A Quasi-Experimental Evaluation of an Education Program for the Use of Electrical Stimulation Therapy to Heal Pressure Injuries.

Electrical stimulation (E-Stim) involves applying low levels of electrical current. Despite high-level recommendations for E-stim use in many pressure injury (PrI) best practice treatment guidelines, clinicians seldom use E-Stim. PURPOSE: This quasi-experimental design study aimed to determine whether an educational program could improve health care providers' knowledge and attitudes regarding the use of E-Stim for treating PrIs in community-dwelling individuals with spinal cord injury living in 1 region of Ontario, Canada. METHODS: An educational intervention based on a university-level continuing education program was developed as part of a multifaceted knowledge mobilization project. Health care providers (eg, nurses, physicians, and allied health professionals) from multiple agencies were invited to participate. The instructional series included 8 online modules on background theory and knowledge and a hands-on workshop that familiarized participants with the equipment necessary to deliver E-Stim. Knowledge (percentage of correct answers using a knowledge test developed by the research team) and attitudes (assessed using the E-Stim Attitude Survey in which items were scored using a 5-point Likert scale (where 0 indicated a negative attitude and 5 a positive attitude) were evaluated 3 times (pre-education, post-online, and post-workshop). Data were aggregated into unit-weighted averaged composites of 3 attitude subscales (resources, evidence-based practice, and education), which were compared before and after educational sessions using a linear mixed effect model. RESULTS: Among the 83 participants, a significant increase in knowledge scores was noted from pre-education (55.9%) to post-online (78.4%) and post-workshop (78.0%) (X² [2] = 89.34; P <.001). A significant increase in attitude scores was noted across time points (resources: X² [2] = 27.32, P <.0001; evidence-based practice: X² [2] = 38.93, P <.0001; and education: X² [2] = 92.88, P <.0001). For the evidence-based practice subscale, attitude increased significantly post-online (t[127] = 6.03, P <.0001). For the resources subscale, a significant increase was detected after post-workshop (t[113] = 5.23, P <.001]. CONCLUSIONS: Online education increased health care providers' knowledge about E-Stim; however, hands-on workshops were required to change certain attitudes about the use of E-Stim for wound healing. Further research is required to evaluate 1) whether a change in knowledge and attitude scores translates to a practice change for health care providers and 2) the potential importance of ongoing coaching and mentorship for a sustainable change in the clinical setting.

Influence of Nutrition and Nonnutrition Factors on Pressure Injury Outcomes Among At-Risk Asian Nursing Home Residents.

OBJECTIVE: Given evidence that malnutrition and immobility increase the risk of pressure injuries (PIs) in nursing home (NH) residents and that body mass index guidelines related to undernutrition may differ between Asian and non-Asian populations, the purpose of this study was to describe differences in overall nutrition, dietary intake, and nonnutrition risk factors for PIs between Asian and non-Asian NH residents. DESIGN AND SETTING: Secondary data analysis of a 3-week PI prevention randomized controlled trial in seven Canadian NHs. PATIENTS: Asian (n = 97) and non-Asian (n = 408) residents at moderate or high mobility-related risk of PI. MAIN OUTCOME MEASURE: Incident PI by racial subgroups. MAIN RESULTS: Asian residents (PI = 6) consumed significantly smaller meals and marginally different patterns of daily dietary consumption of protein types, liquid supplements, and snacks; took more frequent tub baths; and had marginally lower body mass index than non-Asian residents (PI = 4). CONCLUSIONS: Findings are consistent with earlier research suggesting that nutrition consumption and care patterns may predispose Asian NH residents to develop more PIs than their non-Asian counterparts. Future research should focus on the threshold for and types of nutrition support sufficient to improve nutrition status and reduce PI risk.

The Origin of Present-on-admission Pressure Ulcers/Injuries Among Patients Admitted from the Community: Results of a Retrospective Study.

