192 results match your criteria wheelchair cushions


Hygro-thermo-mechanical performance of wheelchair cushion technologies in the prevention of pressure ulcers and moisture-associated skin damages.

Assist Technol 2021 Jul 21:1-10. Epub 2021 Jul 21.

MATIM Laboratory, University of Reims Champagne Ardenne, Reims, France.

This study aims at investigating the effects of three different wheelchair cushion technologies at the patient-wheelchair interface. To this end, eight participants were recruited to remain in an unrelieved seated position on a wheelchair successively equipped with three different cushions (foam, air-cell-based and gel), for a duration of 45 min. Interface pressure, temperature (measured with infrared thermography) and relative humidity were measured at the seat interface, at different timestamps. Read More

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Evaluation of interface pressure and temperature management in five wheelchair seat cushions and their effects on user satisfaction.

J Tissue Viability 2021 Aug 24;30(3):402-409. Epub 2021 May 24.

Department of Physiotherapy. University of Valencia, Spain; Group in Physiotherapy of the Ageing Processes: Socio-sanitary Strategies. Department of Physiotherapy. University of Valencia, Spain; Joint Research Unit IRIMED (La Fe- UV), Spain.

Background: Factors such as the manufacturing materials, shape or even the mechanical and thermal response of sitting Pressure Redistribution Support Surfaces (PRSS) can be potential contributors to pressure ulcers. However, few studies have compared a number of characteristics of the most frequently used devices.

Objective: To compare three potential contributors to pressure ulcers in five commercial PRSS: pressure redistribution, temperature and perceived comfort. Read More

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The influence of a contoured seating base on pressure distribution and discomfort.

Disabil Rehabil Assist Technol 2021 Mar 11:1-7. Epub 2021 Mar 11.

Department of Industrial Design, Eindhoven University of Technology, Eindhoven, The Netherlands.

Purpose: This research paper examines how contouring of a wheelchair seating base can help prevent pressure sores by distributing pressure over the buttocks. Contouring wheelchair cushioning is already done to some extent and has proved to be beneficial for pressure distribution. We researched the effect of contouring the seating base, and whether contouring the seating base affects effectiveness in pressure distribution and perceived discomfort. Read More

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Model construction and analysis of ride comfort for high-speed railway seat cushions.

Work 2021 ;68(s1):S223-S229

College of Mechanical Engineering, Donghua University, Shanghai, China.

Background: More and more people choose to travel by high-speed railway. The seats in these vehicles are an important contact point and comfort of the seat cushions needs attention.

Objective: The aim of this study is to choose among three seat cushions, the one that creates most comfort for a high-speed train. Read More

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A Primary Care Provider's Guide to Wheelchair Prescription for Persons With Spinal Cord Injury.

Top Spinal Cord Inj Rehabil 2020 ;26(2):100-107

Department of Physical Medicine and Rehabilitation, University of Alabama at Birmingham, Birmingham, Alabama.

The wheelchair is an essential tool for individuals with spinal cord injury (SCI). When the capacity and fit of a wheelchair is matched to the needs and abilities of an individual with SCI, health, function, community participation, and quality of life are maximized. Throughout an individual's life, function and health status can decline (or improve), necessitating a new wheelchair and/or seating components (eg, cushions and backrests). Read More

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December 2020

Interface pressure reduction effects of wheelchair cushions in individuals with spinal cord injury: a rapid review.

Authors:
Chen He Ping Shi

Disabil Rehabil 2020 Jun 23:1-8. Epub 2020 Jun 23.

Institute of Rehabilitation Engineering and Technology, University of Shanghai for Science and Technology, Shanghai, China.

Wheelchair cushion is routinely used to manage the sitting acquired pressure for an individual with spinal cord injury, but which kind of wheelchair cushion performs better in terms of interface pressure management is unclear. This review aims to compare different kinds of wheelchair cushions on their effect of interface pressure reduction in individuals with spinal cord injury. The databases of MEDLINE, CINAHL, EMBASE and Web of Science were searched. Read More

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Pressure Ulcer Risk Factors in Persons with Mobility-Related Disabilities.

