Pressure Area Distribution on a Variety of Clinical Surfaces

Study Overview
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Brief Summary
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Participants in the study will be adults with full mobility, with the capacity to give informed written consent. The investigators will recruit a group of volunteers in order to represent a variety of BMIs, in an attempt to gain a sample of the BMIs found in the population. The investigators will mimic current practices and standard equipment in order to replicate real conditions as closely as possible. Participants will lay on the following surfaces in the following scenarios Ambulance scoop: supine (lying flat on their back) A&E trolley: supine Hospital bed: supine Theatre table: supine Theatre table: Left lateral (lying on their left side at 90 degrees to the operating table) with pelvic binders (pads designed to keep the hip immobile). Each participant will remain in each position on that particular surface for a period of 25 minutes. A pressure mapping mattress will lie between the participant and the surface assessed to generate a pressure map. Following completion of data collection, data will be analysed and any areas of potential pressure damage vulnerability will be identified.

Official Title
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Pressure Area Distribution on a Variety of Clinical Surfaces in a Group of 51 Volunteers

Conditions
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Pressure Ulcer

Participation Criteria
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Eligibility Criteria
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Inclusion criteria: • Subjects will be individuals aged 18 and over, with good command of spoken and written English, full mobility, and the capacity to give informed, written consent. Provided there is no impairment to mobility, there is no upper age limit to participation. Exclusion criteria: Inability to provide informed written consent Having a BMI that falls outside of the stated ranges for the study (<19) Any significant impairment to mobility, for whatever reason, that prevents the patient from getting in and out of bed unaided, walking 100 metres unaided, or climbing a flight of stairs unaided. Patients who lack sufficient command of written and spoken English to allow them to give written informed consent take part.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Healthy volunteer participants<br>The investigators propose a snap shot study in a group of healthy volunteers of varying BMIs, laying on surfaces a patient would be exposed to during their hospital stay. Participants will lie on a variety of surfaces they may find themselves on during an emergency admission to hospital, including an operating table, in a variety of positions. Participants pressure distributions in each scenario will be measured with a pressure sensing mattress. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| PRESSURE AREA DISTRIBUTION ON A VARIETY OF CLINICAL SURFACES IN A GROUP OF 51 VOLUNTEERS | Establish the pressure distributions of current patient surfaces in use, for a variety of different sized patients, to identify any points in the patient's journey when they are at risk of developing pressure damage. | 125 minutes | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| PRESSURE AREA DISTRIBUTION ON A VARIETY OF CLINICAL SURFACES IN A GROUP OF 51 VOLUNTEERS | Gain information to allow calculation of a sample size for a definitive study. | 125 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pressure ulcer, pressure sore, patient positioning