Last Published:  07/31/19 10:05:30 AM (Central)
Responsible Element: Human Health Countermeasures (HHC)
Status: Open
Description
Initial State of Gap: Exposure to space flight causes adaptations in multiple physiological systems including changes in sensorimotor, cardiovascular, and neuromuscular systems. These changes may affect a crewmember’s ability to perform critical mission tasks immediately after landing on a planetary surface. Data are required that link changes in sensorimotor function with operational performance deficits particularly for the period soon after landing on a planetary surface. 

Target for Gap Closure: Define the magnitude of change and time course of recovery of functional tasks including mission-related activities after a spaceflight mission (such as hatch opening, ladder climbing, emergency egress) and map these decrements to physiological changes in: the sensorimotor system (balance control, gaze control, locomotor control, eye-head-hand coordination), the cardiovascular system (blood pressure, heart rate, autonomic control), and the neuromuscular system (muscle strength, muscle endurance, muscle power, neuromuscular activation, and force control).  This information will be used to assess performance risk for mission critical activities, inform standards and will be used to develop countermeasures that specifically target the physiological systems most responsible for the altered functional performance associated with spaceflight (SM28).

Interim steps:
1.Conduct data mining activities to review existing evidence regarding the relationship between in-flight exercise and post-flight sensorimotor performance.
2.Conduct flight and ground studies to determine the effects of space flight and space flight analogs on the ability to perform mission related functional tasks and identify the key physiological factors that contribute to decrements in functional performance.
3.Develop and conduct a set of sensorimotor tests soon after landing following a long-duration spaceflight at remote testing sites.
4.Update the evidence report and NASA standards with information defining the acceptable level of sensorimotor risk based on functional performance thresholds below which task performance is impaired.
5.Use evidence acquired to address sensorimotor gaps SM24 and SM28.

Approach: Conduct data mining, ground and flight studies to determine the effects of space flight and space flight analogs on functional tests that are representative of high priority exploration mission tasks and to identify the key underlying physiological factors that contribute to decrements in performance.
Target for Closure
Define the magnitude of change and time course of recovery of functional tasks including mission-related activities after a spaceflight mission (such as hatch opening, ladder climbing, emergency egress) and map these decrements to physiological changes in: the sensorimotor system (balance control, gaze control, locomotor control, eye-head-hand coordination), the cardiovascular system (blood pressure, heart rate, autonomic control), and the neuromuscular system (muscle strength, muscle endurance, muscle power, neuromuscular activation, and force control).  This information will be used to assess performance risk for mission critical activities, inform standards and will be used to develop countermeasures that specifically target the physiological systems most responsible for the altered functional performance associated with spaceflight (SM28).
Mappings
Risk Risk of Impaired Control of Spacecraft/Associated Systems and Decreased Mobility Due to Vestibular/Sensorimotor Alterations Associated with Spaceflight
Risk Risk of Impaired Performance Due to Reduced Muscle Mass, Strength & Endurance
Risk Risk of Adverse Cognitive or Behavioral Conditions and Psychiatric Disorders
You are here! Gap CBS-SM7.1: Determine if there are decrements in performance on functional tasks after long-duration spaceflight. Determine how changes in physiological function, exercise activity, and/or clinical data account for these decrements.
Active
Completed
Planned-Funded
Planned-Unfunded

Documentation:
No Documentation Available