Adv Skin Wound Care 2020 Mar;33(3):146-154

Stephen Sprigle, PhD, PT, is Professor, Rehabilitation Engineering and Applied Research Lab, Georgia Institute of Technology, in Atlanta, Georgia. Douglas McNair, MD, PhD, is Senior Advisor, Global Health - Analytics Innovation, Bill and Melinda Gates Foundation, in Seattle, Washington. Sharon Sonenblum, PhD, is Principal Research Engineer, Rehabilitation Engineering and Applied Research Lab, Georgia Institute of Technology, in Atlanta, Georgia. The authors have disclosed no financial relationships related to this article. Submitted August 30, 2019; accepted in revised form October 1, 2019.

Objective: To assess pressure ulcer (PU) risk in persons with mobility impairments using a large data set to identify demographic, laboratory, hemodynamic, and pharmacologic risk factors.

Methods: The cohort of interest was persons with disabilities who have mobility impairments and are diagnostically at risk of PUs. To define this cohort, diagnoses that qualify patients for skin protection wheelchair cushions were used. Read More

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Changes in residents' seating needs and perception of stakeholders since implementation of a provincial wheelchair program.

Disabil Rehabil Assist Technol 2021 Aug 17;16(6):668-673. Epub 2019 Dec 17.

Occupational Science and Occupational Therapy, University of British Columbia, Vancouver, Canada.

Background: People living in long-term care frequently have inadequate access to properly fitted wheelchairs. This can lead to potential problems with mobility, positioning, comfort, and skin integrity. A provincial programme to provide individually fitted lightweight wheelchairs to residents started in January 2016; however, no research has evaluated programme outcomes. Read More

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Burn on the buttocks caused by gel wheelchair cushion left on driver's seat of hand control car.

J Spinal Cord Med 2019 11 4;42(6):797-799. Epub 2019 Apr 4.

Department of Plastic and Reconstructive Surgery, Ogaki Municipal Hospital, Ogaki City, Japan.

Nowadays, people with paraplegia and quadriplegia have greater opportunities to venture into the general public. However, there is also an increased risk of associated hazards. This report describes a 42-year-old man with paraplegia, who was insensate below the T7 level and sustained burns from sitting on a gel wheelchair cushion that had been left on the driver-side seat of a hand control car on a sunny day. Read More

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November 2019

Wireless Pressure Ulcer Sensor: Validation in an Animal Model.

Ann Plast Surg 2019 04;82(4S Suppl 3):S215-S221

Department of Electrical & Computer Engineering, Worcester Polytechnic Institute.

Pressure ulcers are increasingly prevalent in an aging population. The most commonly used method of pressure ulcer prevention is pressure off-loading achieved by physically turning bedbound patients or by using expensive, single application devices such as wheelchair cushions. Our aim is to approach the problem of pressure ulcer prevention in a new way: a wireless sensor worn by the patient at locations susceptible to pressure injury. Read More

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Developing a process for assessing equivalency of wheelchair cushion pressure redistribution performance.

Assist Technol 2020 19;32(2):92-99. Epub 2018 Sep 19.

Rehabilitation Engineering and Applied Research Lab, Georgia Institute of Technology, Atlanta, Georgia, USA.

For wheelchair users who are at risk for developing pressure ulcers, cushion prescription seeks to address tissue integrity. Because many designs of wheelchair cushions exist, a need exists to estimate their performance in supporting the body. The objective of this research was to develop an approach to assess the equivalency of cushions with respect to their pressure redistribution performance. Read More

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January 2021

Measuring the impact of cushion design on buttocks tissue deformation: An MRI approach.

J Tissue Viability 2018 Aug 9;27(3):162-172. Epub 2018 May 9.

