Friction of Human Skin against Different Fabrics for Medical Use

Vilhena, Luís; Ramalho, A.

doi:10.3390/lubricants4010006

Cited by 48 publications

(42 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These characteristics result in an increased contact area between the foam and the skin and, possibly, also cause increased accumulation of liquids at the interface and, as a result, lead to higher adhesion forces and greater COFs. 7 Comparing our results with a recent study by Vilhena and Ramalho, 51 the COFs measured in our study (for dry fabrics), which are almost twice as high, can be explained by the different measurement methods. Vilhena and Ramalho used a method where the normal force is controlled, and the friction force is measured using horizontal sliding.…”

Section: Discussionsupporting

confidence: 82%

See 1 more Smart Citation

Effects of humidity on skin friction against medical textiles as related to prevention of pressure injuries

Schwartz

Magen

Levy

et al. 2018

International Wound Journal

View full text Add to dashboard Cite

Sustained pressure, shear forces, and friction, as well as elevated humidity/moisture, are decisive physical factors in the development of pressure injuries (PIs). To date, further research is needed in order to understand the influence of humidity and moisture on the coefficient of friction (COF) of skin against different types of medical textiles. The aim of this work was to investigate the effects of moisture caused by sweat, urine, or saline on the resulting COF of skin against different textiles used in the medical setting in the context of PI prevention. For that purpose, we performed physical measurements of static COFs of porcine skin followed by finite element (FE) computational modelling in order to illustrate the effect of increased COF at the skin on the resulting strains and stresses deep within the soft tissues of the buttocks. The COF of dry skin obtained for the 3 textiles varied between 0.59 (adult diaper) and 0.91 (polyurethane dressing). In addition, the COF increased with the added moisture in all of the tested cases. The results of the FE simulations further showed that increased COF results in elevated strain energy density and shear strain values in the skin and deeper tissues and, hence, in an increased risk for PI development. We conclude that moisture may accelerate PI formation by increasing the COF between the skin and the medical textile, regardless of the type of the liquid that is present. Hence, reduction of the wetness/moisture between the skin and fabrics in patients at a high risk of developing PIs is a key measure in PI prevention.

show abstract

Section: Discussionsupporting

confidence: 82%

“…Comparing our results with a recent study by Vilhena and Ramalho, the COFs measured in our study (for dry fabrics), which are almost twice as high, can be explained by the different measurement methods. Vilhena and Ramalho used a method where the normal force is controlled, and the friction force is measured using horizontal sliding.…”

Section: Discussionmentioning

confidence: 99%

Effects of humidity on skin friction against medical textiles as related to prevention of pressure injuries

Schwartz

Magen

Levy

et al. 2018

International Wound Journal

View full text Add to dashboard Cite

show abstract

“…These loads produce tangential and normal strain that can cause skin injuries. Normal strain to the skin is related to ulcers and bedsores and tangential strain to wounds and chafing (Vilhena and Ramalho, 2016;Kwiatkowska et al, 2009). The latter are the most common cases.…”

Section: Introductionmentioning

confidence: 99%

A new methodology to identify minimum strain anatomical lines based on 3-D digital image correlation

et al. 2017

View full text Add to dashboard Cite

Abstract.Today there is continuous development of wearable devices in various fields such as sportswear, orthotics and personal gadgets, among others. The design of these devices involves the human body as a support environment. Based on this premise, the development of wearable devices requires an improved understanding of the skin strain field of the body segment during human motion. This paper presents a methodology based on a three dimensional digital image correlation (3D-DIC) system to measure the skin strain field and to estimate anatomical lines with minimum deformation as design criteria for the aforementioned wearable devices. The errors of displacement and strain measurement related to 3-D reconstruction and out-of-plane motion are investigated and the results are acceptable in the case of large deformation. This approach can be an effective tool to improve the design of wearable devices in the clinical orthopaedics and ergonomics fields, where comfort plays a key role in supporting the rehabilitation process.

