Validation and Usability Study of Intermittent Electrical Simulation in Management of Pressure Injuries Stages 1 and 2

Inclusion Criteria: Willing and able to provide written informed consent to participate and wear Prelivia for the duration of the study but not longer than 30 days Patients with new or already established stage 1 and 2 pressure injuries BMI \<40 Pressure injury location sacral/ischial region \- Exclusion Criteria: * existing pressure injury above stage 2 and injuries classified as DTI or unstageable continuous neuromuscular blocking drugs \& myasthenia gravis: may prevent the ability of IES to induce muscular contraction * electrical stimulation to induce muscular contraction * presence of permanent pacemaker or AICD, and for those with external wires after cardiac surgery, those who are using or at high risk for the development of a requirement for an external pacemaker * unstable spinal, pelvic, or hop fractures that may be displaced by a forced contraction (for sacral and ischial ulcers) * rhabdomyolysis * skin breakdown or malignant skin involvement over the effected regions that would preclude the use of surface electrodes * any implantable electrostimulation device * have pacemaker or any other implantable neurostimulation devices, * if your pressure injury is above stage 2, or * if you are receiving neuromuscular blocking drugs, * if you have myasthenia gravis, * if you have unstable spinal, pelvic, or hip fractures that may be displaced by a forced contraction or * if you are wearing an incontinence brief and have frequently loose bowel movements