gEIT) suit with dual-step fuzzy clustering

Gastric Function has been successfully estimated by gastric electrical impedance tomography (gEIT) Suit with dual-step fuzzy clustering. The gEIT Suit which are made of elastic cloth with dual-planar electrodes and compact data acquisition (DAQ) system measures gastric impedance Z to visualize the gastric conductivity distribution σ. The dual-step fuzzy clustering extracts the clustered gastric conductivity distribution kσ, which accurately estimates the gastric function. The gEIT Suit with dual-step fuzzy clustering are applied to eight healthy persons during liquid meal consumption to estimate the gastric function under gastric accommodation phase of 200, 400 and 600 mL based on the gastric emptying phase. As the results, the gEIT Suit successfully estimate the gastric function. By the measured impedance Z, the subjects have a mean temporal impedance overline{Delta mathbf{Z} }= − 9.27 [Ohm] and p-value of that overline{mathbf{Z} }p(Z) = 0.0013[–]as the t-test result. In the case of gastric conductivity distribution σ, the subjects have a value of spatial mean conductivity distribution ⟨σ⟩ = 0.23[–] and p-value of that ⟨σ⟩ p(σ) = 0.0140[–]. Lastly, in the case gastric volume V, subjects have a gastric volume V = 12.44 [%] and p-value p(V) = 0.0664[–].

Development of a Three-Layer Fabric Mechanism for a Passive-Type Assistive Suit

This paper proposes a three-layer elastic cloth fabric mechanism for an assistive suit with adjustable structure (based on a two-layer non-adjustable structure) to achieve different assistive force profiles. This increases the assistive force on the lower-back muscle group and alleviates the undesired pre-tension that acts on a user when the rubber belt located on the back is pulled to provide a higher assistive force. With the lower pre-tension, users would not encounter body fatigue as rapidly as in the past. The adjustable feature enables the structure to provide a force that increases gradually to a high level over a short distance without pre-tension. An experiment involving the measurement of muscle activities is conducted to evaluate the variation in assistive force in the lower back by comparing the three-layer suit to the two-layer non-adjustable suit. The experimental results show that the new three-layer structure successfully assists without pre-tension in the lower-back muscle group similar to the two-layer structure with pre-tension. A simple questionnaire is also administered to collect feedback from participants on the differences between the three-layer suit and two-layer suit in terms of wearing perception. Over half of the participants reported that the perception of pre-tension in the three-layer suit is lower than that in the two-layer suit.

A Method That Precisely Pressurizes the Local Limb.

Pressure garment treatment (PGT) is currently recognized as an effective method to prevent scar formation or treat scar hyperplasia. Research on PGT remains controversial. These controversies indicate that PGT lacks reliable evidence of evidence-based medicine. Different studies on PGT need to be conducted under the same "gold standard" so that different studies can be compared. We consider this "gold standard" to be that the pressure remains stable within a confidence interval during treatment. We calibrated and verified the reference value of the sensor using a cuff of sphygmomanometer. A pressure-adjustable pressure system was obtained by installing a soft tissue expander on the pressure garment. Local pressure was adjusted by charging and releasing air. Subsequently, the flexible pressure sensor was placed on the upper arm of the healthy volunteers. We validated the compression system on healthy volunteers' forearms and AO standard prostheses (forearms). The reference value of the sensor was calibrated on Volunteer 1. Measuring repeated on Volunteers 2 and 3. The measurement was very reproducible. The test results in the experimental group showed that the local pressure gradually increased with the increase of the inflation of the airbag. However, the pressure at the opposite position of the forearm changed little. Real-time pressure monitoring and pressure adjustment enable the pressure to be maintained at a certain value. Our study provides a new idea for the production of elastic clothing with the function of pressure measurement and pressure regulation, which may promote the accuracy and reliability of PGT.

