Aerospace Applications of Wearable Bioimpedance Monitoring

Abstract

The microgravity environment poses unique challenges to the human body, particularly in terms of fluid dynamics. In prolonged periods of weightlessness, body fluids tend to shift and redistribute, which can affect cardiovascular function and respiratory mechanisms and lead to health and performance issues. Bioimpedance monitoring, due to its ability to measure the electrical properties of biological tissues, provides an effective means to assess fluid distribution changes in real-time. By utilizing a bioimpedance-based monitoring system, continuous tracking of fluid distribution patterns becomes possible throughout the duration of a space mission. This enables early detection of potential cardiovascular and respiratory issues resulting from fluid shifts. With the ability to monitor these changes in real-time, timely interventions and mitigation strategies can be implemented to prevent or minimize the development of related health complications. In this paper we present evaluation of a wearable sensor suitable for real-time bioimpedance monitoring. We evaluate system performance of the prototype and possible uses for space applications. Continuous monitoring of fluid redistribution patterns through bioimpedance measurements provides critical information for mission success in manned space exploration. By detecting and addressing fluid-related cardiovascular and respiratory issues at their early stages, the system contributes to maintaining the health and well-being of astronauts during prolonged space missions.