School of Health Sciences, Ulster University, Shore Road, Jordanstown, Newtownabbey, County Antrim, BT38 0QB, Northern Ireland, United Kingdom. Electronic address:

Aim: To establish a research approach for describing how different wheelchair cushion designs impact buttocks tissue deformation during sitting.

Materials And Methods: The buttocks of 4 individuals with spinal cord injury and significant atrophy were scanned sitting in a FONAR Upright MRI. Scans were collected with the individuals' buttocks fully suspended without pelvic support, and seated on 3 different commercially available wheelchair cushions. Read More

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Pressure Relieving Effect of Adding a Pelvic Well Pad to a Wheelchair Cushion in Individuals With Spinal Cord Injury.

Ann Rehabil Med 2018 Apr 30;42(2):270-276. Epub 2018 Apr 30.

Department of Rehabilitation Medicine, National Rehabilitation Center & Hospital, Seoul, Korea.

Objective: To identify the pressure relieving effect of adding a pelvic well pad, a firm pad that is cut in the ischial area, to a wheelchair cushion on the ischium.

Methods: Medical records of 77 individuals with SCI, who underwent interface pressure mapping of the buttock-thigh area, were retrospectively reviewed. The pelvic well pad is a 2. Read More

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Pressure distribution analysis in three wheelchairs cushions of subjects with spinal cord injury.

Disabil Rehabil Assist Technol 2019 08 18;14(6):555-560. Epub 2018 Apr 18.

a Department of Occupacional Therapy , Federal University of São Carlos , São Carlos , Brazil.

Pressure injuries are a complication due to spinal cord injury. The objective of the study is to compare the pressure distribution in the wheelchair seat of subjects with spinal cord injury using 3 pads (Roho, Varilite and Jay). Pressure analysis was performed on 10 participants in two situations: (a) the participant sitting in static posture and (b) with the wheelchair being used for locomotion. Read More

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Paratonia in Flemish Nursing Homes: Current State of Practice.

Am J Alzheimers Dis Other Demen 2018 Jun 22;33(4):205-214. Epub 2018 Feb 22.

1 Department of Rehabilitation Sciences and Physiotherapy, Ghent University, Ghent, Belgium.

Background: Paratonia is a major underlying motor problem impeding functionality and locomotion in dementia. Despite its undeniable impact on patient's quality of life and daily care, there is a lack of evidence-based therapy on patients with this condition.

Methods: We surveyed physiotherapists working in nursing homes in Flanders (Belgium) concerning the use and perceived effect of therapeutic strategies and positioning methods/aids. Read More

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Comparisons of Agricultural Seating for Paraplegia.

J Agric Saf Health 2017 Jan;23(1):23-37

University of New Mexico.

People with spinal cord injury/paraplegia are operating agricultural machinery despite the lack of research evidence to support seating interventions. These operators represent a vulnerable population in the agricultural workforce, and information to support their health in the workplace is urgently warranted. This research compared a group of subjects with paraplegia on different intervention cushion conditions during a simulated tractor driving task. Read More

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January 2017

Deep tissue loads in the seated buttocks on an off-loading wheelchair cushion versus air-cell-based and foam cushions: finite element studies.

Int Wound J 2017 Dec 6;14(6):1327-1334. Epub 2017 Sep 6.

Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel.

For wheelchair users, a common injury is a sitting-acquired pressure ulcer (PU) which typically onsets near the interface between the ischial tuberosity (IT) and the overlying soft tissues. The risk of developing PUs can be reduced considerably if an adequate cushion is placed on the wheelchair in order to protect tissues from PUs by minimising interface mechanical loads between the body and cushion and also, exposure to internal soft tissue loads. In this work, we studied the biomechanical performances of an off-loading (OL) cushion with limited adjustability, in comparison to a standard foam cushion and a fully adjustable air-cell-based (ACB) cushion. Read More

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December 2017

Trunk function in hemiplegic wheelchair users when using wheelchair cushions.