Enhance sensitivity of plastic optical fiber sensor by spiral configuration for body temperature applications

In this study, sensors to measure body temperature were made using a macro bending method based on plastic optical fiber. Fiber optic sensors are made to form a spiral configuration on variations in diameter and bend number. The body temperature sensors are mounted on the elastic cloth and placed on the armpit. The light from the LED transmitted into an optical fiber sensor is affected by body temperature, so there is power loss in the sensor. Power loss cause light intensity decreases received by the phototransistor and differential amplifier. The power loss of the sensor and temperature measurement results will be displayed on the computer through the Arduino Uno microcontroller. The range of temperature used is 28°C - 42°C. The best sensor characteristic obtains at the spiral configuration in a diameter of 0 cm with some bending four bends and a range value of 0.421 V, sensitivity of 30.071 mV/°C, and resolution of 0.033°C. Plastic optical fiber is very suitable to be used as body temperature sensors because it can enhance sensitivity.

Multi-Attribute Decision Making using Hybrid Approach based on Benefit-Cost Model for Sustainable Fashion

Multi-Attribute Decision Making (MADM) is used to select the best alternative from multi-alternatives based on multi-attribute (fashion material) and multi-criteria (sustainable fashion). Multi-alternatives are cotton, linen, silk, wool, acrylic, nylon, polyester, rayon, spandex, and mixed. Multi-attributes are material, texture, color, characteristic, comfort, and wearability. Multi-criteria are material fiber, smooth texture, faded color, elastic clothing, useful long, chilly and comfortable. Hybrid approaches and optimal solutions are needed to determine the best choice in decision making for both producers and consumers. The hybrid approach in MADM used is Simple Multi-Attribute Rating (SMART), Multi-Factor Evaluation Process (MFEP), Multi-Object Optimization based on Ratio Analysis (MOORA), Simple Additive Weighting (SAW), and Weighted Product (WP). SMART and MFEP are based on the Non-Benefit Cost Model while MOORA, SAW, and WP are based on a Benefit-Cost Model. The experimental results show that the SMART model with the best alternative is the rayon with the highest value (2.8333). The selection of the MFEP Model with the best alternative is rayon with the highest value (2.8330). The choice of MOORA model with the best alternative is rayon with the highest value (0.2595). The selection of the SAW Model with the best alternative is rayon with the highest value (0.8932). The selection of the WP Model with the best alternative is rayon with the highest value (0.1285). MADM using SMART, MFEP, MOORA, SAW, and WP for sustainable fashion yields the best alternative for consumption and production for the middle-class population in Indonesia.

The Therapeutic Effects of Goreisan, a Traditional Japanese Herbal Medicine, on Lower-Limb Lymphedema after Lymphadenectomy in Gynecologic Malignancies: A Case Series Study.

Background Lower-limb lymphedema (LLL) is a chronic and progressive complication of gynecologic cancer treatment, including pelvic lymphadenectomy. This study aims to investigate the therapeutic effect of goreisan, a traditional Japanese medicine, which has been used for hydrostatic modulation on patients with LLL. Methods Patients diagnosed with LLL in our hospital in 2018 were included and principally treated with complex decongestive therapy (CDT), including elastic clothing and lymph drainage. The patients who received a combination therapy of CDT and goreisan (CDT-G group) were prescribed goreisan extract granules, with a dose of 7.5 g per os daily in three doses. Patients who were not prescribed goreisan received CDT alone (CDT group). The severity of lymphedema was evaluated by the estimated limb volume calculated by limb circumferences and the ratio of extracellular water (ECW) to total body water (TBW). Results Nineteen women with LLL after pelvic lymphadenectomy were included in the study. The number of patients in the CDT and CDT-G groups was 8 and 11, respectively. There were no statistically significant differences between the CDT and CDT-G groups in terms of patient characteristics and severity of LLL before treatment. Reduction in ECW/TBW in the CDT-G group (in the whole body and the affected lower limb) after the intervention was significantly more remarkable than that in the CDT group. Conclusions Goreisan-based Japanese herbal therapy may be effective in patients with LLL after retroperitoneal lymphadenectomy.