Research about community-acquired pressure ulcer/injuries (CAPU/I) remains limited. PURPOSE: The aim of this descriptive, retrospective study was to quantify the number of patients with pressure ulcers/injuries (PU/Is) present on admission (POA), with particular attention to patient residence (home or skilled/long-term care facility [SNF]). METHODS: Data from the electronic medical records (EMR) and the incident reporting system of a 620-bed integrated health system in northern California from January 1, 2017, to December 31, 2017, were examined and used to create a registry that included patient demographics, length of stay (LOS), source of admission (home versus SNF), co-existing conditions, and documentation on end of life and death. A manual chart review was conducted to confirm the accuracy of data entered into the registry. All patients at least 18 years old and with a nurse-reported incident and EMR-documented PU/I that was listed as POA were included; pediatric, pregnant, or incarcerated patients were excluded. Extracted variables included demographic data, stage of PU/I on admission, and major diagnosis (or co-existing condition) by groups (spinal cord injuries [tetraplegia, paraplegia], neurological conditions, end-stage renal disease, cardiac and vascular disease, end of life [EOL], and death while in hospital during the year 2017). Descriptive analysis was used to examine the data. RESULTS: Of the 2340 records of patients with an PU/I POA, 477 were complete and analyzed. The majority (336, 70.4%) originated from home. Patients admitted from home were younger than those admitted from SNF (average age 62.9 and 71.5 years, respectively) and had a higher proportion of co-existing paraplegia/tetraplegia (24.4% vs 12.8%). More than 60% of all patients had a stage 3, stage 4, or unstageable PU/I. CONCLUSION: The majority of patients with a PU/I POA were admitted from home. Additional research and improved efforts to help high-risk individuals living at home prevent and manage PU/Is are needed.

Management of Chronic Wounds: Diagnosis, Preparation, Treatment, and Follow-up.

Management of chronic wounds remains challenging in terms of prevalence and complexity. Considerable progress has been made in understanding the science of wound healing during the past decade, sparking volumes of publications and the development of hundreds of dressing and therapy options. There is a need for a simpli ed overview of evidence-based criteria to assist in the accurate diagnosis and appropriate management of chronic wounds in all care settings. An expert panel of 11 wound healing specialists experienced in various care settings convened to discuss best practices and recommended guidelines for managing major chronic wound types. Prior to the meeting, panel members reviewed 8 preselected peer-reviewed articles and 1 white paper containing treatment algorithms for all major chronic wound types. During the meeting, each panelist presented current evidence-based guidelines regarding a specific chronic wound type and case studies to illustrate concepts in the guidelines. This publication is a result of the panel discussion and presents an overview of literature- and experience- based criteria to help guide chronic wound diagnosis, assessment, treatment, and follow-up. A cycle of steps is presented as a framework to guide holistic care for all patients with chronic wounds, including de- hisced surgical wounds, diabetic foot ulcers, venous leg ulcers, arterial insu ciency ulcers, and pressure ulcers/injuries. Emphasis is placed on criteria to assist accurate diagnosis and dressing/therapy selection, holistic elements of patient and wound bed preparation, interventions to achieve patient adherence to a care plan, and follow-up to help prevent wound recurrence.

The Potential Role of Zinc Supplementation on Pressure Injury Healing in Older Adults: A Review of the Literature.

INTRODUCTION: Compromised nutritional status is common among older adults (aged ≥ 65 years) and is a risk factor for pressure injuries (PIs), which may lead to poor clinical outcomes. The aim of this review was to determine whether or not poor PI healing in older adults is a result of suboptimal zinc status. METHODS: A literature search was performed in PubMed from 2001 to 2016 using the key words: "zinc status," "pressure ulcer," "pressure ulcers in older adults," "wound healing," and "zinc sulfate." Inclusion criteria consisted of adequate sample size, nonacute setting, clinical trial or observational study, sound methodology, and generalizable findings for primary and secondary outcomes, which included food intake, oral nutritional supplement (ONS) consumption, risk for malnutrition, nutrient loss from wound exudate, and lab values. RESULTS: Of 41 total studies, 10 satisfied the inclusion criteria and investigated PI in older adults versus nutritional intake. Both standard and specialty ONS interventions, which contain additional fortification, improve outcomes, though findings are inconsistent regarding formulations preferable for the treatment of older adults. Monitoring for nutritional deficiencies, including Zn, is essential for optimal patient outcomes. DISCUSSION: Recently, Zn in combination with ONS containing additional kilocalories, protein, and other trace elements, has been investigated for PIs. Although both standard and specialty ONS interventions improve outcomes, findings are inconsistent regarding preferable formulations for the treatment of older adults. Monitoring for nutritional deficiencies, including Zn, is essential for optimal patient outcomes. Unreliability of biomarkers for frank Zn deficiency make diagnosis uncommon, and oral Zn sulfate administration has not shown significant effects on PI outcomes in the past. CONCLUSION: This population benefits from the clinical application of supplementation with preparations containing Zn, added calories, protein, and other trace elements. This improves outcomes, decreases healing time, and mitigates comorbidities.

