Suggested Searches

1 min read

Risk of Mission Impacting Injury and Compromised Performance and Long-Term Health Effects due to EVA Operations


NASA astronaut Sunita Williams, Expedition 32 flight engineer, appears to touch the bright sun during the mission?s third session of extravehicular activity (EVA). During the six-hour, 28-minute spacewalk, Williams and Japan Aerospace Exploration Agency astronaut Aki Hoshide (visible in the reflections of Williams? helmet visor), flight engineer, completed the installation of a Main Bus Switching Unit (MBSU) that was hampered last week by a possible misalignment and damaged threads where a bolt must be placed. They also installed a camera on the International Space Station?s robotic arm, Canadarm2.

NASA-STD-3001: NASA Spaceflight Human-System Standard Vol 1: Crew Health and Vol 2: Human Factors, Habitability, and Environmental Health and NASA/SP-2010-3407, Human Integration Design Handbook (HIDH): suit life support and basic functionality; HIDH includes observed metabolic rates and human factors; no suit-induced operational injury prevention or operations guidance. Training injury data available, but injury mechanisms and associated individual risk factors (sex, anthropometry, fitness, etc.) are not yet understood. Microgravity EVA performance is characterized, but the physiological and functional demands of planetary EVAs are not understood, outside of a limited number of Lunar and Mars sites, where humans and robotic landers have been.

Directed Acyclic Graph Files

+ DAG File Information (HSRB Home Page)

+ EVA Risk DAG and Narrative (PDF)

+ EVA Risk DAG Code (TXT)

Human Research Roadmap

+ Risk of Injury and Compromised Performance Due to EVA Operations



Last Updated
Dec 19, 2023
Robert E. Lewis