Application of modified tracking components in CyberKnife treatment of thoracic and abdominal tumors

Objective To improve synchrony tracking components of CyberKnife (tracking vest and tracking markers) and to analyze the clinical application value of the improved tracking components in CyberKnife treatment of thoracic and abdominal tumors. Methods The tracking apron was made of knitted four-side elastic spandex cloth and suture design of Velcro, which was used to stick the tracking markers on the chest and abdomen of patients. The tracking markers added a 2 cm thick light foam block to the bottom of the original markers, and then the hook face of the Velcro was fixed to the bottom of the light foam. The improved trace component (the improved component) and the original component (the vendor component) were applied to the lung tracking treatment model, and the manufacturer components were included in the reference group. Adoption of improved components into the observation group; 20 different types of respiratory waveforms were simulated and applied to the same mold plan. After treatment, the coverage rate, mean standard deviation, maximum standard deviation and the slope of XYZ-axis vs. R correlation graph were recorded. The relevant parameters of Synchrony model and wearable time of two components were compared, and the application significances of the improved tracking component in the breathing tracking process of the CyberKnife were evaluated. Results The maximum slope [median(interquartile range)] of XYZ-axis vs. R related graph in the reference group was 0.73 (3.89), 0.27 (0.49) and 0.34 (1.02), respectively. The maximum slope of XYZ-axis vs. R related graph in the observation group was 0.70 (2.78), 0.31 (0.30) and 0.36 (0.75), respectively. There was no statistically significant difference in the slope of XYZ-axis vs. R between the reference group and the observation group (all P > 0.05). There was no significant difference in the average standard error and maximum standard error between the reference group and the observation group [(1.7±0.4) mm vs. (1.7±0.5) mm, t=-0.382, P= 0.710; (2.0±0.6) mm vs. (1.7±0.5) mm, t=-0.877, P= 0.401], and the difference of the model coverage rate between the two groups was statistically significant [(48±18)% vs. (60±22)%, t= 2.762, P= 0.042]. The setup time of tracking components in the observation group was less than that in the reference group, and the difference was statistically significant [(44±24) s vs. (81±15) s, t=-4.310, P= 0.001]. Conclusions The improved tracking components are comparable to the manufacturer tracking components in the standard error of the Synchrony model. The improved components shorten the wear time and appropriately improve the coverage of the Synchrony model. Key words: Thoracic neoplasms; Abdominal neoplasms; CyberKnife; Stereotactic body radiation therapy; Standard error; Synchrony model

PATHOPHYSIOLOGICAL ASPECTS OF COMPRESSION THERAPY USE FOR PREVENTION OF SCARS AFTER BURNS

Mechanical squeezing of a skin cover by knitted clothes or its details is considered as the basic technological principle of compressive therapy. The definition of a level of squeezing the body by medical pressure clothes and manufacturing of an individual pattern for it sewing is offered to be carried out on the basis of physiologically adequate criteria of blood microcirculating of patients with various anthropometrical and functional blood pressure parameters with the help of the device - electronic tension-meter. Ischemization of the connective tissue parts of the scar, which is clinically confirmed by the foliation of the skin under compression elastic clothing, leads to a decrease in the mass of connective tissue and accelerated subsidence of the processes of inflammation and maturation of scar tissue. At the same time, the object affected by the compression therapy is the connective tissue that is formed, keeping the collagen fibers and fibroblasts in disorder. Creating a compression in excess of 25 mm Hg per cm2 in the early stages leads to a reduction in interstitial edema and limitation of excess formation of granulation tissue capillaries. According to the results of experimental and preliminary clinical studies, it was found that the optimum mechanical compression of the body tissues with elastic clothing is achieved by mechanical compression, which in quantitative terms corresponds to half of the average dynamic blood pressure, adjusted to the level of development of subcutaneous adipose tissue of the patient. In addition to the anatomical and physiological features of the structure of subcutaneous adipose tissue in different parts of the body, according to the results of clinical observations in people with different levels of vascular tone, it became necessary to take into account not only the average dynamic but also diastolic pressure, that largely determines the conditions of transcapillary blood exchange, resulting in additional compression of their outer compression clothing that can not only affect the level of local blood flow, but also the ability of hemodynamic function. While wearing medical clothing for compression therapy, the patient subjectively felt compression of the tissues, and objectively this was accompanied by mechanical pressure on the pressure sensor, and therefore – by switching on a light indicator, which indicated the achievement of the necessary mechanical impact on the compression therapy of the tissue. Thus, the suggested method provides a technological and accurate removal of the pattern of clothing for compression therapy, which will help to produce the optimal clothing size, and therefore to achieve the desired therapeutic effect.