Iyengar Yoga Therapy Intervention for Ischial Pressure Ulcers in a Patient with Amyotrophic Lateral Sclerosis: A Case Study.

BACKGROUND: Although some research suggests that the formation of pressure ulcers is rare in patients with amyotrophic lateral sclerosis (ALS), several patients have nonetheless developed this problem. To date, however, no case reports in the literature have described patients with ALS who develop ischial pressure ulcers. Outside of the ALS literature, evidence suggests that ischial pressure ulcers frequently develop in wheelchair users and also in patients treated in various health care settings. CASE DESCRIPTION: A patient diagnosed with ALS reported the development of ischial pressure ulcers after consistent immobility for 1 year (32 months after her ALS diagnosis). This patient, who was sitting on the wounds, was treated with ointment and morphine; the latter was ineffective in controlling the pain. Moving the patient from sitting to supine, lateral, or semilateral positions, either on the bed or wheelchair, to separate the ulcers from the surface of the chair or bed was deemed impossible because of exaggeration of other symptoms, including shortness of breath and pain in other parts of the body. A new method of postural alignment was developed to alleviate the pain associated with the pressure ulcer. This method, Iyengar yoga therapy, which uses props to reposition a patient, alleviated pain and healing of two pressure ulcers of the patient after 3 weeks of starting this intervention. CONCLUSION: Although the ischial pressure ulcers were successfully treated in a patient with ALS, further study is necessary to investigate the effectiveness of this postural alignment intervention in ALS and other patient populations for the management of ischial pressure ulcers.

Hyperbaric oxygen for the treatment of nonhealing arterial insufficiency ulcers.

There is limited data regarding hyperbaric oxygen's effectiveness in the treatment of nonhealing arterial insufficiency ulcers. This study was designed to analyze healing rates and amputation rates in patients who underwent adjunctive hyperbaric oxygen for a nonhealing arterial insufficiency ulcer. A retrospective chart review was completed on patients who underwent hyperbaric oxygen for arterial insufficiency ulcers that failed to heal despite standard treatment. Information collected included complete ulcer healing, amputation, and patient characteristics. There were 82 patients identified. A majority did not have diabetes (84.1%). The overall rate of healing was 43.9%. The overall major amputation rate was 17.1%. The amputation rate among those who healed was 0% compared to 42.4% among those not healed (p < 0.0001). Dialysis was predictive of major amputation (p = 0.03). Our findings suggest hyperbaric oxygen can play a role in management of arterial insufficiency ulcers that have failed standard treatment. The overwhelming majority of these patients did not have diabetes, which allows this study to be translated to patients with a primary arterial insufficiency ulcer. These results support the use of hyperbaric oxygen for select nonhealing arterial insufficiency ulcers that have failed standard therapy and the need for a prospective pilot study.

Clinical experience with Leptospermum honey use for treatment of hard to heal neonatal wounds: case series.

Preterm, critically ill neonates represent a challenge in wound healing. Many factors predispose infants to skin injuries, including decreased epidermal-dermal cohesion, deficient stratum corneum, relatively alkaline pH of skin surface, impaired nutrition and presence of multiple devices on the skin. We present a case series describing the use of medical-grade honey-Leptospermum honey (Medihoney), for successful treatment of slowly healing neonatal wounds, specifically stage 3 pressure ulcer, dehiscent and infected sternal wound, and full-thickness wound from an extravasation injury.

Mobile health platform for pressure ulcer monitoring with electronic health record integration.

Pressure ulcers frequently occur in patients with limited mobility, for example, people with advanced age and patients wearing casts or prostheses. Mobile information communication technologies can help implement ulcer care protocols and the monitoring of patients with high risk, thus preventing or improving these conditions. This article presents a mobile pressure ulcer monitoring platform (mULCER), which helps control a patient's ulcer status during all stages of treatment. Beside its stand-alone version, it can be integrated with electronic health record systems as mULCER synchronizes ulcer data with any electronic health record system using HL7 standards. It serves as a tool to integrate nursing care among hospital departments and institutions. mULCER was experimented with in different mobile devices such as LG Optimus One P500, Samsung Galaxy Tab, HTC Magic, Samsung Galaxy S, and Samsung Galaxy i5700, taking into account the user's experience of different screen sizes and processing characteristics.

A two-year retrospective review of suspected deep tissue injury evolution in adult acute care patients.

