CPR In Space? Best Method Identified, Researchers Say
Mechanical chest compressions achieved a median depth of 53mm, meeting resuscitation guidelines, while manual methods fell short in microgravity simulations aboard Europe's A310 Air Zero G.
- Researchers led by Nathan Reynette tested different CPR methods for microgravity aboard a modified A310 aircraft in August 2025.
- They conducted three flights with parabolic curves to simulate 22 seconds of microgravity per parabola to explore effective CPR in space.
- The standard mechanical piston device achieved an average compression depth of 53 millimeters, surpassing the handstand method's 34.5 millimeters, which is inadequate for blood flow.
- International guidelines suggest chest compression depths of 50 to 60 millimeters for effective CPR, and Reynette emphasized that this study reinforces the potential benefits of using automated chest compression devices.
- The findings imply that mechanical CPR devices could improve emergency response during space missions and other isolated environments, pending future adoption by space agencies.
30 Articles
30 Articles

CPR In Space? Best Method Identified, Researchers Say
Key Takeaways


CPR in space could be made easier by chest compression machines
Performing CPR on a space station in microgravity involves doing a handstand on a person's chest and pushing against the walls with your legs – but now researchers say there is a better way
Cardiac arrest in space: Research shows that automatic chest compressions are more effective for CPR
New research presented at the 2025 European Society of Cardiology Congress in Madrid, Spain, has found a more effective way to conduct cardiopulmonary resuscitation (CPR) in microgravity, which causes the weightlessness astronauts experience in space.
Chest Compressors: Simplifying CPR in Tight Spaces
Researchers evaluate chest compressors on aircraft dummies CNES Due to the challenges of microgravity, tasks as simple as eating or showering become complex, making CPR on individuals who stop breathing in space a highly specialized process. However, experiments in simulated microgravity indicate that mechanical devices may perform more efficiently. On Earth, weight and muscle strength [...] The post Chest Compressors: Simplifying CPR in Tight S…
New research presented at the Congress of the European Cardiology Society 2025 in Madrid, Spain, has found a more effective way to conduct cardiopulmonary resuscitation (CCR) in microgravity, which causes the astronaut's experience in space. The study revealed that a type of automatic chest compression, carried out by a piston device [...]
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