Medical Adhesive-Related Skin Injuries and Associated Risk Factors in a Pediatric Intensive Care Unit.

To investigate the prevalence of medical adhesive-related skin injuries (MARSIs) and associated risk factors in a pediatric ICU (PICU). A cross-sectional design was adopted in the PICU of a university-based children's hospital in eastern China. A total of 232 patients were enrolled, and 611 person-days were analyzed. Researchers assessed all patients daily for 2 weeks. The use of adhesives and prevalence of MARSIs were recorded. The patients' clinical data were also collected. The prevalence of MARSIs was calculated daily, and the risk factors were examined statistically. The MARSI prevalence ranged from 23.53% to 54.17% (mean, 37.15%). Multivariate analysis identified being female, age 2 years or younger, hospital stays longer than 5 days, infection, edema, and surgery as independent risk factors. Prevalence by product ranged from 19 to 53 per 1,000 product-days with a mean of 34 MARSIs per 1,000 product-days. The major MARSI types were epidermal stripping and skin tear. The face was the most common MARSI site, and tracheal intubation was the most common inciting condition. Implicated products were acrylate tapes with elastic cloth backings. Researchers concluded that MARSI is common in the PICU. Skin stripping and skin tear were the most common types, and the face was the most vulnerable site for MARSI, typically attributable to the cloth tape used to affix tracheal intubation. Careful attention should be paid to children with identified risk factors (females, age 2 years or younger, longer hospital stays, edema, infection, or surgery).

An Effective Simulator for Intraoral Facial Skeletal Contour Surgeries

In East Asia, intraoral facial skeletal contour surgeries (intraoral FSCSs), including reduction gonioplasty, reduction malarplasty, and genioplasty, have become increasingly popular. Nonetheless, intraoral FSCSs are technically difficult and have a steep learning curve. An effective simulator could be beneficial for intraoral FSCS training. However, there is no intraoral FSCS simulator available. We introduced an intraoral FSCS simulator and assessed its effectiveness. An intraoral FSCS simulator was established by covering a 3-dimensional printed skull with elastic cloth. Twenty residents were enrolled and randomly divided into experimental group A and control group B. Group A performed the intraoral FSCS on the simulator for 3 times. Group B performed the intraoral FSCS on skull model for 3 times. The intraoral FSCS simulator and trainees' performance were evaluated by a trainee-reported questionnaire before and after training, the surgical outcomes were graded by 3 senior attending physicians. All questions and the surgical outcome were scored based on a 5-point Likert scale (1 = very poor, 5 = very good). The surgical times were recorded. The intraoral FSCS simulator (4.13 ± 0.64) simulated the surgical reality significantly better than the skull (2.6 ± 0.63). In intraoral FSCS simulator training, the restriction and compliance of the facial soft tissue were vividly mimicked (4.4 ± 0.51); the intraoral approach was vividly mimicked (4.07 ± 0.59). The intraoral FSCS simulator is significantly superior to the skull in improving participants' confidence in performing intraoral FSCS, power system control, and intraoral approach adoption (<0.001). The average surgical outcome score was 3.11 ± 0.45 in group A and 3.91 ± 0.24 in group B. The average surgical time was 177.78 ± 28.38 minutes in group A and 65.26 ± 15.38 minutes in group B. We developed the first intraoral FSCS simulator and proved its effectiveness preliminarily. Randomized controlled study with clinical cases is needed to further test its effectiveness.