Suspected deep tissue injury (sDTI) was recently defined as a pressure ulcer category, and knowledge about the evolution of these ulcers is limited. The purpose of this single-site, 2-year, retrospective, IRB-approved study was to increase understanding of the evolution and outcomes of sDTI. Inclusion criteria were hospitalized patients, 18 years or older, with a sDTI confirmed by a wound care nurse. Patient charts and WOC nurse notes were examined and patient demographics and DTI variables abstracted. All patients received standardized, comprehensive care for pressure ulcer prevention and treatment. Seventy-seven (77) patients, average age 67.5 years (range 32-91 years), with 128 sDTIs were identified and included in the study. The majority were men (52, 67.5%) and non-Hispanic Caucasian (68, 88.3%). Twenty-three (23, 31%) were overweight. The most common comorbidities were coronary artery disease (38, 50%) and diabetes mellitus (33, 43%), and the vast majority (67, 88.1%) had altered mobility (67, 88.1%), spent time in the intensive care unit (64, 84.2%), and were incontinent (64, 84.2%). The most common areas involved were the sacrum (51, 39.8%) and the heel/Achilles region (37, 28.9%). Maroon-purple discoloration of intact skin was the most commonly documented presentation (115 ulcers, 89.9%). Average length of follow-up was 6 days (range 1 day to 14 weeks). At the final assessment, 85 sDTIs (66.4%) completely resolved or were progressing toward resolution, 31 remained unchanged and were still documented as purple-maroon discoloration or a blood-filled blister, and deterioration to full-thickness tissue loss occurredin 12 (9.3%). These observations may offer important insights into the evolution of sDTIs. Research is needed to identify sDTI risk factors and most effective protocols of care.

Nutrition and skin ulcers.

PURPOSE OF REVIEW: Skin ulcerations cause significant morbidity and mortality, while driving up healthcare utilization and costs. Interventions to prevent ulcers and improve wound healing times are needed to reduce the burden on patients and healthcare systems. It has been well established that weight loss, protein-calorie malnutrition, and dehydration are risk factors for pressure ulcers. Many nutritional interventions have been studied, with studies being of variable quality and producing mixed results. This review aims to clarify the current evidence and highlights the recent advances in the area of nutrition for the prevention and management of skin ulceration. RECENT FINDINGS: Markers for assessing nutritional status will be reviewed first, followed by a discussion on the theoretical benefit of various nutritional interventions on wound healing. Recommendations for nutrient repletion are also included. Finally, the most recent or important literature will be highlighted and the risks and benefits of supplementation are debated. There is mixed evidence for most nutritional interventions, with most studies being of poor quality with variable study designs, lack of control groups, small sample sizes, and short study lengths. SUMMARY: Long-term randomized trials of individual nutrients and clinically relevant endpoints are needed to definitively show the benefit of additional nutritional supplementation over dietary interventions. Until those studies become available, best evidence suggests the importance of screening for malnutrition, calculating resting energy expenditure and caloric needs, and monitoring dietary intake of essential nutrients.

The effect of hyperbaric oxygen in the enhancement of healing in selected problem wounds.

Problem wounds represent a significant and growing challenge to our healthcare system. The incidence and prevalence of these wounds are increasing in the population, resulting in growing utilization of healthcare resources and dollars expended. Venous leg ulcers represent the most common lower-extremity wound seen in ambulatory wound care centers, with recurrences frequent and outcomes often less than satisfactory. Pressure ulcers are common in patients in long-term institutional care settings adding significant increases in cost, disability and liability. Foot ulcers in patients with diabetes contribute to more than half of lower-extremity amputations in the United States in a group at risk, representing only 3 percent of the population. In response to this challenge, specialized programs have emerged designed to identify and manage these patients, using standardized protocols and a variety of new technologies to improve outcomes. Hyperbaric oxygen treatment (HBO2T) has been increasingly utilized in an adjunctive role in the care of many of these patients, coinciding with optimized patient and local wound care.

Distribution of internal pressure around bony prominences: implications to deep tissue injury and effectiveness of intermittent electrical stimulation.