Authors:
Kyohei Kawada

J Phys Ther Sci 2017 Sep 15;29(9):1607-1611. Epub 2017 Sep 15.

Department of Physical Therapy, Faculty of Health Science, Tokoha University: 1-30 Mizuochi, Aoi, Shizuoka, Shizuoka 420-0831, Japan.

[Purpose] The purpose of this study was to investigate adapting wheelchair cushions to hemiplegic individuals based on trunk function and a single-leg driving motion. [Subjects and Methods] Subjects were 18 hemiplegic adults who were able to use and sit up in a wheelchair. Subjects were grouped into Able and Unable groups according to the Functional Assessment for Control of the Trunk (FACT). Read More

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September 2017

Prospective observational study of single- or multi-compartment pressure ulcer prevention cushions: PRESCAROH project.

J Wound Care 2017 09;26(9):537-544

Centre de l'Arche, Saint-Saturnin, France.

Objective: In patients with reduced mobility, specialised pressure-relieving supports (mattresses, beds and cushions) are widely used to reduce or relieve the interface pressure between the skin and support surfaces to prevent incidence of pressure ulcers (PUs). The primary objective of these two observational studies was to assess the incidence of PUs in patients at high risk of PUs, seated in a wheelchair using a single- or multi-compartment air cushion. The level of patient satisfaction with the comfort and the views of the care team that used the air cushions were considered as secondary objectives. Read More

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September 2017

Experts' opinion on manual wheelchair adjustments for adults with diabetes.

Disabil Rehabil Assist Technol 2018 01 2;13(1):78-86. Epub 2017 Mar 2.

a School of Physical and Occupational Therapy, McGill University , Montreal , Quebec , Canada.

Diabetes is a global health concern that can lead to mobility limitations necessitating a wheelchair. However, there are currently no guidelines for wheelchair adjustments tailored to the diabetic population.

Purpose: To describe relevant manual wheelchair adjustments for adults with diabetes, and to explore how these adjustments apply to populations living in less-resourced countries. Read More

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January 2018

Correlation of ISO 16840-2:2007 impact damping and hysteresis measures for a sample of wheelchair seating cushions.

Assist Technol 2018 7;30(2):77-83. Epub 2017 Feb 7.

d Wolfson School of Mechanical and Manufacturing Engineering , Loughborough University , Leicestershire , England.

Hysteresis and impact damping measures were made on 37 wheelchair seating cushions according to ISO 16840-2:2007 Wheelchair seating-Part 2: Determination of physical and mechanical characteristics of devices intended to manage tissue integrity-seat cushions. These measures were then correlated using Spearman and Pearson correlations to investigate the relationship between them. Correlations were also conducted on the subset of cushions comprising only those with planar foam construction. Read More

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September 2019

Off loading wheelchair cushion provides best case reduction in tissue deformation as indicated by MRI.

J Tissue Viability 2017 Aug 18;26(3):172-179. Epub 2017 May 18.

Weber State University, Ogden, UT, USA. Electronic address:

Off-loading or the Orthotic approach to wheelchair seating has been used successfully to provide seating that optimizes tissue protection at the ischial tuberosities (ITs), sacrum and greater trochanters. Recent publications indicate the significance of preventing tissue compression to reduce ulcer formation. Comparative Magnetic Resonance Imaging (MRI) of individuals seated on two cushion types provides direct evidence of tissue unloading resulting in the reduction in tissue compression. Read More

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On the estimation of maximum stress in cushions for wheelchair patients who are prone to develop pressure injuries.

Technol Health Care 2017 Aug;25(4):749-760

CIITEC-Instituto Politécnico Nacional, Cerrada Cecati s/n México City, Mexico.

Background: Pressure injuries are an important health care issue. This problem is even more evident with patients with neurological conditions.