Preparation and Application of Anionic and Cationic Waterborne Polyurethanes and Graphene-Cellulose Nanocrystal as an Antistatic Agent for Cashmere

The main purpose of this research work is to improve anti-static properties of Cashmere fabric by introducing application comprising anti-static agent by foaming which was made with cationic waterborne polyurethane and graphene-CNC. Cashmere fabric was cut into 10 pieces of sample cloth of 5 cm * 5 cm size, washed with acetone solution, and then dried in an oven at 60℃. Three forms of waterborne polyurethanes such as two forms of Cationic waterborne polyurethane (CWPU) and a form of Anionic waterborne polyurethane (AWPU) were synthesized. Cellulose nanocrystalline (CNC)/graphite powder solution with the ratio of 0.5/1, 1/1, 2/1 was prepared by ultrasonic probe stripping method, and the concentration of graphite powder was ensured to be 1 mg/ml. The fabric was treated with anionic and cationic WPUs foaming solution until the weight gain reached 2.5 - 3.5 wt%. After drying, the elastic cloth was foamed with graphene solution until the graphite content of the cloth was close to 10%, 20%, 40%, 60% respectively, and then dried for reserving. Characterization properties of pure graphite powder, pure CNC and graphene solution with different proportions of three components were tested by Fourier transform infrared spectrometer (FTIR), X-ray diffraction (XRD), Thermalgravitimetric analysis (TGA) and scanning electron microscopy (SEM). Take the original cloth, only WPU treated cloth and four clothes with different graphite content for the fabric performance test.

Compression Garments for Medical Therapy and Sports.

Compression garments are elastic clothing with an engineered compression gradient that can be worn on limbs, upper, lower, or full body to use for therapy and sports. This article presents an overview and review on the compression garments and concentrates on the design of compression garments with an appropriate pressure for specific applications. It covers the types of compression garments, fibers and yarns, knitted fabric construction, garment design, an evaluation system, and pressure measurement and modeling. The material properties, fabric properties, pressure modeling, and the garment design system presents the prediction, design, and fabrication of the compression garments. Lastly, the research status and directions are discussed.

Analogs of microgravity: head-down tilt and water immersion.

This article briefly reviews the fidelity of ground-based methods used to simulate human existence in weightlessness (spaceflight). These methods include horizontal bed rest (BR), head-down tilt bed rest (HDT), head-out water immersion (WI), and head-out dry immersion (DI; immersion with an impermeable elastic cloth barrier between subject and water). Among these, HDT has become by far the most commonly used method, especially for longer studies. DI is less common but well accepted for long-duration studies. Very few studies exist that attempt to validate a specific simulation mode against actual microgravity. Many fundamental physical, and thus physiological, differences exist between microgravity and our methods to simulate it, and between the different methods. Also, although weightlessness is the salient feature of spaceflight, several ancillary factors of space travel complicate Earth-based simulation. In spite of these discrepancies and complications, the analogs duplicate many responses to 0 G reasonably well. As we learn more about responses to microgravity and spaceflight, investigators will continue to fine-tune simulation methods to optimize accuracy and applicability.

An examination of an adapter method for measuring the vibration transmitted to the human arms

The objective of this study is to evaluate an adapter method for measuring the vibration on the human arms. Four instrumented adapters with different weights were used to measure the vibration transmitted to the wrist, forearm, and upper arm of each subject. Each adapter was attached at each location on the subjects using an elastic cloth wrap. Two laser vibrometers were also used to measure the transmitted vibration at each location to evaluate the validity of the adapter method. The apparent mass at the palm of the hand along the forearm direction was also measured to enhance the evaluation. This study found that the adapter and laser-measured transmissibility spectra were comparable with some systematic differences. While increasing the adapter mass reduced the resonant frequency at the measurement location, increasing the tightness of the adapter attachment increased the resonant frequency. However, the use of lightweight (⩽15g) adapters under medium attachment tightness did not change the basic trends of the transmissibility spectrum. The resonant features observed in the transmissibility spectra were also correlated with those observed in the apparent mass spectra. Because the local coordinate systems of the adapters may be significantly misaligned relative to the global coordinates of the vibration test systems, large errors were observed for the adapter-measured transmissibility in some individual orthogonal directions. This study, however, also demonstrated that the misalignment issue can be resolved by either using the total vibration transmissibility or by measuring the misalignment angles to correct the errors. Therefore, the adapter method is acceptable for understanding the basic characteristics of the vibration transmission in the human arms, and the adapter-measured data are acceptable for approximately modeling the system.

