Understanding Stress-Strain Behavioral Change in Fabrics for Compression Bandaging

2020 ◽  
pp. 153473462091209
Author(s):  
Wan Syazehan Ruznan ◽  
Raechel M. Laing ◽  
Bronwyn J. Lowe ◽  
Cheryl A. Wilson ◽  
Timothy J. Jowett
Keyword(s):  
Behavioral Change ◽  
Compression Therapy ◽  
Lower Leg ◽  
Rate Of Change ◽  
Laboratory Setup ◽  
Compression Bandaging ◽  
Tensile Tester ◽  
Health Related ◽  
Rapid Drop ◽  
Do So

Bandages are common in many health-related treatments, including management of edema of the lower limb where they may remain in place for several days. The behavior of 2 bandage fabrics was investigated after exposure for up to 5 days to a multiaxial extension laboratory setup on a tensile tester in compression mode. The fabrics were extended 20% and remained under that machine setting. Stress-relaxation over time was determined by analyzing the rate of change over 24 hours and over 5 days. Most change, a rapid drop in force, occurred during the first 15 minutes; thereafter, for the next 12-hour period, a slower rate of decrease was observed. Both fabrics continued to relax gradually during the next 12 hours and continued to do so for up to 5 days. Little further change was evident during the last 12 hours or so. This phenomenon suggests that rewrapping may be appropriate (albeit not practical) after 12 hours of compression therapy to optimize the compression given to the lower leg. Relaxation behavior of these 2 fabrics can be explained using the generalized Maxwell-Wiechert model.

Neurovascular changes after four-layer compression bandaging in people with chronic venous leg ulcers

2007 ◽  
Vol 22 (2) ◽  
pp. 49-55 ◽  
Author(s):  
R Ogrin ◽  
P Darzins ◽  
Z Khalil
Keyword(s):  
Wound Healing ◽  
Wound Repair ◽  
Statistical Significance ◽  
Sensory Nerve ◽  
Compression Therapy ◽  
Clinical Problem ◽  
Leg Ulcers ◽  
Venous Leg Ulcers ◽  
Perfusion Measurement ◽  
Compression Bandaging

Objectives: Venous leg ulcers represent a major clinical problem, with poor rates of healing. Ideal treatment is compression bandaging. The effect of compression on neurovascular tissues involved in wound repair is unclear. This study aims to assess the effect of four-layer compression therapy (40 mmHg) on neurovascular function and wound healing in people with chronic venous leg ulcers – 15 people (55 years or older) with venous leg ulcers for more than six weeks. Methods: Basal microvascular perfusion measurement (MPM), oxygen tension (tc pO2) measured at sensor temperatures of 39°C and 44°C and sensory nerve function using electrical cutaneous perception thresholds (ECPT) at 5, 250 and 2000 Hz (corresponding to C, A δ and A β fibres) were assessed adjacent to the ulcer site, and at a mirror location on the non-ulcerated limb. Testing was undertaken before and after therapy for 5–12 weeks of four-layer compression bandaging. Results: There was significant improvement in tc pO2 at 44°C and ECPT at 2000 Hz ( P<0.05) compared with pre-intervention. Changes in basal MPM, tc pO2 at 39°C and ECPT at 5 and 250 Hz after compression therapy did not reach statistical significance. Conclusion: Four-layer compression bandaging in people with venous leg ulcers improved some components of neurovascularture in people with chronic venous leg ulcers. Whether this improvement has contributed to wound healing in this study requires further investigation.

scholarly journals Analysis of the Anti-Vaccine Movement in Social Networks: A Systematic Review

2020 ◽  
Vol 17 (15) ◽  
pp. 5394 ◽  
Author(s):  
Elvira Ortiz-Sánchez ◽  
Almudena Velando-Soriano ◽  
Laura Pradas-Hernández ◽  
Keyla Vargas-Román ◽  
Jose L. Gómez-Urquiza ◽  
...  
Keyword(s):  
Systematic Review ◽  
Social Networks ◽  
Economic Benefit ◽  
Evidence Based ◽  
Related Information ◽  
Personal Stories ◽  
Final Sample ◽  
Health Related ◽  
Harmful Effects ◽  
Do So

