Beat to BEAT – Non-Invasive Investigation of Cardiac Function on the International Space Station
Executive Summary
This study investigates the feasibility of using a wearable Ballistocardiography (BCG) and Seismocardiography (SCG) system integrated into a smart shirt for continuous cardiac monitoring in microgravity aboard the International Space Station (ISS). The experiment evaluates cardiac parameters such as heart rate variability, pulse transit time, and valve timing, comparing earthbound and microgravity conditions. Findings aim to inform future health monitoring systems for space missions and earth applications.
Answer Machine Insights
Q: What cardiac parameters were measured in the study?
Heart rate, heart rate variability, pulse transit time, and cardiac valve timing were measured.
We measure and calculate basic cardiac parameters (heart rate, heart rate variability, pulse transit time) and explore whether other parameters, like the heart contraction interval, ejection and filling volumes, absolute and relative cardiac function event times (heart valve opening and closing) can be observed or calculated.
Q: How was data transmitted from the ISS to earth?
Data was transmitted wirelessly via Ultra Wideband (UWB) link and backed up on dual redundant SD cards.
All data were transmitted via the comm module using UWB link. Evaluations showed a Packet Reception Ratio (PRR) of 99.88%, however, dual redundant SD-Cards are used as an additional backup.
Key Results
Heart rate variability (HRV) was successfully measured in both earthbound and microgravity conditions.
Packet Reception Ratio (PRR) of 99.88% was achieved for wireless data transmission.
Clinical Snapshot
Evidence Rating
Relevance
high Priority