Objective: This study aims to develop an analytical tool to predict the magnitude of the maximum stresses developed at the wheelchair cushion-patient contact area. Read More

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An MRI investigation of the effects of user anatomy and wheelchair cushion type on tissue deformation.

J Tissue Viability 2018 Feb 11;27(1):42-53. Epub 2017 Apr 11.

Tel Aviv University, Department of Biomedical Engineering, Ramat Aviv, Israel.

Aim Of The Study: Tissue deformation is recognized as an important risk factor for pressure injuries. This study investigated the effects of anatomy and wheelchair cushion type on tissue deformation.

Materials And Methods: Direct 3-dimensional tissue deformation response was measured for six participants sitting on six different wheelchair cushions using MR imaging. Read More

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February 2018

Performance Assessment of a Humidity Measurement System and Its Use to Evaluate Moisture Characteristics of Wheelchair Cushions at the User-Seat Interface.

Sensors (Basel) 2017 Apr 5;17(4). Epub 2017 Apr 5.

Faculty of Life Science and Education, University of South Wales, Treforest, Pontypridd CF37 1DL, UK.

Little is known about the changes in moisture that occur at the body-seat interface during sitting. However, as increased moisture can add to the risk of skin damage, we have developed an array of MEMS (Micro-Electro-Mechanical System) humidity sensors to measure at this interface. Sensors were first evaluated against traceable standards, followed by use in a cross-over field test ( = 11; 20 min duration) using different wheelchair cushions (foam and gel). Read More

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Preliminary development of an advanced modular pressure relief cushion: Testing and user evaluation.

J Tissue Viability 2018 Feb 20;27(1):2-9. Epub 2017 Mar 20.

Advanced Platform Technology Center, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH 44106, USA; Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Orthopaedics, Case Western Reserve University, Cleveland, OH 44106, USA. Electronic address:

Study Aim: Effective pressure relief cushions are identified as a core assistive technology need by the World Health Organization Global Cooperation on Assistive Technology. High quality affordable wheelchair cushions could provide effective pressure relief for many individuals with limited access to advanced assistive technology.

Materials: Value driven engineering (VdE) principles were employed to develop a prototype modular cushion. Read More

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February 2018

Everyday sitting behavior of full-time wheelchair users.

J Rehabil Res Dev 2016 ;53(5):585-598

George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA.

The objective of this study was to describe the in-seat movement and weight-shifting behavior of full-time wheelchair users. We measured everyday sitting behavior for 192 d across 28 individuals who used manual wheelchairs as their primary mobility device. To obtain the measurements, we used eight thin force sensors placed under participants' wheelchair cushions. Read More

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January 2018

The effect of cushion properties on skin temperature and humidity at the body-support interface.

Assist Technol 2018 29;30(1):1-8. Epub 2016 Sep 29.

e Department of Occupational Therapy, College of Health Science , Kaohsiung Medical University , Kaohsiung City , Taiwan.

The purpose of this study is to explore the effects of various cushions on skin temperature and moisture at the body-seat interface during a 2-hour period of continuous sitting. Seventy-eight participants were randomly assigned to sit on one of the three types of wheelchair cushions for unrelieved sitting for over 2 hours. Skin temperature and relative humidity (RH) were measured under the subjects' ischial tuberosities and thighs bilaterally with digital temperature and humidity sensors. Read More

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September 2016

Tractor seating for operators with paraplegia.

Assist Technol 2017 22;29(1):37-47. Epub 2016 Jul 22.

a Division of Occupational Therapy , University of New Mexico , Albuquerque , New Mexico , USA.

This feasibility study explored the utility of using a pressure mapping instrument to explore the variable of pressure under subjects sitting on a commonly used tractor seat, and four other cushion interventions. The research model used single-subject with repeated measures during simulated tractor operation. In examining the graphical images and pressure mapping data available from the instrument; the contour tractor seat used in this study was not sufficient in redistributing pressure for people with paraplegia operating tractors, putting them at greater risk for acquiring a pressure ulcer. Read More

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December 2017