Project Title:  Validation of Fitness for Duty Standards Using Pre- and Post-Flight Capsule Egress and Suited Functional Performance Tasks in Simulated Reduced Gravity Reduce
Images: icon  Fiscal Year: FY 2019 
Division: Human Research 
Research Discipline/Element:
HRP HHC:Human Health Countermeasures
Start Date: 01/30/2019  
End Date: 05/30/2020  
Task Last Updated: 04/19/2019 
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Principal Investigator/Affiliation:   Norcross, Jason  M.S. / Wyle Laboratories, Inc./NASA Johnson Space Center 
Address:  2400 NASA Pkwy 
Houston , TX 77058-3711 
Phone: 281-483-7114  
Congressional District: 36 
Organization Type: NASA CENTER 
Organization Name: Wyle Laboratories, Inc./NASA Johnson Space Center 
Joint Agency:  
Abercromby, Andrew  Ph.D. NASA Johnson Space Center 
Bloomberg, Jacob  Ph.D. NASA Johnson Space Center 
Reschke, Millard  Ph.D. NASA Johnson Space Center 
Ryder, Jeffrey  Ph.D. NASA Johnson Space Center 
Young, Millennia  Ph.D. NASA Johnson Space Center 
Project Information: Grant/Contract No. Internal Project 
Responsible Center: NASA JSC 
Grant Monitor: Norsk, Peter  
Center Contact: 
Solicitation: 2017 HERO 80JSC017N0001-BPBA Topics in Biological, Physiological, and Behavioral Adaptations to Spaceflight. Appendix C 
Grant/Contract No.: Internal Project 
Project Type: FLIGHT 
Flight Program:  
TechPort: No 
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Human Research Program Elements: (1) HHC:Human Health Countermeasures
Human Research Program Risks: (1) EVA:Risk of Injury and Compromised Performance due to EVA Operations (IRP Rev F)
(2) HFBP Bmed:Risk of Adverse Cognitive or Behavioral Conditions and Psychiatric Disorders (IRP Rev J)
(3) HHC-Sensorimotor:Risk of Impaired Control of Spacecraft/Associated Systems and Decreased Mobility Due to Vestibular/Sensorimotor Alterations Associated with Spaceflight (IRP Rev J)
Human Research Program Gaps: (1) CBS-SM2.1:Determine the changes in sensorimotor function over the course of a mission and during recovery after landing (IRP Rev J)
(2) EVA06:What crew physiological & performance capabilities are required for EVA operations in exploration environments? (IRP Rev F)
(3) EVA09:What is the effect on crew performance & health of variations in EVA task design and operations concepts for exploration environments? (IRP Rev F)
(4) EVA11:How do EVA operations in exploration environments increase the risk of crew injury and how can the risk be mitigated? (IRP Rev F)
Task Description: Rigorous adherence to available inflight countermeasures has effectively mitigated losses or maintained muscle strength and aerobic capacity in some returning long-duration International Space Station (ISS) crewmembers; however, all astronauts demonstrate significant decrements in functional performance upon return to a gravity environment. These losses in functional performance can be largely attributed to neurovestibular / sensorimotor deficits that can take days or weeks from which to recover and for which there is no current operational countermeasure. Although these losses are tolerable for current land-based returns to Earth, where ground personnel can quickly support the crew at the landing site, this will not be the case for future off-nominal water-based Orion landings or for nominal Mars surface landings, both of which will require crewmembers to be capable of egressing their landing vehicle unassisted.

Quantification of astronauts' post-landing functional capacity including ability to perform an unassisted capsule egress and critical planetary extravehicular activity (EVA) tasks is necessary to design concepts of operation for Moon and Mars exploration mission systems and ultimately to promote exploration mission success. These results can then be reviewed in combination with other pre-flight, in-flight, and post-landing measures and determinants of health and performance (e.g., sleep, nutrition, exercise) to help develop and select necessary countermeasures capable of protecting all crewmembers or to identify characteristics (both behavioral and inherent) that might allow for selection of crew dependent on mission objectives.

Data collected in this proposal will provide unique data on unassisted capsule egress while wearing an unpressurized launch, entry, abort (LEA) suit in Earth's gravity and on EVA-relevant functional task performance by testing astronauts shortly after return to Earth while suited and pressurized in a simulated reduced gravity analog. The research product will be a temporal profile of unassisted capsule egress and planetary EVA task performance pre-flight and at multiple post-landing intervals, the timing of which will be determined based on post-landing logistics and coordination with other investigations. Data will be collected for spaceflight missions ranging from 2 months, 6 months, and up to 1 year in duration. Results of the proposed study will be used in combination with subsequent definition and design of exploration mission systems and operations concepts to define data-based Fitness for Duty standards.

Research Impact/Earth Benefits:

Task Progress & Bibliography Information FY2019 
Task Progress: New project for FY2019.

Bibliography Type: Description: (Last Updated: 05/30/2017)  Show Cumulative Bibliography Listing
 None in FY 2019