Application of the 3M elastic cloth adhesive tape application for fixation of the CVC catheter

Objective To investigate the effect of the fixation of CVC catheter via the 3M elastic cloth adhesive tape. Methods As for the control group, 60 patients with double cavity CVC catheterwereselected from January to June, 2013. They used the 3M Tegaderm TM transparent film regularly to fix the CVC catheter.As for the experimental group, 62 patients with double cavity CVC catheter were selected from July to December, 2013. They were treated with the 3M Tegaderm TM transparent film to fix the CVC catheter, and then used the 3M elastic cloth adhesive tape to fix the uncovered tube of the CVC catheter. The rates of catheter displacement, catheter occlusion, transparent film hemming, transparent film renewal were compared. Results The rates of catheter displacement, catheter occlusion, transparent film hemming, transparent film renewal were 6%, 6%, 8%, 8% of theexperimental group, which were significantly lower than 42%, 33%, 52%, 42% of the control group (χ2=20.87, 13.94, 27.87, 18.57, respectively; P<0.01). Conclusions The fixation method of experimental group is superior to the control group, and it has better effect on fixation of the CVC catheter, which has a great clinical significance. Key words: Elastic cloth adhesive tape; CVC catheter; Fixation

The Effects of Upper Limb Exercise Through Yoga on Limb Swelling in Chinese Breast Cancer Survivors – A Pilot Study

Breast cancer is the most common female cancer. The aim of this study was to assess the impact of yoga on lymphedema in breast cancer survivors. Repeated measures before and after the intervention. We enrolled 15 women with breast cancer who had not previously worn elastic clothing to treat lymphedema. The program was led by a certified trainer and consisted of 60-minute sessions, three times a week for 12 weeks. The volumes of the affected and normal limbs were measured. A self-assessed edema score was also recorded. Fifteen patients completed the program, none of whom suffered from complications related to exercise. There was no significant edema after exercise. No significant differences were noted in subgroup analysis by age or the affected arm. Yoga does not induce lymphedema. Lymphedema is usually treated with uncomfortable elastic clothing, and high-resistance exercise may induce edema. Yoga may be suitable for these patients.

Kinect-assisted Visualization of Functions of Two Real Variables in Mathematics

Abstract This paper will review the creation of a physical structure with technological components that will allow the student to visualize changes in depth on a real surface in a continuous manner. Using a Kinect for Windows and a projector, it is intended to create a didactic environment involving visual and gestural aspects, aiming for a better comprehension about plots of functions of two real variables as surfaces in space. Colored imagery is projected onto an elastic cloth where the student can create peaks and valleys, allowing them to perceive the relation between colors and depth changes in the surface.

Study on the Comfort of Knitted Elastic Fabrics based on Compressive Deformation Behavior

Comfort is one of the most important factors influencing the performance of apparel such as knitted elastic clothing, woven elastic shirts and elastic velvet fabrics. The compressive behavior of knitted elastic fabric affects the excellence in comfort. This study aimed to investigate the comfort of knitted elastic fabric based on compressive load. For this purpose, fabrics were produced with three different stitch densities (loop sizes), and compressive load tests were applied at three various penetration depths. According to these parameters, 9 fabric samples were prepared. Each sample was tested 30 times; therefore, the total number of examined cases was 270. The compressive load was measured using special designed tools, which were installed on the Instron tensile tester. The effects of penetration depth and loop size on compressive load were evaluated by using the CCD statistical model with four repeats of each experiment. The results indicate that the loop size and penetration depth have significant influence on the compressive load, which is modeled by a third order equation with R2 of 0.999 between applied model and experimental data. Consequently, the comfort could be predicted in terms of loop size and penetration depth. Utilizing this method can help apparel manufactures produce knitted elastic clothing with high comfort, according to the end use of garment.