The aim of this study was to analyze social networks’ information about the anti-vaccine movement. A systematic review was performed in PubMed, Scopus, CINAHL and CUIDEN databases. The search equations were: “vaccine AND social network” and “vaccine AND (Facebook[title] OR Twitter[title] OR Instagram[title] OR YouTube[title])”. The final sample was n = 12, including only articles published in the last 10 years, in English or Spanish. Social networks are used by the anti-vaccine groups to disseminate their information. To do this, these groups use different methods, including bots and trolls that generate anti-vaccination messages and spread quickly. In addition, the arguments that they use focus on possible harmful effects and the distrust of pharmaceuticals, promoting the use of social networks as a resource for finding health-related information. The anti-vaccine groups are able to use social networks and their resources to increase their number and do so through controversial arguments, such as the economic benefit of pharmaceuticals or personal stories of children to move the population without using reliable or evidence-based content.

scholarly journals Compression therapy following ClariVein® ablation therapy: a randomised controlled trial of COMpression Therapy Following MechanO-Chemical Ablation (COMMOCA)

Trials ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Doireann P. Joyce ◽  
Stewart R. Walsh ◽  
Charyl J. Q. Yap ◽  
Tze T. Chong ◽  
Tjun Y. Tang
Keyword(s):  
Guideline Development ◽  
Varicose Veins ◽  
Controlled Trial ◽  
Clinical Excellence ◽  
Compression Therapy ◽  
Ablation Therapy ◽  
Compression Bandaging ◽  
Post Procedure ◽  
Chemical Ablation

Abstract Background Endovenous treatment of varicose veins has increased in popularity over the last decade. There remains, however, a degree of uncertainty regarding the role of compression bandaging or hosiery following this intervention. The National Institute for Clinical Excellence Guideline Development Group has advocated further research to evaluate the clinical and cost-effectiveness of this post-procedure intervention. In addition to this, the duration of compression bandaging also warrants clarification. Methods Ethical approval for the study was obtained from the Singhealth Centralised Institutional Review Board (CIRB Ref: 2017/2710). Consent to enter the study will be sought from each participant only after a full explanation has been given, an information leaflet offered and time allowed for consideration. Signed participant consent will be obtained. Patients will be randomised to either compression (group A) or no compression (group B). The primary aim of the study is to assess the patient’s pain scores for the first 10 days post procedure using a visual analogue scale. Secondary aims include an assessment of patient compliance with compression, quality of life scores, clinical effectiveness, rates of bruising and phlebitis, time taken to return to normal activities, patient satisfaction and occlusion rate at 6 months. Discussion The purpose of this study is to examine the effect of compression therapy in patients having mechano-chemical ablation (MOCA) therapy for truncal incompetence of their varicose veins using the ClariVein® device. This study may provide clarification on the role of compression therapy in patients undergoing MOCA. Trial registration ClinicalTrials.gov, NCT03685838. Registered on 26 September 2018.

scholarly journals On the Regularity of Fluctuations in Annual and Secular Polar Motions

1972 ◽  
Vol 48 ◽  
pp. 61-67
Author(s):  
H. J. Abraham
Keyword(s):  
Rate Of Change ◽  
Rates Of Change ◽  
Amplitude Fluctuations ◽  
Chandler Frequency ◽  
Do So

It may become possible to explain much of the behaviour and remarkable regularity of fluctuations in reported annual and secular polar motions if the potential that causes an immediate excitation is also a factor in that excitation's rate of change afterwards.The Chandler frequency, for example, being a function of the deformation excitation, should then vary with the librational and nutational displacements of the pole of rotation. It is found that the frequency does in fact do so.The annual excitation would be affected as well. The steady and seasonal primary excitations are known to cause free and forced nutations that are accompanied by periodic secondary excitations. These would arise partly at once and partly in the course of time; they would modulate the primary annual excitation and also one another, according to the period of the beats between the annual and Chandler nutations. It is found that the reported annual excitation shows phase and amplitude fluctuations of this kind. (The data also show another large excitation that occurred briefly on two occasions).Finally, the amplitude and phase of the secular librations appear to have followed an expression that is obtained by integrating the rates of change of excitation. This expression is a function of the amplitude of the annual excitation and the period of the beats between the annual and Chandler nutations.