The overall goal of this project is to develop interventions for the prevention of deep tissue injury (DTI), a form of pressure ulcers that originates in deep tissue around bony prominences. The present study focused on: (1) obtaining detailed measures of the distribution of pressure experienced by tissue around the ischial tuberosities, and (2) investigating the effectiveness of intermittent electrical stimulation (IES), a novel strategy for the prevention of DTI, in alleviating pressure in regions at risk of breakdown due to sustained loading. The experiments were conducted in adult pigs. Five animals had intact spinal cords and healthy muscles and one had a spinal cord injury that led to substantial muscle atrophy at the time of the experiment. A force-controlled servomotor was used to load the region of the buttocks to levels corresponding to 25%, 50% or 75% of each animal's body weight. A pressure transducer embedded in a catheter was advanced into the tissue to measure pressure along a three dimensional grid around the ischial tuberosity of one hind leg. For all levels of external loading in intact animals, average peak internal pressure was 2.01 ± 0.08 times larger than the maximal interfacial pressure measured at the level of the skin. In the animal with spinal cord injury, similar absolute values of internal pressure as that in intact animals were recorded, but the substantial muscle atrophy produced larger maximal interfacial pressures. Average peak internal pressure in this animal was 1.43 ± 0.055 times larger than the maximal interfacial pressure. Peak internal pressure was localized within a ±2 cm region medio-laterally and dorso-ventrally from the bone in intact animals and ±1 cm in the animal with spinal cord injury. IES significantly redistributed internal pressure, shifting the peak values away from the bone in spinally intact and injured animals. These findings provide critical information regarding the relationship between internal and interfacial pressure around the ischial tuberosities during loading levels equivalent to those experienced while sitting. The information could guide future computer models investigating the etiology of DTI, as well as inform the design and prescription of seating cushions for people with reduced mobility. The findings also suggest that IES may be an effective strategy for the prevention of DTI.

Dietary intake in clients with chronic wounds.

To assess relationships among food intake, anthropometrics, and wound severity, we studied 31 home care clients with pressure ulcers (PUs) or venous stasis ulcers (VSUs). Anthropometric variables (weight, height, waist circumference [WC]) were measured according to standard methodologies. Risk for PU development was assessed using the Braden Pressure Ulcer Risk Assessment score and wound severity according to the National Pressure Ulcer Advisory Panel. Three-day food records were analyzed to assess dietary adequacy. Adults with VSUs (65.8 ± 18.4 years) had a higher body mass index (48.1 vs. 25.9), WC (146.6 vs. 98.4 cm), and Braden score (20.2 vs. 17.5) than did those with PUs (67.8 ± 17.9 years) (p <0.05). Energy, protein, and zinc intake by diet alone did not meet estimated requirements in 41%, 32%, and 54.5% of clients, respectively. Intake by diet alone met the Estimated Average Requirement/Adequate Intake for all nutrients except fibre, vitamin D, vitamin E, vitamin K, folate, calcium, magnesium, and potassium. Nutrient supplementation resolved this for all nutrients except fibre, vitamin K, and potassium. In multivariate analysis, increasing wound severity was associated with decreased intakes of vitamin A, vitamin K, magnesium, and protein (r2=0.90, p<0.001). Optimizing nutrient intake may be an important strategy to promote wound healing and decrease wound severity in home care clients with chronic wounds.

Medida de la cicatrización en úlceras por presión. ¿Con qué contamos? / Measure healing in pressure ulcers. What do we have?

El presente artículo corresponde a una puesta al día de los métodos e instrumentosde medida de las heridas hacia la cicatrización. La forma en que lasheridas son medidas a menudo es subjetiva, lo que hace que evaluar la eficaciade los tratamientos se haga de manera errónea y se llegue a la parcialidad.En el mismo escrito, se exponen los métodos de medida más usados en elámbito clínico y de investigación, para valorar el progreso o retroceso de lasheridas crónicas hacia la cicatrización. Aunque, en su mayoría, los instrumentosy herramientas que se mencionan hacen referencia sólo a las úlceras porpresión y sólo algunos han sido utilizados en otro tipo de heridas, lo que generaun vacío al tratar de valorar los demás tipos de heridas que se encuentranen este mismo proceso. El aumento de la demanda en la práctica basadaen la evidencia hace que lograr resultados óptimos en la valoración, el tratamientoy coste-efectividad se haya vuelto una prioridad. Esto, sumado a lapoca validez de los instrumentos existentes, hace necesaria la adopción de unenfoque común en el que se estandarice un método fiable, que posea sensibilidadal cambio y que sea válido, de manera que permita a los clínicos tomardecisiones rápidas y concretas en la herida que están tratando (AU)

This paper is an update of the methods and instruments to measure wound healing.The way in which wounds are measured, often seems subjective, which makesassessing the effectiveness of treatments biased. In that article, we present themost widely used measurement methods in clinical and research fields to assessprogress or regression of chronic wounds healing. While most of the instrumentsand tools listed refer only to pressure ulcers and only some have been used in othertypes of wounds, creating a void when trying to evaluate other wound types. Increaseddemand in the evidence-based practice makes optimal results in the assesscontement,treatment and cost effectiveness has become a priority. This coupled withthe lack of validity for existing instruments, makes necessary to adopt a commonapproach to standardize a reliable method, with sensitivity to change and valid,in a way that allows clinicians to make quick and concrete decisions on thewound treated (AU)

Effects of intermittent electrical stimulation on superficial pressure, tissue oxygenation, and discomfort levels for the prevention of deep tissue injury.

