Gap EVA 9: What is the effect on crew performance & health of variations in EVA task design and operations concepts for exploration environments?
Last Published:  07/31/19 10:05:30 AM (Central)
Responsible Element: Human Health Countermeasures (HHC)
Status: Open
Description

Present state:  Future exploration missions are expected to have more planned EVAs than ever before. In NASA history, a single astronaut has never performed more than three surface EVAs or four microgravity EVAs in one mission. Some design reference missions for exploration have astronauts performing almost daily EVAs over many months. It is important to determine if workload, work/rest cycles, EVA frequency, or EVA duration have an effect on short-term and long-term crew performance and health over exploration missions.


Approach:  Studies to address this gap will be performed in collaboration with the Behavioral Health and Performance Element and will evaluate human performance in analogs that provide a mission-like setting including EVA operations and simulation. Data and tools resulting from these studies will be provided to Space Medicine and Mission Operations to assist in development of timelines and countermeasures to optimize crew health and performance.

Target for Closure
The target for closure is the characterization of how EVA duration affects human performance, particularly how much work can be performed physiologically per hour up to 8 hours straight.  Additional target would be the definition of a real-time measure of objective fatigue during EVA operations.
Mappings
Risk Risk of Injury and Compromised Performance Due to EVA Operations
You are here! Gap EVA 9: What is the effect on crew performance & health of variations in EVA task design and operations concepts for exploration environments?
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