scholarly journals Promoting Energy-Efficient Behavior by Depicting Social Norms in a Recommender Interface

2021 ◽  
Vol 11 (3-4) ◽  
pp. 1-32
Author(s):  
Alain Starke ◽  
Martijn Willemsen ◽  
Chris Snijders
Keyword(s):  
Human Computer Interaction ◽  
Social Norms ◽  
Energy Saving ◽  
Recommender Systems ◽  
Behavioral Change ◽  
Energy Efficient ◽  
User Data ◽  
Smart Thermostat ◽  
Normative Messages ◽  
Do So

How can recommender interfaces help users to adopt new behaviors? In the behavioral change literature, social norms and other nudges are studied to understand how people can be convinced to take action (e.g., towel re-use is boosted when stating that “75% of hotel guests” do so), but most of these nudges are not personalized. In contrast, recommender systems know what to recommend in a personalized way, but not much human-computer interaction ( HCI ) research has considered how personalized advice should be presented to help users to change their current habits. We examine the value of depicting normative messages (e.g., “75% of users do X”), based on actual user data, in a personalized energy recommender interface called “Saving Aid.” In a study among 207 smart thermostat owners, we compared three different normative explanations (“Global.” “Similar,” and “Experienced” norm rates) to a non-social baseline (“kWh savings”). Although none of the norms increased the total number of chosen measures directly, we show that depicting high peer adoption rates alongside energy-saving measures increased the likelihood that they would be chosen from a list of recommendations. In addition, we show that depicting social norms positively affects a user’s evaluation of a recommender interface.

scholarly journals With a little help from my peers: Depicting social norms in a recommender interface to promote energy conservation

2019 ◽  
Author(s):  
Alain Starke ◽  
Martijn Willemsen ◽  
Chris Snijders
Keyword(s):  
Energy Conservation ◽  
Social Norms ◽  
Recommender Systems ◽  
Behavioral Change ◽  
Show Evidence ◽  
User Data ◽  
Specific Source ◽  
Smart Thermostat ◽  
Normative Messages ◽  
Do So

How can recommender interfaces help users to adopt new behaviors? In the behavioral change literature, nudges and norms are studied to understand how to convince people to take action (e.g. towel re-use is boosted when stating that ‘75% of hotel guests’ do so), but what is advised is typically not personalized. Most recommender systems know what to recommend in a personalized way, but not much research has considered how to present such advice to help users to change their current habits. We examine the value of presenting normative messages (e.g. ‘75% of users do X’) based on actual user data in a personalized energy recommender interface called ‘Saving Aid’. In a study among 207 smart thermostat owners, we compared three different normative explanations (‘Global’, ‘Similar’, and ‘Expert’ norm rates) to a non-social baseline (‘kWh savings’). Although none of the norms increased the total number of chosen measures directly, we show evidence that the effect of norms seems to be mediated by the perceived feasibility of the measures. Moreover, how norms were presented (i.e. specific source, adoption rate) affected what measures were chosen within our Saving Aid interface.

scholarly journals Chronic venous insufficiency and interest of adjustable compression wrap devices

2019 ◽  
Vol 8 (3) ◽  
Author(s):  
Knut Kroeger ◽  
Joachim Dissemond
Keyword(s):  
Venous Insufficiency ◽  
Compression Therapy ◽  
Pressure Control ◽  
Lower Leg ◽  
Self Management ◽  
Compression Pressure ◽  
Pressure System ◽  
Individual Bands ◽  
Technical Features ◽  
The Individual

Adjustable compression wrap devices (ACWD) are a heterogenic group which makes it difficult to match them to individual patient in their best way, we tried to characterize these products by their technical features. We bought four different ACWD and compared them regarding construction and handling. ACWD show obvious advantages including self-management, self-application, re-adjustability and standardization of the compression therapy. Basically, all systems are one or more low stretch bandages that encircle the lower leg and adhere to itself with velcro. Some allow for a selective adjustment during the course of the application because in these systems the individual bands mutually intermesh. In others, the bandages must always be opened from proximal to distal in order to retighten individual segments. In addition only one enables the user to control the compression pressure of each segment by a built-in-pressure system. Different technical features of the four ACWDs make it difficult to compare them. For effective compression easy handling, selective adjustments and a reliable pressure control seem to be the most important aspects.