The overall goal of this project is to develop effective methods for the prevention of deep tissue injury (DTI). DTI is a severe type of pressure ulcer that originates at deep bone-muscle interfaces as a result of the prolonged compression of tissue. It afflicts individuals with reduced mobility and sensation, particularly those with spinal cord injury. We previously proposed using a novel electrical stimulation paradigm called intermittent electrical stimulation (IES) for the prophylactic prevention of DTI. IES-induced contractions mimic the natural repositioning performed by intact individuals, who subconsciously reposition themselves as a result of discomfort due to prolonged sitting. In this study, we investigated the effectiveness of various IES paradigms in reducing pressure around the ischial tuberosities, increasing tissue oxygenation throughout the gluteus muscles, and reducing sitting discomfort in able-bodied volunteers. The results were compared to the effects of voluntary muscle contractions and conventional pressure relief maneuvers (wheelchair push-ups). IES significantly reduced pressure around the tuberosities, produced significant and long-lasting elevations in tissue oxygenation, and significantly reduced discomfort produced by prolonged sitting. IES performed as well or better than both voluntary contractions and chair push-ups. The results suggest that IES may be an effective means for the prevention of DTI.

The use of sensory electrical stimulation for pressure ulcer prevention.

Pressure ulcer prevention is critically important for many people with reduced mobility. The authors investigated whether sensory (sub-motor-threshold) electrical stimulation (ES) may provide a convenient preventive intervention. A double-blinded, repeated measures study design was used to test the hypothesis that repeated use of sensory surface ES improves tissue health status in individuals with motor paralysis. Six adult males with complete spinal cord injury (SCI) were randomly assigned to treatment or control groups. The treatment group received the ES intervention, whereas the control group received a control sham intervention. Repeated tissue health assessments included transcutaneous oxygen tension (T(c)PO(2)), interface pressure mapping, and gluteal computed tomography (CT) studies. An initial increase in T(c)PO(2) following use of subthreshold ES was observed but was not sustained at follow-up. No statistically significant changes before and after treatment were found in regional T(c)PO(2), gluteal muscle area or pressure distribution. Thus subthreshold ES does not appear to have any sustained effects on tissue health status indicative of reduced pressure ulcer risk for individuals with SCI. This implies that a contractile muscle response is critically important and further that subthreshold ES is unlikely to prevent pressure ulcers. Further studies are needed to find solutions for preventing pressure ulcers in high-risk populations.

Activation of lower back muscles via FES for pressure sores prevention in paraplegia: a case study.

The aim of this paper is to show the feasibility of the use of functional electrical stimulation (FES) applied to the lower back muscles for pressure sores prevention in paraplegia. The hypothesis under study is that FES induces a change in the pressure distribution on the contact area during sitting. Tests were conducted on a paraplegic subject (T5), sitting on a standard wheelchair and cushion. Trunk extensors (mainly the erector spinae) were stimulated using surface electrodes placed on the skin. A pressure mapping system was used to measure the pressure on the sitting surface in four situations: (a) no stimulation; (b) stimulation on one side of the spine only; (c) stimulation on both sides, at different levels; and (d) stimulation at the same level on both sides, during pressure-relief manoeuvres. A session of prolonged stimulation was also conducted. The experimental results show that the stimulation of the erector spinae on one side of the spine can induce a trunk rotation on the sagittal plane, which causes a change in the pressure distribution. A decrease of pressure on the side opposite to the stimulation was recorded. The phenomenon is intensified when different levels of stimulation are applied to the two sides, and such change can be sustained for a considerable time (around 5 minutes). The stimulation did not induce changes during pressure-relief manoeuvres. Finally, from this research we can conclude that the stimulation of the trunk extensors can be a useful tool for pressure sores prevention, and can potentially be used in a routine for pressure sores prevention based on periodical weight shifts.