show abstract

“…Authors from Portugal investigated the friction of human skin against different fabrics for medicinal use [3], a team from the US presents a quantitative analysis of retrieved glenoid liners [4] and authors from Switzerland and Germany report on the development of a synthetic synovial fluid for tribological testing of joint prostheses [5]. Friction between the human skin and textiles is a critical factor in the formation of skin injuries which are caused if the loads and shear forces are high enough and/or take place over long periods of time.…”

mentioning

confidence: 99%

“…The topic is very interesting for the design of surfaces with a predefined tactile feel (such as smooth or soft). Vilhena and Ramalho [3] investigate four types of hospital fabrics: a reference hospital material that is used in bed linen, a foam dressing, an adult diaper and a bed protector made from soft, non-slip, waterproof polyethylene. The coefficient of friction (COF) was tested for these four materials at the ventral forearm of a 42-year-old male volunteer.…”

mentioning

confidence: 99%

Editorial: Friction and Lubricants Related to Human Bodies

Gebeshuber

Aken

2017

Lubricants

View full text Add to dashboard Cite

Biolubrication plays a crucial role in assisting the sliding contacts in many organs in the human body. Notable examples are the joints, the skin surface, the eye, the mouth and gastrointestinal tract, the lungs and the red blood cells. In all cases, reduced lubrication leads to increased friction and adhesion between the surfaces in contact, which may lead to the surfaces becoming stuck and damaged, ultimately leading to irritation, pain and trauma. Over the past few decades, major advancements have been achieved in the accumulation of knowledge on the subject.Joint lubrication has been shown to involve a complex and probably adaptive set of lubrication mechanisms involving the smoothness of the cartilage lining of the bone surfaces, the properties of the synovial fluid, which is a lubricating hydrogel of collagen fibrils, hyaluronic acid, glycoproteins (lubricin) and water, and a weeping mechanism by which joint pressure releases synovial fluid into the interspacing liquid film separating the cartilage surfaces.The lubrication of epidermal surfaces such as the skin, eye, mouth, lung and gastrointestinal tract follows different mechanisms. The relatively dry surface of the skin and hair is protected and lubricated by a thin coating of sebum in which moisture plays a critical role. On the one hand, moisture reduces the sliding resistance by providing suppleness, elasticity, plasticity, flexibility and softness to the deeper layers of the skin, but on the other, it increases the adhesive properties, friction and microbial proliferation of the outer surface. Loss of skin surface lubricity can lead to unpleasant sensations of contact with clothes, fabrics and solid surfaces, and can lead to uncomfortable stickiness, irritation, trauma and wounds such as decubitus. The naturally moist mucosal surfaces of the eyes, mouth, lung, gastrointestinal tract and vulva are kept in a lubricated state by specific biolubricants, i.e., glycoproteins (mucins), (phospho-)lipids and water. Insufficient lubrication can lead to various discomforting and clinical conditions such as the eyeball sticking to the eyelid or to contact lenses, xerostomia (dry mouth syndrome, due to a reduced salivary flow or quality, resulting in difficulty in swallowing and speaking), pleuric rub caused by various lung diseases, difficulty in sexual penetration, bowel irritation and trauma which can ultimately lead to cancer development. A special aspect of the biolubrication of the mouth is in the way it affects sensory and texture perception. The effect is strongly related to the perception of smoothness, creaminess and the opposite of roughness and astringency, which probably have the biological function to test the quality of the food material for the way it affects the lubrication of the mucosal lining of the alimentary tract, giving feedback to food preference and eating behavior (speed, subsequent food selection during a meal).In relation to the various symptoms of imparted lubrication, various studies are focused on specific lubricants and moisturiz...

show abstract

Friction of Human Skin against Different Fabrics for Medical Use

Cited by 48 publications

References 19 publications

Effects of humidity on skin friction against medical textiles as related to prevention of pressure injuries

Effects of humidity on skin friction against medical textiles as related to prevention of pressure injuries

A new methodology to identify minimum strain anatomical lines based on 3-D digital image correlation

Editorial: Friction and Lubricants Related to Human Bodies

Contact Info

Product

Resources

About