Objective Pressure Injury Risk Assessment Using A Wearable Pressure Sensor The healthcare industry has placed significant effort on reducing pressure injuries as they often occur while patients are seeking treatment for an unrelated condition, lengthen the stay of the patient, impact treatment options, are extremely painful, and can result in death. Current work has shown that an increase in nursing care can reduce pressure injury occurrence, but increased nursing care is not sustainable. The Braden Scale is the current method of stratifying patients by risk of forming a pressure injury, but previous work has shown that the Braden Scale is not an accurate predictor of pressure injury formation. We present an objective mobility measure of pressure injury risk that can be used in addition to the Braden Scale using a wearable pressuresensing device. By assessing the current pressure readings in realtime we can determine when a patient is mobile and present this data to the clinic. In future we aim to use this mobility measurement in a Cloudbased system that can compare the mobility measurements to similar patients to assess risk with increased accuracy.

Wearable Sensor System to Monitor Physical Activity and the Physiological Effects of Heat Exposure Mobile health monitoring via noninvasive wearable sensors is poised to advance telehealth for older adults and other vulnerable populations. Extreme heat and other environmental conditions raise serious health challenges that warrant monitoring of realtime physiological data as people go about their normal activities. Mobile systems could be beneficial for many communities, including elite athletes, military special forces, and athome geriatric monitoring. While some commercial monitors exist, they are bulky, require reconfiguration, and do not fit seamlessly as a simple wearable device. We designed, prototyped and tested an integrated sensor platform that records heart rate, oxygen saturation, physical activity levels, skin temperature, and galvanic skin response. The device uses a small microcontroller to integrate the measurements and store data directly on the device for up to 48 h. continuously. The device was compared to clinical standards for calibration and performance benchmarking. We found that our system compared favorably with clinical measures, such as fingertip pulse oximetry and infrared thermometry, with high accuracy and correlation. Our novel platform would facilitate an individualized approach to care, particularly those whose access to healthcare facilities is limited. The platform also can be used as a research tool to study physiological responses to a variety of environmental conditions, such as extreme heat, and can be customized to incorporate new sensors to explore other lines of inquiry.