Succeeding with organizational change

2015 ◽  
Vol 29 (5) ◽  
pp. 19-21
Keyword(s):  
Design Methodology ◽  
Business Environment ◽  
Rate Of Change ◽  
Change Initiatives ◽  
Frequent Change ◽  
Content Type ◽  
Effective Performance ◽  
Pertinent Information ◽  
Practical Implications ◽  
Do So

Purpose – This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach – This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings – Rapid developments in technology and the increase in global competition combine to ensure that the business environment is subject to frequent change. Organizations must evolve to succeed and grow. Those which fail to do so are effectively reserving their place among the also-rans. These tough challenges facing companies aren’t going away in a hurry. Being equipped with the ability to adapt is therefore crucial. Indeed, effective performance in both the short and longer term depends on it. The failure rate of change initiatives remains staggeringly high. To say that change management needs to be taken seriously is therefore stating the obvious. Practical implications – The paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations. Originality/value – The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.

Responsibility

2021 ◽  
pp. 161-183
Author(s):  
James Wilson
Keyword(s):  
Public Health ◽  
Health Policy ◽  
Health System ◽  
System Design ◽  
Public Health Policy ◽  
Personal Responsibility ◽  
Health Related ◽  
The Right ◽  
Do So ◽  
Ethical Requirement

Public health policy requires decisions about how to distribute the burdens and benefits of reducing health-related risks. This chapter argues that responsibility should be assigned on the basis of the values that the health system is aiming to promote or respect, rather than by treating personal responsibility as an extrinsic ethical requirement on health system design. A health system’s answer to the question of whom to hold accountable, and how to do so, should be framed within the context of the right to public health. Where claims of irresponsibility are levelled, these should in the first instance be directed towards those who violate the right to public health, either through government or corporate agency, rather than at isolated individuals.

Compression bandaging: Identification of factors contributing to non-concordance

2019 ◽  
pp. 6-20 ◽  
Author(s):  
Sharon Boxall ◽  
Keryln Carville ◽  
Gavin Leslie ◽  
Shirley Jansen
Keyword(s):  
Thematic Analysis ◽  
Screening Tool ◽  
Compression Therapy ◽  
Wound Management ◽  
Venous Leg Ulcer ◽  
Recommended Treatment ◽  
Compression Bandaging ◽  
Knowledge Deficit ◽  
Patients At Risk ◽  
Resource Deficit

Aims To elucidate reasons for non-concordance with compression bandaging, subject the identified reasons to thematic analysis and use the resultant themes as the basis for the development of a screening tool to identify those patients at risk of non-concordance with compression bandaging. Method A literature search was undertaken using the terms ‘concordance’, ‘compression bandaging’ and ‘venous leg ulcer’. Articles were included if they discussed reasons for non-concordance with compression bandaging. Forty-one articles were identified which met inclusion criteria. The full texts were read and the reasons for non-concordance tabulated. These were then subjected to thematic analysis. Results Six themes emerged. These were termed knowledge deficit; resource deficit; psychosocial issues; pain/discomfort; physical limitations; and wound management. These themes were used to develop a screening tool to identify patients who exhibit barriers to concordance with compression bandaging. Discussion Compression bandaging is the recommended treatment for venous leg ulceration1-3. However, the degree of concordance with compression bandaging therapy remains at sub-optimal levels4,5. Consequently patients experience protracted ulceration. The development of a risk screening tool for non-concordance will permit targeted intervention to address barriers to concordance before the patient has a poor experience of compression therapy.

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