The goal of the TESH project is to study health issues that arise during space travel. Even on short-term missions or after returning to Earth, astronauts may experience symptoms such as blood pressure fluctuations or balance disorders. These symptoms are partly caused by the adaptation processes of the cardiovascular system and the organs responsible for balance. Our research aims to better understand these changes. In the long run, we also plan to further develop a telemedicine system that would assist in assessing astronauts’ health status and even provide automated monitoring.

We use various measurement tools for our investigations, including cardiac and vascular ultrasound, which allows for a more detailed examination of the heart and blood vessels. Participants wear a specialized shirt that continuously monitors heart rate (ECG), respiration, body temperature, movement, and heart rate variability. Additionally, we use a 24-hour blood pressure monitor that records arterial pulsations, aiding in vascular condition analysis. To assess movement and balance, we conduct video-based motion analysis and balance tests. Furthermore, we perform fundus examinations, which enable us to track the condition of the small blood vessels in the eye and identify potential signs of papilledema. This is particularly crucial due to Spaceflight-Associated Neuro-Ocular Syndrome (SANS), a spaceflight-induced ophthalmic condition that can lead to severe residual symptoms.